PT-2011-3017 · Microsoft · Windows Vista+5

Published 2011-07-13 · Updated 2023-12-07 · CVE-2011-1281

Positive Technologies (AI Summary)

CVSS v2.0

7.2

High

Base vector

AV:L/AC:L/Au:N/C:C/I:C/A:C

Name of the Vulnerable Software and Affected Versions Microsoft Windows XP versions SP2 through SP3 Microsoft Windows Server 2003 version SP2 Microsoft Windows Vista versions SP1 through SP2 Microsoft Windows Server 2008 versions Gold through R2 SP1 Microsoft Windows 7 versions Gold through SP1

Description The issue arises from the improper restriction of console objects for a process in the Client/Server Run-time Subsystem (CSRSS) of the Win32 subsystem. This allows local users to potentially gain privileges or cause a denial of service due to memory corruption. The vulnerability is related to the way CSRSS assigns memory for specific user transactions, which could allow an attacker to run arbitrary code in kernel mode. This could enable an attacker to install programs, view, change, or delete data, or create new accounts with full user rights.

Recommendations For Microsoft Windows XP versions SP2 through SP3, apply the recommended patch to fix the CSRSS Local EOP AllocConsole Vulnerability. For Microsoft Windows Server 2003 version SP2, apply the recommended patch to fix the CSRSS Local EOP AllocConsole Vulnerability. For Microsoft Windows Vista versions SP1 through SP2, apply the recommended patch to fix the CSRSS Local EOP AllocConsole Vulnerability. For Microsoft Windows Server 2008 versions Gold through R2 SP1, apply the recommended patch to fix the CSRSS Local EOP AllocConsole Vulnerability. For Microsoft Windows 7 versions Gold through SP1, apply the recommended patch to fix the CSRSS Local EOP AllocConsole Vulnerability. As a temporary workaround, consider restricting access to the CSRSS subsystem to minimize the risk of exploitation.

Fix

DoS

Buffer Overflow

Weakness Enumeration

CWE-119

Related Identifiers

CVE-2011-1281

Affected Products

Windows

Windows 7

Windows Server 2003

Windows Server 2008

Windows Vista

Windows Xp

References · 6

• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2011-1281 · Security Note
• https://docs.microsoft.com/en-us/security-updates/securitybulletins/2011/ms11-056 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2011-1281 · Security Note
• http://us-cert.gov/cas/techalerts/TA11-193A.html · Note
• https://docs.microsoft.com/security-updates/securitybulletins/2011/MS11-056 · Note
• https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A12602 · Note