PT-2011-2538 · Microsoft · Windows Vista+5

Published 2011-04-13 · Updated 2023-12-07 · CVE-2011-0661

Positive Technologies (AI Summary)

CVSS v2.0

10

High

Base vector

AV:N/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 validation of fields in SMB requests by the SMB Server service, allowing remote attackers to execute arbitrary code via a malformed request in an SMBv1 or SMBv2 packet. This is an unauthenticated remote code execution issue, where an attacker can exploit the vulnerability by sending a specially crafted SMB packet to a computer running the Server service, potentially taking complete control of the system.

Recommendations For Microsoft Windows XP versions SP2 through SP3, update to a newer version that includes the fix for this issue. For Microsoft Windows Server 2003 version SP2, update to a newer version that includes the fix for this issue. For Microsoft Windows Vista versions SP1 through SP2, update to a newer version that includes the fix for this issue. For Microsoft Windows Server 2008 versions Gold through R2 SP1, update to a newer version that includes the fix for this issue. For Microsoft Windows 7 versions Gold through SP1, update to a newer version that includes the fix for this issue. As a temporary workaround, consider restricting access to the SMB Server service until a patch is available.

Fix

RCE

Weakness Enumeration

CWE-20

Related Identifiers

CVE-2011-0661

Affected Products

Windows

Windows 7

Windows Server 2003

Windows Server 2008

Windows Vista

Windows Xp

References · 11

• https://docs.microsoft.com/en-us/security-updates/securitybulletins/2011/ms11-020 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2011-0661 · Security Note
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2011-0661 · Security Note
• http://osvdb.org/71781 · Note
• https://docs.microsoft.com/security-updates/securitybulletins/2011/MS11-020 · Note
• http://securityfocus.com/bid/47198 · Note
• http://securitytracker.com/id?1025329 · Note
• https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A12076 · Note
• http://us-cert.gov/cas/techalerts/TA11-102A.html · Note
• http://vupen.com/english/advisories/2011/0939 · Note
• http://secunia.com/advisories/44072 · Note