Microsoft Windows Servers License Logging service code execution

win-license-code-execution (19101) The risk level is classified as HighHigh Risk

Description:

Microsoft Windows could allow a remote attacker to execute arbitrary code on the system, caused by improper bounds checking in the License Logging service. The License Logging service is a tool for managing Server Client Access Licenses (CAL). A remote attacker could exploit this vulnerability to execute arbitrary code on the system.

Note: By default, in Windows Server 2003, the License Logging service is disabled.

Platforms Affected:

  • Microsoft, Windows 2000 SP3 Server
  • Microsoft, Windows 2000 SP4 Server
  • Microsoft, Windows 2003 Server
  • Microsoft, Windows 2003 Server Itanium
  • Microsoft, Windows NT 4.0 SP6a Server
  • Microsoft, Windows NT 4.0 SP6 Terminal Server

Remedy:

For vulnerability detection:

Enable the following checks in the ISS Protection platform:
WinMs05kb885834Update

For Virtual Patch:

Enable the following checks in the Dynamic ISS Protection platform:
MSRPC_LLS_Bo

For Manual Protection:

Apply the appropriate patch for your system, as listed in Microsoft Security Bulletin MS05-010. See References.

Consequences:

Gain Access

References:

  • CIAC Information Bulletin P-132, Microsoft Vulnerability in the License Logging Service at http://www.ciac.org/ciac/bulletins/p-132.shtml.
  • Internet Security Systems Protection Alert February 8, 2005, Multiple Vulnerabilities in Microsoft Products - February 2005 at http://xforce.iss.net/xforce/alerts/id/186.
  • Microsoft Security Bulletin MS05-010, Vulnerability in the License Logging Service Could Allow Code Execution (885834) at http://www.microsoft.com/technet/security/bulletin/ms05-010.mspx.
  • BID-12481: Microsoft Windows License Logging Service Buffer Overflow Vulnerability
  • CVE-2005-0050: The License Logging service for Windows NT Server, Windows 2000 Server, and Windows Server 2003 does not properly validate the length of messages, which leads to an unchecked buffer and allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code, aka the License Logging Service Vulnerability.
  • US-CERT VU#130433: Microsoft License Logging Service buffer overflow

Reported:

Feb 08, 2005

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