Tag Archives: Vulnerabilities & Exploits

Microsoft Patch Tuesday – September 2013

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Hello, welcome to this month’s blog on the Microsoft patch release. This month the vendor is releasing thirteen bulletins covering a total of 47 vulnerabilities. Thirteen of this month’s issues are rated ’Critical’.

As always, customers are advised to follow these security best practices:

  • Install vendor patches as soon as they are available.
  • Run all software with the least privileges required while still maintaining functionality.
  • Avoid handling files from unknown or questionable sources.
  • Never visit sites of unknown or questionable integrity.
  • Block external access at the network perimeter to all key systems unless specific access is required.

Microsoft’s summary of the September releases can be found here:
http://technet.microsoft.com/en-us/security/bulletin/ms13-Sep

The following is a breakdown of the issues being addressed this month:

  1. MS13-068 Vulnerability in Microsoft Outlook Could Allow Remote Code Execution (2756473)

    Message Certificate Vulnerability (CVE-2013-3870) MS Rating: Critical

    A remote code execution vulnerability exists in the way that Microsoft Outlook parses specially crafted S/MIME email messages. An attacker who successfully exploited this vulnerability could take complete control of an affected system. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights.

  2. MS13-069 Cumulative Security Update for Internet Explorer (2870699)

    Internet Explorer Memory Corruption Vulnerability (CVE-2013-3201) MS Rating: Critical

    A remote code execution vulnerability exists when Internet Explorer improperly accesses an object in memory. This vulnerability may corrupt memory in such a way that an attacker could execute arbitrary code in the context of the current user.

    Internet Explorer Memory Corruption Vulnerability (CVE-2013-3202) MS Rating: Critical

    A remote code execution vulnerability exists when Internet Explorer improperly accesses an object in memory. This vulnerability may corrupt memory in such a way that an attacker could execute arbitrary code in the context of the current user.

    Internet Explorer Memory Corruption Vulnerability (CVE-2013-3203) MS Rating: Critical

    A remote code execution vulnerability exists when Internet Explorer improperly accesses an object in memory. This vulnerability may corrupt memory in such a way that an attacker could execute arbitrary code in the context of the current user.

    Internet Explorer Memory Corruption Vulnerability (CVE-2013-3204) MS Rating: Critical

    A remote code execution vulnerability exists when Internet Explorer improperly accesses an object in memory. This vulnerability may corrupt memory in such a way that an attacker could execute arbitrary code in the context of the current user.

    Internet Explorer Memory Corruption Vulnerability (CVE-2013-3205) MS Rating: Critical

    A remote code execution vulnerability exists when Internet Explorer improperly accesses an object in memory. This vulnerability may corrupt memory in such a way that an attacker could execute arbitrary code in the context of the current user.

    Internet Explorer Memory Corruption Vulnerability (CVE-2013-3206) MS Rating: Critical

    A remote code execution vulnerability exists when Internet Explorer improperly accesses an object in memory. This vulnerability may corrupt memory in such a way that an attacker could execute arbitrary code in the context of the current user.

    Internet Explorer Memory Corruption Vulnerability (CVE-2013-3207) MS Rating: Critical

    A remote code execution vulnerability exists when Internet Explorer improperly accesses an object in memory. This vulnerability may corrupt memory in such a way that an attacker could execute arbitrary code in the context of the current user.

    Internet Explorer Memory Corruption Vulnerability (CVE-2013-3208) MS Rating: Critical

    A remote code execution vulnerability exists when Internet Explorer improperly accesses an object in memory. This vulnerability may corrupt memory in such a way that an attacker could execute arbitrary code in the context of the current user.

    Internet Explorer Memory Corruption Vulnerability (CVE-2013-3209) MS Rating: Critical

    A remote code execution vulnerability exists when Internet Explorer improperly accesses an object in memory. This vulnerability may corrupt memory in such a way that an attacker could execute arbitrary code in the context of the current user.

    Internet Explorer Memory Corruption Vulnerability (CVE-2013-3845) MS Rating: Critical

    A remote code execution vulnerability exists when Internet Explorer improperly accesses an object in memory. This vulnerability may corrupt memory in such a way that an attacker could execute arbitrary code in the context of the current user.

  3. MS13-067 Vulnerabilities in Microsoft SharePoint Server Could Allow Remote Code Execution (2834052)

    SharePoint Denial of Service Vulnerability (CVE-2013-0081) MS Rating: Important

    A denial of service vulnerability exists in Microsoft SharePoint Server. An attacker who successfully exploited this vulnerability could cause the W3WP process on an affected version of SharePoint Server to stop responding, causing the SharePoint site, and any other sites running under that process, to become unavailable until the process is restarted.

    MAC Disabled Vulnerability (CVE-2013-1330) MS Rating: Critical

    A remote code execution vulnerability exists in the way SharePoint Server handles unassigned workflows. An attacker who successfully exploited this vulnerability could run arbitrary code in the context of the W3WP service account.

    SharePoint XSS Vulnerability (CVE-2013-3179) MS Rating: Important

    An elevation of privilege exists in Microsoft SharePoint Server. An attacker who successfully exploited this vulnerability could allow an attacker to perform cross-site scripting attacks and run script in the security context of the logged-on user.

    POST XSS Vulnerability (CVE-2013-3180) MS Rating: Important

    An elevation of privilege exists in Microsoft SharePoint Server. An attacker who successfully exploited this vulnerability could allow an attacker to perform cross-site scripting attacks and run script in the security context of the logged-on user.

  4. MS13-072 Vulnerabilities in Microsoft Office Could Allow Remote Code Execution (2845537)

    XML External Entities Resolution Vulnerability (CVE-2013-3160) MS Rating: Important

    An information disclosure vulnerability exists in the way that Microsoft Word parses specially crafted XML files containing external entities.

    Word Memory Corruption Vulnerability (CVE-2013-3847) MS Rating: Important

    A remote code execution vulnerability exists in the way that affected Microsoft Office software parses specially crafted files. An attacker who successfully exploited this vulnerability could take complete control of an affected system. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights.

    Word Memory Corruption Vulnerability (CVE-2013-3848) MS Rating: Important

    A remote code execution vulnerability exists in the way that affected Microsoft Office software parses specially crafted files. An attacker who successfully exploited this vulnerability could take complete control of an affected system. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights.

    Word Memory Corruption Vulnerability (CVE-2013-3849) MS Rating: Important

    A remote code execution vulnerability exists in the way that affected Microsoft Office software parses specially crafted files. An attacker who successfully exploited this vulnerability could take complete control of an affected system. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights.

    Word Memory Corruption Vulnerability (CVE-2013-3850) MS Rating: Important

    A remote code execution vulnerability exists in the way that affected Microsoft Office software parses specially crafted files. An attacker who successfully exploited this vulnerability could take complete control of an affected system. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights.

    Word Memory Corruption Vulnerability (CVE-2013-3851) MS Rating: Important

    A remote code execution vulnerability exists in the way that affected Microsoft Office software parses specially crafted files. An attacker who successfully exploited this vulnerability could take complete control of an affected system. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights.

    Word Memory Corruption Vulnerability (CVE-2013-3852) MS Rating: Important

    A remote code execution vulnerability exists in the way that affected Microsoft Office software parses specially crafted files. An attacker who successfully exploited this vulnerability could take complete control of an affected system. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights.

    Word Memory Corruption Vulnerability (CVE-2013-3853) MS Rating: Important

    A remote code execution vulnerability exists in the way that affected Microsoft Office software parses specially crafted files. An attacker who successfully exploited this vulnerability could take complete control of an affected system. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights.

    Word Memory Corruption Vulnerability (CVE-2013-3854) MS Rating: Important

    A remote code execution vulnerability exists in the way that affected Microsoft Office software parses specially crafted files. An attacker who successfully exploited this vulnerability could take complete control of an affected system. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights.

    Word Memory Corruption Vulnerability (CVE-2013-3855) MS Rating: Important

    A remote code execution vulnerability exists in the way that affected Microsoft Office software parses specially crafted files. An attacker who successfully exploited this vulnerability could take complete control of an affected system. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights.

    Word Memory Corruption Vulnerability (CVE-2013-3856) MS Rating: Important

    A remote code execution vulnerability exists in the way that affected Microsoft Office software parses specially crafted files. An attacker who successfully exploited this vulnerability could take complete control of an affected system. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights.

    Word Memory Corruption Vulnerability (CVE-2013-3857) MS Rating: Important

    A remote code execution vulnerability exists in the way that affected Microsoft Office software parses specially crafted files. An attacker who successfully exploited this vulnerability could take complete control of an affected system. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights.

    Word Memory Corruption Vulnerability (CVE-2013-3858) MS Rating: Important

    A remote code execution vulnerability exists in the way that affected Microsoft Office software parses specially crafted files. An attacker who successfully exploited this vulnerability could take complete control of an affected system. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights.

  5. MS13-074 Vulnerabilities in Microsoft Access Could Allow Remote Code Execution (2848637)

    Access Memory Corruption Vulnerability (CVE-2013-3155) MS Rating: Important

    A remote code execution vulnerability exists in the way that Microsoft Access parses content in Access files. An attacker who successfully exploited this vulnerability could take complete control of an affected system. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights. Users whose accounts are configured to have fewer user rights on the system could be less impacted than users who operate with administrative user rights.

    Access Memory Corruption Vulnerability (CVE-2013-3156) MS Rating: Important

    A remote code execution vulnerability exists in the way that Microsoft Access parses content in Access files. An attacker who successfully exploited this vulnerability could take complete control of an affected system. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights. Users whose accounts are configured to have fewer user rights on the system could be less impacted than users who operate with administrative user rights.

    Access Memory Corruption Vulnerability (CVE-2013-3157) MS Rating: Important

    A remote code execution vulnerability exists in the way that Microsoft Access parses content in Access files. An attacker who successfully exploited this vulnerability could take complete control of an affected system. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights. Users whose accounts are configured to have fewer user rights on the system could be less impacted than users who operate with administrative user rights.

  6. MS13-073 Vulnerabilities in Microsoft Excel Could Allow Remote Code Execution (2858300)

    Microsoft Office Memory Corruption Vulnerability (CVE-2013-1315) MS Rating: Important

    A remote code execution vulnerability exists in the way that Microsoft Excel parses content in Excel files. An attacker who successfully exploited this vulnerability could take complete control of an affected system. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights. Users whose accounts are configured to have fewer user rights on the system could be less impacted than users who operate with administrative user rights.

    Microsoft Office Memory Corruption Vulnerability (CVE-2013-3158) MS Rating: Important

    A remote code execution vulnerability exists in the way that Microsoft Excel parses content in Excel files. An attacker who successfully exploited this vulnerability could take complete control of an affected system. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights. Users whose accounts are configured to have fewer user rights on the system could be less impacted than users who operate with administrative user rights.

    XML External Entities Resolution Vulnerability (CVE-2013-3159) MS Rating: Important

    An information disclosure vulnerability exists in the way that Microsoft Excel parses specially crafted XML files containing external entities.

  7. MS13-071 Vulnerability in Windows Theme File Could Allow Remote Code Execution (2864063)

    Windows Theme File Remote Code Execution Vulnerability (CVE-2013-0810) MS Rating: Important

    A remote code execution vulnerability exists in the way Windows handles certain specially crafted Windows theme files. This vulnerability could allow an attacker to execute arbitrary code if the attacker convinces a user to apply a specially crafted Windows theme. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights.

  8. MS13-077 Vulnerability in Windows Service Control Manager Could Allow Elevation of Privilege (2872339)

    Service Control Manager Double Free Vulnerability (CVE-2013-3862) MS Rating: Important

    A vulnerability exists in the way that the Windows Service Control Manager (SCM) handles objects in memory. An attacker who successfully exploited this vulnerability could execute arbitrary code and take complete control of an affected system. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights.

  9. MS13-070 Vulnerability in OLE Could Allow Remote Code Execution (2876217)

    OLE Property Vulnerability (CVE-2013-3863) MS Rating: Important

    A vulnerability exists in OLE that could lead to remote code execution if a user opens a file that contains a specially crafted OLE object. An attacker who successfully exploited this vulnerability could gain the same user rights as the logged-on user. If a user is logged on with administrative user rights, an attacker could take complete control of the affected system. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights. Users whose accounts are configured to have fewer user rights on the system could be less impacted than users who operate with administrative user rights.

  10. MS13-078 Vulnerability in FrontPage Could Allow Information Disclosure (2825621)

    XML Disclosure Vulnerability (CVE-2013-3137) MS Rating: Important

    An information disclosure vulnerability exists in FrontPage that could allow an attacker to disclose the contents of a file on a target system.

  11. MS13-075 Vulnerability in Microsoft Office IME (Chinese) Could Allow Elevation of Privilege (2878687)

    Chinese IME Vulnerability (CVE-2013-3859) MS Rating: Important

    An elevation of privilege vulnerability exists in Office IME (Chinese) that could allow a low-privilege user to elevate their privileges.

  12. MS13-076 Vulnerabilities in Kernel-Mode Drivers Could Allow Elevation of Privilege (2876315)

    Win32k Multiple Fetch Vulnerability (CVE-2013-1341) MS Rating: Important

    An elevation of privilege vulnerability exists when the Windows kernel-mode driver improperly handles objects in memory. An attacker who successfully exploited this vulnerability could gain elevated privileges and read arbitrary amounts of kernel memory.

    Win32k Multiple Fetch Vulnerability (CVE-2013-1342) MS Rating: Important

    An elevation of privilege vulnerability exists when the Windows kernel-mode driver improperly handles objects in memory. An attacker who successfully exploited this vulnerability could gain elevated privileges and read arbitrary amounts of kernel memory.

    Win32k Multiple Fetch Vulnerability (CVE-2013-1343) MS Rating: Important

    An elevation of privilege vulnerability exists when the Windows kernel-mode driver improperly handles objects in memory. An attacker who successfully exploited this vulnerability could gain elevated privileges and read arbitrary amounts of kernel memory.

    Win32k Multiple Fetch Vulnerability (CVE-2013-1344) MS Rating: Important

    An elevation of privilege vulnerability exists when the Windows kernel-mode driver improperly handles objects in memory. An attacker who successfully exploited this vulnerability could gain elevated privileges and read arbitrary amounts of kernel memory.

    Win32k Multiple Fetch Vulnerability (CVE-2013-3864) MS Rating: Important

    An elevation of privilege vulnerability exists when the Windows kernel-mode driver improperly handles objects in memory. An attacker who successfully exploited this vulnerability could gain elevated privileges and read arbitrary amounts of kernel memory.

    Win32k Multiple Fetch Vulnerability (CVE-2013-3865) MS Rating: Important

    An elevation of privilege vulnerability exists when the Windows kernel-mode driver improperly handles objects in memory. An attacker who successfully exploited this vulnerability could gain elevated privileges and read arbitrary amounts of kernel memory.

    Win32k Elevation of Privilege Vulnerability (CVE-2013-3866) MS Rating: Important

    An elevation of privilege vulnerability exists when the Windows kernel-mode driver improperly handles objects in memory. An attacker who successfully exploited this vulnerability could gain elevated privileges and read arbitrary amounts of kernel memory.

  13. MS13-079 Vulnerability in Active Directory Could Allow Denial of Service (2853587)

    Remote Anonymous DoS Vulnerability (CVE-2013-3868) MS Rating: Important

    A denial of service vulnerability exists in implementations of Active Directory that could cause the service to stop responding until an administrator restarts the service. The vulnerability is caused when the LDAP service fails to handle a specially crafted query.

More information on the vulnerabilities being addressed this month is available at Symantec’s free SecurityFocus portal and to our customers through the DeepSight Threat Management System.

Microsoft Patch Tuesday – August 2013

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Hello, welcome to this month’s blog on the Microsoft patch release. This month the vendor is releasing eight bulletins covering a total of 23 vulnerabilities. 14 of this month’s issues are rated ’Critical’.

As always, customers are advised to follow these security best practices:

  • Install vendor patches as soon as they are available.
  • Run all software with the least privileges required while still maintaining functionality.
  • Avoid handling files from unknown or questionable sources.
  • Never visit sites of unknown or questionable integrity.
  • Block external access at the network perimeter to all key systems unless specific access is required.

Microsoft’s summary of the July releases can be found here:
http://technet.microsoft.com/en-us/security/bulletin/ms13-Aug

The following is a breakdown of the issues being addressed this month:

  1. MS13-066 Vulnerability in Active Directory Federation Services Could Allow Information Disclosure (2873872)

    AD FS Information Disclosure Vulnerability (CVE-2013-3185) MS Rating: Important

    An information disclosure vulnerability exists in Active Directory Federation Services (AD FS) that could allow the unintentional disclosure of account information.

  2. MS13-062 Vulnerability in Remote Procedure Call Could Allow Elevation of Privilege (2849470)

    Remote Procedure Call Vulnerability (CVE-2013-3175) MS Rating: Important

    An elevation of privilege vulnerability exists in the way that Windows handles asynchronous RPC requests. An attacker who successfully exploited this vulnerability could execute arbitrary code and take complete control of an affected system. An attacker could then install programs, view, change, or delete data, or create new accounts with full user rights.

  3. MS13-064 Vulnerability in Windows NAT Driver Could Allow Denial of Service (2849568)

    Windows NAT Denial of Service Vulnerability (CVE-2013-3182) MS Rating: Important

    A denial of service vulnerability exists in the Windows NAT Driver that could cause the target system to stop responding until restarted.

  4. MS13-060 Vulnerability in Unicode Scripts Processor Could Allow Remote Code Execution (2850869)

    Uniscribe Font Parsing Engine Memory Corruption Vulnerability (CVE-2013-3181) MS Rating: Critical

    A remote code execution vulnerability exists in the Unicode Scripts Processor included in affected versions of Microsoft Windows. An attacker who successfully exploited this vulnerability could run arbitrary code as the current user.

  5. MS13-065 Vulnerability in ICMPv6 could allow Denial of Service (2868623)

    ICMPv6 Vulnerability (CVE-2013-3183) MS Rating: Important

    A denial of service vulnerability exists in the Windows TCP/IP stack that could cause the target system to stop responding until restarted. The vulnerability is caused when the TCP/IP stack does not properly allocate memory for incoming ICMPv6 packets.

  6. MS13-059 Cumulative Security Update for Internet Explorer (2862772)

    Internet Explorer Process Integrity Level Assignment Vulnerability (CVE-2013-3186) MS Rating: Moderate

    An elevation of privilege vulnerability exists in the way that Internet Explorer handles process integrity level assignment in specific cases. An attacker who successfully exploited this vulnerability could allow arbitrary code to execute with elevated privileges.

    EUC-JP Character Encoding Vulnerability (CVE-2013-3192) MS Rating: Moderate

    An information disclosure vulnerability exists in Internet Explorer that could allow script to perform cross-site scripting attacks. An attacker could exploit the vulnerability by inserting specially crafted strings into a website, resulting in information disclosure when a user viewed the website.

    Internet Explorer Memory Corruption Vulnerability (CVE-2013-3184) MS Rating: Critical

    A remote code execution vulnerability exists when Internet Explorer improperly accesses an object in memory. This vulnerability may corrupt memory in such a way that an attacker could execute arbitrary code in the context of the current user.

    Internet Explorer Memory Corruption Vulnerability (CVE-2013-3187) MS Rating: Critical

    A remote code execution vulnerability exists when Internet Explorer improperly accesses an object in memory. This vulnerability may corrupt memory in such a way that an attacker could execute arbitrary code in the context of the current user.

    Internet Explorer Memory Corruption Vulnerability (CVE-2013-3188) MS Rating: Critical

    A remote code execution vulnerability exists when Internet Explorer improperly accesses an object in memory. This vulnerability may corrupt memory in such a way that an attacker could execute arbitrary code in the context of the current user.

    Internet Explorer Memory Corruption Vulnerability (CVE-2013-3189) MS Rating: Critical

    A remote code execution vulnerability exists when Internet Explorer improperly accesses an object in memory. This vulnerability may corrupt memory in such a way that an attacker could execute arbitrary code in the context of the current user.

    Internet Explorer Memory Corruption Vulnerability (CVE-2013-3190) MS Rating: Critical

    A remote code execution vulnerability exists when Internet Explorer improperly accesses an object in memory. This vulnerability may corrupt memory in such a way that an attacker could execute arbitrary code in the context of the current user.

    Internet Explorer Memory Corruption Vulnerability (CVE-2013-3191) MS Rating: Critical

    A remote code execution vulnerability exists when Internet Explorer improperly accesses an object in memory. This vulnerability may corrupt memory in such a way that an attacker could execute arbitrary code in the context of the current user.

    Internet Explorer Memory Corruption Vulnerability (CVE-2013-3193) MS Rating: Critical

    A remote code execution vulnerability exists when Internet Explorer improperly accesses an object in memory. This vulnerability may corrupt memory in such a way that an attacker could execute arbitrary code in the context of the current user.

    Internet Explorer Memory Corruption Vulnerability (CVE-2013-3194) MS Rating: Critical

    A remote code execution vulnerability exists when Internet Explorer improperly accesses an object in memory. This vulnerability may corrupt memory in such a way that an attacker could execute arbitrary code in the context of the current user.

    Internet Explorer Memory Corruption Vulnerability (CVE-2013-3199) MS Rating: Critical

    A remote code execution vulnerability exists when Internet Explorer improperly accesses an object in memory. This vulnerability may corrupt memory in such a way that an attacker could execute arbitrary code in the context of the current user.

  7. MS13-063 Vulnerability in Windows Kernel Could Allow Security Feature Bypass (2859537)

    ASLR Security Feature Bypass Vulnerability (CVE-2013-2556) MS Rating: Important

    A security feature vulnerability exists in Windows due to the improper implementation of the Address Space Layout Randomization (ASLR). The vulnerability could allow an attacker to bypass the ASLR security feature, most likely during, or in the course of exploiting, a remote code execution vulnerability. The attacker could then load a DLL in the process.

    Windows Kernel Memory Corruption Vulnerability(CVE-2013-3196) MS Rating: Important

    An elevation of privilege vulnerability exists in the Windows kernel due to a memory corruption condition in the NT Virtual DOS Machine (NTVDM). An attacker who successfully exploited this vulnerability could run arbitrary code in kernel mode. An attacker could then install programs, view, change, or delete data, or create new accounts with full user rights.

    Windows Kernel Memory Corruption Vulnerability(CVE-2013-3197) MS Rating: Important

    An elevation of privilege vulnerability exists in the Windows kernel due to a memory corruption condition in the NT Virtual DOS Machine (NTVDM). An attacker who successfully exploited this vulnerability could run arbitrary code in kernel mode. An attacker could then install programs, view, change, or delete data, or create new accounts with full user rights.

    Windows Kernel Memory Corruption Vulnerability(CVE-2013-3198) MS Rating: Important

    An elevation of privilege vulnerability exists in the Windows kernel due to a memory corruption condition in the NT Virtual DOS Machine (NTVDM). An attacker who successfully exploited this vulnerability could run arbitrary code in kernel mode. An attacker could then install programs, view, change, or delete data, or create new accounts with full user rights.

  8. MS13-061 Vulnerabilities in Microsoft Exchange Server Could Allow Remote Code Execution (2876063)

    Oracle Outside In Contains Multiple Exploitable Vulnerabilities (CVE-2013-2393) MS Rating: Critical

    Remote Code Execution vulnerabilities exist in Exchange Server 2007 and Exchange Server 2010 through the WebReady Document Viewing feature. The vulnerabilities could allow a remote code execution as the LocalService account if a user views a specially crafted file through Outlook Web Access in a browser.

    Oracle Outside In Contains Multiple Exploitable Vulnerabilities (CVE-2013-3776) MS Rating: Critical

    Remote Code Execution vulnerabilities exist in Exchange Server 2007 and Exchange Server 2010 through the WebReady Document Viewing feature. The vulnerabilities could allow a remote code execution as the LocalService account if a user views a specially crafted file through Outlook Web Access in a browser.

    Oracle Outside In Contains Multiple Exploitable Vulnerabilities (CVE-2013-3781) MS Rating: Critical

    Remote Code Execution vulnerabilities exist in Exchange Server 2007 and Exchange Server 2010 through the WebReady Document Viewing feature. The vulnerabilities could allow a remote code execution as the LocalService account if a user views a specially crafted file through Outlook Web Access in a browser.

More information on the vulnerabilities being addressed this month is available at Symantec’s free SecurityFocus portal and to our customers through the DeepSight Threat Management System.

Android ??????????????????????

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デジタル署名を無効化することなく攻撃者が正規の Android アプリに悪質なコードをインジェクトできるマスターキー脆弱性が発見されたことは、今月の初めにお伝えしたとおりです。シマンテックは、悪用が容易であることから、この脆弱性がすぐに利用されるだろうと予測していましたが、残念ながらその予測のとおりになっています。

ノートン モバイルインサイト(何百というマーケットプレイスから Android アプリを採取して自動的に解析するシマンテックのシステム)によって、この脆弱性が実際に悪用されている初めての例が検出されたのです。シマンテックは、問題のあるアプリを Android.Skullkey として検出します。

今回、2 つのアプリが悪質な処理に感染していることが確認されました。どちらも、病院を検索して予約できる正規のアプリであり、中国の Android マーケットプレイスで公開されているものです。
 

xxAndroid-MasterKey-1-edit.png   xxAndroid-MasterKey-2-edit.png

図 1. 感染した 2 つのアプリのスクリーンショット
 

攻撃者は両方のアプリを取得して、デバイスのリモート制御、IMEI や電話番号といった重要な情報の窃盗、プレミアム SMS メッセージの送信などを可能にするコードを追加しています。また、いくつかの中国製モバイルセキュリティソフトウェアアプリがインストールされている場合には、ルートコマンドを使ってそれを無効にします。
 

xxAndroid-MasterKey-3-edit.png

図 2. インジェクトされるコードのスニペット
 

攻撃者は、この脆弱性を悪用して元の Android アプリを改変し、新しい classes.dex ファイル(Android アプリのコードを含むファイル)と、新しい Android マニフェストファイル(許可を指定しているファイル)を追加しています。
 

xxAndroid-MasterKey-4-edit.png

図 3. Android アプリのパッケージに含まれるファイル
 

攻撃者は今後も、この脆弱性を悪用して無防備なユーザーのデバイスへの感染を続けると予測されます。アプリは、信頼できる Android アプリマーケットプレイスからのみダウンロードするようにしてください。ノートン モバイルセキュリティを使用すると、他の脅威と同様にこの脅威からも保護することができます。また、Norton Halt(英語版)を使用すると、モバイルデバイスがこの脆弱性の影響を受けやすくなっている場合に警告が表示されます。

 

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First Malicious Use of ‘Master Key’ Android Vulnerability Discovered

Earlier this month, we discussed the discovery of the Master Key vulnerability that allows attackers to inject malicious code into legitimate Android applications without invalidating the digital signature. We expected the vulnerability to be leveraged…

Microsoft Patch Tuesday – July 2013

Hello, welcome to this month’s blog on the Microsoft patch release. This month the vendor is releasing seven bulletins covering a total of 36 vulnerabilities. 24 of this month’s issues are rated ’Critical’.

As always, customers are advised to follow these security best practices:

  • Install vendor patches as soon as they are available.
  • Run all software with the least privileges required while still maintaining functionality.
  • Avoid handling files from unknown or questionable sources.
  • Never visit sites of unknown or questionable integrity.
  • Block external access at the network perimeter to all key systems unless specific access is required.

Microsoft’s summary of the July releases can be found here:
http://technet.microsoft.com/en-us/security/bulletin/ms13-Jul

The following is a breakdown of the issues being addressed this month:

  1. MS13-052 Vulnerabilities in .NET Framework and Silverlight Could Allow Remote Code Execution (2861561)

    TrueType Font Parsing Vulnerability (CVE-2013-3129) MS Rating: Critical

    A remote code execution vulnerability exists in the way that affected components handle specially crafted TrueType font files. The vulnerability could allow a remote code execution if a user opens a specially crafted TrueType font file. An attacker who successfully exploited this vulnerability could take complete control of an affected system. An attacker could then install programs, view, change, or delete data, or create new accounts with full administrative rights.

    Array Access Violation Vulnerability (CVE-2013-3131) MS Rating: Critical

    A remote code execution vulnerability exists in the way the .NET Framework handles multidimensional arrays of small structures.

    Delegate Reflection Bypass Vulnerability (CVE-2013-3132) MS Rating: Important

    An elevation of privilege vulnerability exists in the way that the .NET Framework validates the permissions of certain objects performing reflection. An attacker who successfully exploited this vulnerability could take complete control of an affected system.

    Anonymous Method Injection Vulnerability (CVE-2013-3133) MS Rating: Important

    An elevation of privilege vulnerability exists in the way that the .NET Framework validates permissions for objects involved with reflection.

    Array Allocation Vulnerability (CVE-2013-3134) MS Rating: Critical

    A remote code execution vulnerability exists in the way that the .NET Framework allocates arrays of small structures.

    Delegate Serialization Vulnerability (CVE-2013-3171) MS Rating: Important

    An elevation of privilege vulnerability exists in the way that the .NET Framework validates permissions for delegate objects during serialization.

    Null Pointer Vulnerability (CVE-2013-3178) MS Rating: Important

    A remote code execution vulnerability exists in the way Silverlight handles a null pointer.

  2. MS13-053 Vulnerabilities in Windows Kernel-Mode Drivers Could Allow Remote Code Execution (2850851)

    Win32k Memory Allocation Vulnerability (CVE-2013-1300) MS Rating: Important

    An elevation of privilege vulnerability exists when the Windows kernel-mode driver improperly handles objects in memory. An attacker who successfully exploited this vulnerability could execute arbitrary code with elevated privileges.

    Win32k Dereference Vulnerability (CVE-2013-1340) MS Rating: Important

    An elevation of privilege vulnerability exists in the way that the Windows kernel-mode driver improperly handles objects in memory. An attacker who successfully exploited this vulnerability could execute arbitrary code with elevated privileges.

    Win32k Vulnerability (CVE-2013-1345) MS Rating: Important

    An elevation of privilege vulnerability exists in the way that the Windows kernel-mode driver improperly handles objects in memory. An attacker who successfully exploited this vulnerability could execute arbitrary code with elevated privileges.

    TrueType Font Parsing Vulnerability (CVE-2013-3129) MS Rating: Critical

    A remote code execution vulnerability exists in the way that affected components handle specially crafted TrueType font files. The vulnerability could allow a remote code execution if a user opens a specially crafted TrueType font file. An attacker who successfully exploited this vulnerability could take complete control of an affected system. An attacker could then install programs, view, change, or delete data, or create new accounts with full administrative rights.

    Win32k Use After Free Vulnerability (CVE-2013-3167) MS Rating: Important

    An information disclosure vulnerability exists in the way that the Windows kernel-mode driver improperly handles objects in memory. An attacker who successfully exploited this vulnerability could execute arbitrary code with elevated privileges.

    Win32k Buffer Overflow Vulnerability (CVE-2013-3172) MS Rating: Moderate

    A denial of service vulnerability exists in the way that the Windows kernel-mode driver improperly handles objects in memory. An attacker who successfully exploited this vulnerability could execute arbitrary code with elevated privileges.

    Win32k Buffer Overwrite Vulnerability (CVE-2013-3173) MS Rating: Important

    An elevation of privilege vulnerability exists in the way that the Windows kernel-mode driver improperly handles objects in memory. An attacker who successfully exploited this vulnerability could execute arbitrary code with elevated privileges.

    Win32k Read AV Vulnerability (CVE-2013-3660) MS Rating: Critical

    An elevation of privilege vulnerability exists in the way that the Windows kernel-mode driver improperly handles objects in memory. An attacker who successfully exploited this vulnerability could execute arbitrary code with elevated privileges.

  3. MS13-054 Vulnerability in GDI+ Could Allow Remote Code Execution (2848295)

    TrueType Font Parsing Vulnerability (CVE-2013-3129) MS Rating: Critical

    A vulnerability exists in the way that affected Windows components and other affected software handle specially crafted TrueType font files. The vulnerability could allow a remote code execution if a user opens a specially crafted TrueType font file. An attacker who successfully exploited this vulnerability could take complete control of an affected system. An attacker could then install programs, view, change, or delete data, or create new accounts with full administrative rights.

  4. MS13-055 Cumulative Security Update for Internet Explorer (2846071)

    Internet Explorer Memory Corruption Vulnerability (CVE-2013-3115) MS Rating: Critical

    A remote code execution vulnerability exists when Internet Explorer improperly accesses an object in memory. This vulnerability may corrupt memory in such a way that an attacker could execute arbitrary code in the context of the current user.

    Internet Explorer Memory Corruption Vulnerability (CVE-2013-3143) MS Rating: Critical

    A remote code execution vulnerability exists when Internet Explorer improperly accesses an object in memory. This vulnerability may corrupt memory in such a way that an attacker could execute arbitrary code in the context of the current user.

    Internet Explorer Memory Corruption Vulnerability (CVE-2013-3144) MS Rating: Critical

    A remote code execution vulnerability exists when Internet Explorer improperly accesses an object in memory. This vulnerability may corrupt memory in such a way that an attacker could execute arbitrary code in the context of the current user.

    Internet Explorer Memory Corruption Vulnerability (CVE-2013-3145) MS Rating: Critical

    A remote code execution vulnerability exists when Internet Explorer improperly accesses an object in memory. This vulnerability may corrupt memory in such a way that an attacker could execute arbitrary code in the context of the current user.

    Internet Explorer Memory Corruption Vulnerability (CVE-2013-3146) MS Rating: Critical

    A remote code execution vulnerability exists when Internet Explorer improperly accesses an object in memory. This vulnerability may corrupt memory in such a way that an attacker could execute arbitrary code in the context of the current user.

    Internet Explorer Memory Corruption Vulnerability (CVE-2013-3147) MS Rating: Critical

    A remote code execution vulnerability exists when Internet Explorer improperly accesses an object in memory. This vulnerability may corrupt memory in such a way that an attacker could execute arbitrary code in the context of the current user.

    Internet Explorer Memory Corruption Vulnerability (CVE-2013-3148) MS Rating: Critical

    A remote code execution vulnerability exists when Internet Explorer improperly accesses an object in memory. This vulnerability may corrupt memory in such a way that an attacker could execute arbitrary code in the context of the current user.

    Internet Explorer Memory Corruption Vulnerability (CVE-2013-3149) MS Rating: Critical

    A remote code execution vulnerability exists when Internet Explorer improperly accesses an object in memory. This vulnerability may corrupt memory in such a way that an attacker could execute arbitrary code in the context of the current user.

    Internet Explorer Memory Corruption Vulnerability (CVE-2013-3150) MS Rating: Critical

    A remote code execution vulnerability exists when Internet Explorer improperly accesses an object in memory. This vulnerability may corrupt memory in such a way that an attacker could execute arbitrary code in the context of the current user.

    Internet Explorer Memory Corruption Vulnerability (CVE-2013-3151) MS Rating: Critical

    A remote code execution vulnerability exists when Internet Explorer improperly accesses an object in memory. This vulnerability may corrupt memory in such a way that an attacker could execute arbitrary code in the context of the current user.

    Internet Explorer Memory Corruption Vulnerability (CVE-2013-3152) MS Rating: Critical

    A remote code execution vulnerability exists when Internet Explorer improperly accesses an object in memory. This vulnerability may corrupt memory in such a way that an attacker could execute arbitrary code in the context of the current user.

    Internet Explorer Memory Corruption Vulnerability (CVE-2013-3153) MS Rating: Critical

    A remote code execution vulnerability exists when Internet Explorer improperly accesses an object in memory. This vulnerability may corrupt memory in such a way that an attacker could execute arbitrary code in the context of the current user.

    Internet Explorer Memory Corruption Vulnerability (CVE-2013-3161) MS Rating: Critical

    A remote code execution vulnerability exists when Internet Explorer improperly accesses an object in memory. This vulnerability may corrupt memory in such a way that an attacker could execute arbitrary code in the context of the current user.

    Internet Explorer Memory Corruption Vulnerability (CVE-2013-3162) MS Rating: Critical

    A remote code execution vulnerability exists when Internet Explorer improperly accesses an object in memory. This vulnerability may corrupt memory in such a way that an attacker could execute arbitrary code in the context of the current user.

    Internet Explorer Memory Corruption Vulnerability (CVE-2013-3163) MS Rating: Critical

    A remote code execution vulnerability exists when Internet Explorer improperly accesses an object in memory. This vulnerability may corrupt memory in such a way that an attacker could execute arbitrary code in the context of the current user.

    Internet Explorer Memory Corruption Vulnerability (CVE-2013-3164) MS Rating: Critical

    A remote code execution vulnerability exists when Internet Explorer improperly accesses an object in memory. This vulnerability may corrupt memory in such a way that an attacker could execute arbitrary code in the context of the current user.

    Shift JIS Character Encoding Vulnerability (CVE-2013-3166) MS Rating: Important

    A cross-site-scripting (XSS) vulnerability exists in Internet Explorer that could allow an attacker to gain access to information in another domain or Internet Explorer zone. An attacker could exploit the vulnerability by constructing a specially crafted webpage that could allow an information disclosure if a user viewed the webpage. An attacker who successfully exploited this vulnerability could view content from another domain or Internet Explorer zone.

  5. MS13-056 Vulnerability in Microsoft DirectShow Could Allow Remote Code Execution (2845187)

    DirectShow Arbitrary Memory Overwrite Vulnerability (CVE-2013-3174) MS Rating: Critical

    A remote code execution vulnerability exists in the way that Microsoft DirectShow parses GIF image files. This vulnerability could allow a remote code execution if a user opened a specially crafted GIF file. If a user is logged on with administrative user rights, an attacker who successfully exploited this vulnerability could take complete control of an affected system. An attacker could then install programs, view, change, or delete data, or create new accounts with full user rights. Users whose accounts are configured to have fewer user rights on the system could be less impacted than users who operate with administrative user rights.

  6. MS13-057 Vulnerability in Windows Media Format Runtime Could Allow Remote Code Execution (2847883)

    WMV Video Decoder Remote Code Execution Vulnerability (CVE-2013-3127) MS Rating: Critical

    A remote code execution vulnerability exists in the way Windows Media Format Runtime handles certain media files. This vulnerability could allow an attacker to execute arbitrary code if the attacker convinces a user to open a specially crafted media file. An attacker could then install programs, view, change, or delete data, or create new accounts with full user rights.

  7. MS13-058 Vulnerability in Windows Defender Could Allow Elevation of Privilege (2847927)

    Microsoft Windows 7 Defender Improper Pathname Vulnerability (CVE-2013-3154) MS Rating: Important

    This is an elevation of privilege vulnerability. An attacker who successfully exploited this vulnerability could execute arbitrary code in the security context of the LocalSystem account and take complete control of the system. An attacker could then install programs, view, change, or delete data, or create new accounts with full user rights. An attacker must have valid logon credentials to exploit this vulnerability. The vulnerability could not be exploited by anonymous users.

More information on the vulnerabilities being addressed this month is available at Symantec’s free SecurityFocus portal and to our customers through the DeepSight Threat Management System.

Targeted Attack Exploits Ichitaro Vulnerability

JustSystems, developer of the Japanese word processor software called Ichitaro, recently announced a vulnerability (CVE-2013-3644) that has been exploited in the wild. Symantec has seen the exploitation being used in targeted attacks since May, but it…

Microsoft Office ???? CVE-2013-1331 ??????

脆弱性が発見されてから悪用が出現するまでの時間は、ますます短くなっています。ときには、数時間ということさえあります。そのため、IT マネージャは実働システムへのパッチ適用を急がされ、品質保証に必要な設定管理やベストプラクティスに抵触してしまいます。新しいパッチや更新を常にリリースし続けることに四苦八苦している企業も少なくありません。

今月の第 2 火曜日、2013 年 6 月 11 日に、Microsoft 社は多くの脆弱性を対象とするセキュリティ情報(MS13-051)を公開しました。報告によると、その脆弱性のひとつが標的型攻撃に悪用されています。攻撃者は、スピア型フィッシング攻撃の一環として、特別に細工した添付ファイルを送信してこの脆弱性を悪用できてしまいます。

Microsoft Office の PNG ファイルに存在するバッファオーバーフローの脆弱性(CVE-2013-1331)、すなわち Microsoft Office に存在するリモートスタックベースのバッファオーバーフローの脆弱性によって、リモートでコードが実行されます。これは、Microsoft Office 2011 for Mac と、全 Windows プラットフォーム向けの Microsoft Office 2003 に影響することが確認されています。

シマンテックは現在、この脆弱性に対して以下の検出定義を用意しています。

ウイルス対策定義

侵入防止シグネチャ

  • Web Attack: Microsoft Office CVE-2013-1331 2
  • System Infected: Trojan Backdoor Activity 12

シマンテックは保護対策を強化するために、この脅威を継続的に監視し、対応ができしだい、該当の更新を提供する予定です。ウイルス定義対策を定期的に更新し、以下の Microsoft 製品の最新パッチをインストールすることをお勧めします。

 

* 日本語版セキュリティレスポンスブログの RSS フィードを購読するには、http://www.symantec.com/connect/ja/item-feeds/blog/2261/feed/all/ja にアクセスしてください。

Microsoft Office CVE-2013-1331 Coverage

The time between discovery of a vulnerability and the emergence of an exploit keeps getting shorter—sometimes a matter of only hours. This increases pressure on IT managers to rapidly patch production systems in conflict with configuration manage…

?????????????Microsoft Patch Tuesday?- 2013 ? 6 ?

今月のマイクロソフトパッチリリースブログをお届けします。今月は、23 件の脆弱性を対象として 5 つのセキュリティ情報がリリースされています。このうち 19 件が「緊急」レベルです。

いつものことですが、ベストプラクティスとして以下のセキュリティ対策を講じることを推奨します。

  • ベンダーのパッチが公開されたら、できるだけ速やかにインストールする。
  • ソフトウェアはすべて、必要な機能を使える最小限の権限で実行する。
  • 未知の、または疑わしいソースからのファイルは扱わない。
  • 整合性が未知の、または疑わしいサイトには絶対にアクセスしない。
  • 特定のアクセスが必要な場合を除いて、ネットワークの周辺部では重要なシステムへの外部からのアクセスを遮断する。

マイクロソフトの 6 月のリリースに関する概要は、次のページで公開されています。
http://technet.microsoft.com/ja-jp/security/bulletin/ms13-Jun

今月のパッチで対処されている問題の一部について、詳しい情報を以下に示します。

  1. MS13-047 Internet Explorer 用の累積的なセキュリティ更新プログラム(2838727)

    Internet Explorer のメモリ破損の脆弱性(CVE-2013-3110)MS の深刻度: 緊急

    Internet Explorer のメモリ内のオブジェクトへのアクセスが不適切な場合に、リモートコード実行の脆弱性が存在します。この脆弱性によってメモリが破損し、攻撃者が現在のユーザーのコンテキストで任意のコードを実行できる場合があります。

    Internet Explorer のメモリ破損の脆弱性(CVE-2013-3111)MS の深刻度: 緊急

    Internet Explorer のメモリ内のオブジェクトへのアクセスが不適切な場合に、リモートコード実行の脆弱性が存在します。この脆弱性によってメモリが破損し、攻撃者が現在のユーザーのコンテキストで任意のコードを実行できる場合があります。

    Internet Explorer のメモリ破損の脆弱性(CVE-2013-3112)MS の深刻度: 緊急

    Internet Explorer のメモリ内のオブジェクトへのアクセスが不適切な場合に、リモートコード実行の脆弱性が存在します。この脆弱性によってメモリが破損し、攻撃者が現在のユーザーのコンテキストで任意のコードを実行できる場合があります。

    Internet Explorer のメモリ破損の脆弱性(CVE-2013-3113)MS の深刻度: 緊急

    Internet Explorer のメモリ内のオブジェクトへのアクセスが不適切な場合に、リモートコード実行の脆弱性が存在します。この脆弱性によってメモリが破損し、攻撃者が現在のユーザーのコンテキストで任意のコードを実行できる場合があります。

    Internet Explorer のメモリ破損の脆弱性(CVE-2013-3114)MS の深刻度: 緊急

    Internet Explorer のメモリ内のオブジェクトへのアクセスが不適切な場合に、リモートコード実行の脆弱性が存在します。この脆弱性によってメモリが破損し、攻撃者が現在のユーザーのコンテキストで任意のコードを実行できる場合があります。

    Internet Explorer のメモリ破損の脆弱性(CVE-2013-3116)MS の深刻度: 緊急

    Internet Explorer のメモリ内のオブジェクトへのアクセスが不適切な場合に、リモートコード実行の脆弱性が存在します。この脆弱性によってメモリが破損し、攻撃者が現在のユーザーのコンテキストで任意のコードを実行できる場合があります。

    Internet Explorer のメモリ破損の脆弱性(CVE-2013-3117)MS の深刻度: 緊急

    Internet Explorer のメモリ内のオブジェクトへのアクセスが不適切な場合に、リモートコード実行の脆弱性が存在します。この脆弱性によってメモリが破損し、攻撃者が現在のユーザーのコンテキストで任意のコードを実行できる場合があります。

    Internet Explorer のメモリ破損の脆弱性(CVE-2013-3118)MS の深刻度: 緊急

    Internet Explorer のメモリ内のオブジェクトへのアクセスが不適切な場合に、リモートコード実行の脆弱性が存在します。この脆弱性によってメモリが破損し、攻撃者が現在のユーザーのコンテキストで任意のコードを実行できる場合があります。

    Internet Explorer のメモリ破損の脆弱性(CVE-2013-3119)MS の深刻度: 緊急

    Internet Explorer のメモリ内のオブジェクトへのアクセスが不適切な場合に、リモートコード実行の脆弱性が存在します。この脆弱性によってメモリが破損し、攻撃者が現在のユーザーのコンテキストで任意のコードを実行できる場合があります。

    Internet Explorer のメモリ破損の脆弱性(CVE-2013-3120)MS の深刻度: 緊急

    Internet Explorer のメモリ内のオブジェクトへのアクセスが不適切な場合に、リモートコード実行の脆弱性が存在します。この脆弱性によってメモリが破損し、攻撃者が現在のユーザーのコンテキストで任意のコードを実行できる場合があります。

    Internet Explorer のメモリ破損の脆弱性(CVE-2013-3121)MS の深刻度: 緊急

    Internet Explorer のメモリ内のオブジェクトへのアクセスが不適切な場合に、リモートコード実行の脆弱性が存在します。この脆弱性によってメモリが破損し、攻撃者が現在のユーザーのコンテキストで任意のコードを実行できる場合があります。

    Internet Explorer のメモリ破損の脆弱性(CVE-2013-3122)MS の深刻度: 緊急

    Internet Explorer のメモリ内のオブジェクトへのアクセスが不適切な場合に、リモートコード実行の脆弱性が存在します。この脆弱性によってメモリが破損し、攻撃者が現在のユーザーのコンテキストで任意のコードを実行できる場合があります。

    Internet Explorer のメモリ破損の脆弱性(CVE-2013-3123)MS の深刻度: 緊急

    Internet Explorer のメモリ内のオブジェクトへのアクセスが不適切な場合に、リモートコード実行の脆弱性が存在します。この脆弱性によってメモリが破損し、攻撃者が現在のユーザーのコンテキストで任意のコードを実行できる場合があります。

    Internet Explorer のメモリ破損の脆弱性(CVE-2013-3124)MS の深刻度: 緊急

    Internet Explorer のメモリ内のオブジェクトへのアクセスが不適切な場合に、リモートコード実行の脆弱性が存在します。この脆弱性によってメモリが破損し、攻撃者が現在のユーザーのコンテキストで任意のコードを実行できる場合があります。

    Internet Explorer のメモリ破損の脆弱性(CVE-2013-3125)MS の深刻度: 緊急

    Internet Explorer のメモリ内のオブジェクトへのアクセスが不適切な場合に、リモートコード実行の脆弱性が存在します。この脆弱性によってメモリが破損し、攻撃者が現在のユーザーのコンテキストで任意のコードを実行できる場合があります。

    Internet Explorer スクリプトデバッグの脆弱性(CVE-2013-3126)MS の深刻度: 緊急

    Web ページのデバッグ中に Internet Explorer のスクリプト処理が不適切な場合に、リモートコード実行の脆弱性が存在します。この脆弱性によってメモリが破損し、攻撃者が Internet Explorer における現在のユーザーのコンテキストで任意のコードを実行できる場合があります。攻撃者は Internet Explorer を介して、この脆弱性の悪用を目的として特別に細工した Web サイトをホストし、ユーザーを誘導してその Web サイトを表示させる可能性があります。

    Internet Explorer のメモリ破損の脆弱性(CVE-2013-3139)MS の深刻度: 緊急

    Internet Explorer のメモリ内のオブジェクトへのアクセスが不適切な場合に、リモートコード実行の脆弱性が存在します。この脆弱性によってメモリが破損し、攻撃者が現在のユーザーのコンテキストで任意のコードを実行できる場合があります。

    Internet Explorer のメモリ破損の脆弱性(CVE-2013-3141)MS の深刻度: 緊急

    Internet Explorer のメモリ内のオブジェクトへのアクセスが不適切な場合に、リモートコード実行の脆弱性が存在します。この脆弱性によってメモリが破損し、攻撃者が現在のユーザーのコンテキストで任意のコードを実行できる場合があります。

    Internet Explorer のメモリ破損の脆弱性(CVE-2013-3142)MS の深刻度: 緊急

    Internet Explorer のメモリ内のオブジェクトへのアクセスが不適切な場合に、リモートコード実行の脆弱性が存在します。この脆弱性によってメモリが破損し、攻撃者が現在のユーザーのコンテキストで任意のコードを実行できる場合があります。

  2. MS13-048 Windows カーネルの脆弱性により、情報漏えいが起こる(2839229)

    カーネルの情報漏えいの脆弱性(CVE-2013-3136)MS の深刻度: 重要

    Windows カーネルがメモリ内のオブジェクトを正しく処理しない場合に、情報漏えいの脆弱性が存在します。攻撃者がこの脆弱性の悪用に成功すると、カーネルアドレスから情報漏えいを起こす可能性があります。

  3. MS13-049 カーネルモードドライバの脆弱性により、サービス拒否が起こる(2845690)

    TCP/IP の整数オーバーフローの脆弱性(CVE-2013-3138)MS の深刻度: 重要

    TCP 接続中に Windows TCP/IP ドライバがパケットを正しく処理しない場合に、サービス拒否の脆弱性が存在します。攻撃者がこの脆弱性の悪用に成功すると、標的となるシステムが応答を停止する可能性があります。

  4. MS13-050 Windows 印刷スプーラコンポーネントの脆弱性により、特権が昇格される(2839894)

    印刷スプーラの脆弱性(CVE-2013-1339)MS の深刻度: 重要

    プリンタが削除されたときに Microsoft Windows 印刷スプーラがメモリを処理する方法に、特権昇格の脆弱性が存在します。

  5. MS13-051 Microsoft Office の脆弱性により、リモートでコードが実行される(2839571)

    Office のバッファオーバーフローの脆弱性(CVE-2013-1331)MS の深刻度: 重要

    Microsoft Office が、特別に細工された Office ファイルを処理する方法に、リモートコード実行の脆弱性が存在します。攻撃者がこの脆弱性の悪用に成功すると、影響を受けるシステムを完全に制御できる恐れがあります。攻撃者はその後、プログラムのインストール、データの表示、変更、削除、完全なユーザー権限を持つ新しいアカウントの作成ができる場合があります。システムでのユーザー権限が低い設定のアカウントを持つユーザーは、管理者のユーザー権限で実行しているユーザーよりもこの脆弱性による影響が少ないと考えられます。

今月対処されている脆弱性についての詳しい情報は、シマンテックが無償で公開している SecurityFocus ポータルでご覧いただくことができ、製品をご利用のお客様は DeepSight Threat Management System を通じても情報を入手できます。

 

* 日本語版セキュリティレスポンスブログの RSS フィードを購読するには、http://www.symantec.com/connect/ja/item-feeds/blog/2261/feed/all/ja にアクセスしてください。

Microsoft Patch Tuesday – June 2013

Hello, welcome to this month’s blog on the Microsoft patch release. This month the vendor is releasing five bulletins covering a total of 23 vulnerabilities. Nineteen of this month’s issues are rated ’Critical’.

As always, customers are advised to follow these security best practices:

  • Install vendor patches as soon as they are available.
  • Run all software with the least privileges required while still maintaining functionality.
  • Avoid handling files from unknown or questionable sources.
  • Never visit sites of unknown or questionable integrity.
  • Block external access at the network perimeter to all key systems unless specific access is required.

Microsoft’s summary of the June releases can be found here:
http://technet.microsoft.com/en-us/security/bulletin/ms13-Jun

The following is a breakdown of the issues being addressed this month:

  1. MS13-047 Cumulative Security Update for Internet Explorer (2838727)

    Internet Explorer Memory Corruption Vulnerability (CVE-2013-3110) MS Rating: Critical

    A remote code execution vulnerability exists when Internet Explorer improperly accesses an object in memory. This vulnerability may corrupt memory in such a way that an attacker could execute arbitrary code in the context of the current user.

    Internet Explorer Memory Corruption Vulnerability (CVE-2013-3111) MS Rating: Critical

    A remote code execution vulnerability exists when Internet Explorer improperly accesses an object in memory. This vulnerability may corrupt memory in such a way that an attacker could execute arbitrary code in the context of the current user.

    Internet Explorer Memory Corruption Vulnerability (CVE-2013-3112) MS Rating: Critical

    A remote code execution vulnerability exists when Internet Explorer improperly accesses an object in memory. This vulnerability may corrupt memory in such a way that an attacker could execute arbitrary code in the context of the current user.

    Internet Explorer Memory Corruption Vulnerability (CVE-2013-3113) MS Rating: Critical

    A remote code execution vulnerability exists when Internet Explorer improperly accesses an object in memory. This vulnerability may corrupt memory in such a way that an attacker could execute arbitrary code in the context of the current user.

    Internet Explorer Memory Corruption Vulnerability (CVE-2013-3114) MS Rating: Critical

    A remote code execution vulnerability exists when Internet Explorer improperly accesses an object in memory. This vulnerability may corrupt memory in such a way that an attacker could execute arbitrary code in the context of the current user.

    Internet Explorer Memory Corruption Vulnerability (CVE-2013-3116) MS Rating: Critical

    A remote code execution vulnerability exists when Internet Explorer improperly accesses an object in memory. This vulnerability may corrupt memory in such a way that an attacker could execute arbitrary code in the context of the current user.

    Internet Explorer Memory Corruption Vulnerability (CVE-2013-3117) MS Rating: Critical

    A remote code execution vulnerability exists when Internet Explorer improperly accesses an object in memory. This vulnerability may corrupt memory in such a way that an attacker could execute arbitrary code in the context of the current user.

    Internet Explorer Memory Corruption Vulnerability (CVE-2013-3118) MS Rating: Critical

    A remote code execution vulnerability exists when Internet Explorer improperly accesses an object in memory. This vulnerability may corrupt memory in such a way that an attacker could execute arbitrary code in the context of the current user.

    Internet Explorer Memory Corruption Vulnerability (CVE-2013-3119) MS Rating: Critical

    A remote code execution vulnerability exists when Internet Explorer improperly accesses an object in memory. This vulnerability may corrupt memory in such a way that an attacker could execute arbitrary code in the context of the current user.

    Internet Explorer Memory Corruption Vulnerability (CVE-2013-3120) MS Rating: Critical

    A remote code execution vulnerability exists when Internet Explorer improperly accesses an object in memory. This vulnerability may corrupt memory in such a way that an attacker could execute arbitrary code in the context of the current user.

    Internet Explorer Memory Corruption Vulnerability (CVE-2013-3121) MS Rating: Critical

    A remote code execution vulnerability exists when Internet Explorer improperly accesses an object in memory. This vulnerability may corrupt memory in such a way that an attacker could execute arbitrary code in the context of the current user.

    Internet Explorer Memory Corruption Vulnerability (CVE-2013-3122) MS Rating: Critical

    A remote code execution vulnerability exists when Internet Explorer improperly accesses an object in memory. This vulnerability may corrupt memory in such a way that an attacker could execute arbitrary code in the context of the current user.

    Internet Explorer Memory Corruption Vulnerability (CVE-2013-3123) MS Rating: Critical

    A remote code execution vulnerability exists when Internet Explorer improperly accesses an object in memory. This vulnerability may corrupt memory in such a way that an attacker could execute arbitrary code in the context of the current user.

    Internet Explorer Use After Free Vulnerability (CVE-2013-3124) MS Rating: Critical

    A remote code execution vulnerability exists when Internet Explorer improperly accesses an object in memory. This vulnerability may corrupt memory in such a way that an attacker could execute arbitrary code in the context of the current user.

    Internet Explorer Use After Free Vulnerability (CVE-2013-3125) MS Rating: Critical

    A remote code execution vulnerability exists when Internet Explorer improperly accesses an object in memory. This vulnerability may corrupt memory in such a way that an attacker could execute arbitrary code in the context of the current user.

    Internet Explorer Script Debug Vulnerability (CVE-2013-3126) MS Rating: Critical

    A remote code execution vulnerability exists when Internet Explorer improperly processes script while debugging a webpage. The vulnerability may corrupt memory in a way that could allow an attacker to execute arbitrary code in the context of the current user within Internet Explorer. An attacker could host a specially crafted website that is designed to exploit this vulnerability through Internet Explorer and then convince a user to view the website.

    Internet Explorer Memory Corruption Vulnerability (CVE-2013-3139) MS Rating: Critical

    A remote code execution vulnerability exists when Internet Explorer improperly accesses an object in memory. This vulnerability may corrupt memory in such a way that an attacker could execute arbitrary code in the context of the current user.

    Internet Explorer Memory Corruption Vulnerability (CVE-2013-3141) MS Rating: Critical

    A remote code execution vulnerability exists when Internet Explorer improperly accesses an object in memory. This vulnerability may corrupt memory in such a way that an attacker could execute arbitrary code in the context of the current user.

    Internet Explorer Memory Corruption Vulnerability (CVE-2013-3142) MS Rating: Critical

    A remote code execution vulnerability exists when Internet Explorer improperly accesses an object in memory. This vulnerability may corrupt memory in such a way that an attacker could execute arbitrary code in the context of the current user.

  2. MS13-048 Vulnerability in Windows Kernel Could Allow Information Disclosure (2839229)

    Kernel Information Disclosure Vulnerability (CVE-2013-3136) MS Rating: Important

    An information disclosure vulnerability exists when the Windows kernel improperly handles objects in memory. An attacker who successfully exploited this vulnerability could disclose information from kernel addresses.

  3. MS13-049 Vulnerability in Kernel-Mode Driver Could Allow Denial of Service (2845690)

    TCP/IP Integer Overflow Vulnerability (CVE-2013-3138) MS Rating: Important

    A denial of service vulnerability exists in the way that the Windows TCP/IP driver improperly handles packets during TCP connection. An attacker who successfully exploited this vulnerability could cause the target system to stop responding.

  4. MS13-050 Vulnerability in Windows Print Spooler Components Could Allow Elevation of Privilege (2839894)

    Print Spooler Vulnerability (CVE-2013-1339) MS Rating: Important

    An elevation of privilege vulnerability exists in the way that Microsoft Windows Print Spooler handles memory when a printer is deleted.

  5. MS13-051 Vulnerability in Microsoft Office Could Allow Remote Code Execution (2839571)

    Office Buffer Overflow Vulnerability (CVE-2013-1331) MS Rating: Important

    A remote code execution vulnerability exists in the way that Microsoft Office parses specially crafted Office files. An attacker who successfully exploited this vulnerability could take complete control of an affected system. An attacker could then install programs, view, change, or delete data, or create new accounts with full user rights. Users whose accounts are configured to have fewer user rights on the system could be less impacted than users who operate with administrative user rights.

More information on the vulnerabilities being addressed this month is available at Symantec’s free SecurityFocus portal and to our customers through the DeepSight Threat Management System.