SB2010091401 - Remote code execution in Print Spooler service in Microsoft Windows

Description

This security bulletin contains information about 1 security vulnerability.

1) Improper access control (CVE-ID: CVE-2010-2729)

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to Windows Print Spooler service does not correctly restricts access permissions to create files for anonymous users. A remote attacker can send specially crafted RPC request to vulnerable service and upload malicious file to arbitrary location on the system.

This is a remote code execution vulnerability on Windows XP, since the guest account is enabled by default. On other operating systems this is a privilege escalation vulnerability, as only authenticated users have access to Print Spooler shares.

Successful exploitation of the vulnerability may result in remote code execution.

Note: this vulnerability is being actively exploited.

Remediation

Install update from vendor's website.

References

• https://technet.microsoft.com/en-us/library/security/ms10-061.aspx
• https://securelist.com/blog/incidents/29747/myrtus-and-guava-episode-ms10-061/
• https://www.symantec.com/connect/blogs/stuxnet-using-three-additional-zero-day-vulnerabilities