Sid 1-29823

Message

OS-WINDOWS Microsoft Windows secure channel malformed certificate request memory corruption attempt

Summary

The Secure Channel (aka SChannel) security package in Microsoft Windows XP SP2 and SP3, and Windows Server 2003 SP2, does not properly validate certificate request messages from TLS and SSL servers, which allows remote servers to execute arbitrary code via a crafted SSL response, aka "SChannel Malformed Certificate Request Remote Code Execution Vulnerability."

Impact

CVSS base score 9.3 CVSS impact score 10.0 CVSS exploitability score 8.6 confidentialityImpact COMPLETE integrityImpact COMPLETE availabilityImpact COMPLETE

CVE-2010-2566:

CVSS base score 9.3

CVSS impact score 10.0

CVSS exploitability score 8.6

Confidentiality Impact COMPLETE

Integrity Impact COMPLETE

Availability Impact COMPLETE

Detailed information

CVE-2010-2566: The Secure Channel (aka SChannel) security package in Microsoft Windows XP SP2 and SP3, and Windows Server 2003 SP2, does not properly validate certificate request messages from TLS and SSL servers, which allows remote servers to execute arbitrary code via a crafted SSL response, aka "SChannel Malformed Certificate Request Remote Code Execution Vulnerability."

Affected systems

• microsoft windows2003server *
• microsoft windowsserver2003 *
• microsoft windows_xp *
• microsoft windows_xp -

Ease of attack

CVE-2010-2566:

Access Vector NETWORK

Access Complexity MEDIUM

Authentication NONE

False positives

None known

False negatives

None known

Corrective action

Upgrade to the latest non-affected version of the software.

Apply the appropriate vendor supplied patches.

Contributors

• Talos research team.
• This document was generated from data supplied by the national vulnerability database, a product of the national institute of standards and technology.
• For more information see nvd.

Additional References

• osvdb.org/show/osvdb/66987
• technet.microsoft.com/en-us/security/bulletin/MS10-049