====================================================================== Secunia Research 10/04/2007 - Microsoft Agent URL Parsing Memory Corruption Vulnerability - ====================================================================== Table of Contents Affected Software....................................................1 Severity.............................................................2 Description of Vulnerability.........................................3 Solution.............................................................4 Time Table...........................................................5 Credits..............................................................6 References...........................................................7 About Secunia........................................................8 Verification.........................................................9 ====================================================================== 1) Affected Software * Windows 2000 SP4 * Windows XP SP2 * Windows Server 2003 SP2 NOTE: Other versions may also be affected. ====================================================================== 2) Severity Rating: Highly critical Impact: System compromise Where: Remote ====================================================================== 3) Description of Vulnerability Secunia Research has discovered a vulnerability in Microsoft Windows, which can be exploited by malicious people to compromise a user's system. The vulnerability is caused due to an error in Microsoft Agent (agentsvr.exe) when processing specially crafted URLs passed as arguments to certain methods. Successful exploitation allows execution of arbitrary code when a user e.g. visits a malicious website with Internet Explorer. ====================================================================== 4) Solution Apply patches (see Microsoft security bulletin for details). ====================================================================== 5) Time Table 11/12/2006 - Vendor notified. 11/12/2006 - Vendor response. 10/04/2007 - Public disclosure. ====================================================================== 6) Credits Discovered by JJ Reyes and Carsten Eiram, Secunia Research. ====================================================================== 7) References The Common Vulnerabilities and Exposures (CVE) project has assigned CVE-2007-1205 for the vulnerability. MS07-020 (KB932168): http://www.microsoft.com/technet/security/Bulletin/MS07-020.mspx ====================================================================== 8) About Secunia Secunia offers vulnerability management solutions to corporate customers with verified and reliable vulnerability intelligence relevant to their specific system configuration: http://corporate.secunia.com/ Secunia also provides a publicly accessible and comprehensive advisory database as a service to the security community and private individuals, who are interested in or concerned about IT-security. http://secunia.com/ Secunia believes that it is important to support the community and to do active vulnerability research in order to aid improving the security and reliability of software in general: http://corporate.secunia.com/secunia_research/33/ Secunia regularly hires new skilled team members. Check the URL below to see currently vacant positions: http://secunia.com/secunia_vacancies/ Secunia offers a FREE mailing list called Secunia Security Advisories: http://secunia.com/secunia_security_advisories/ ====================================================================== 9) Verification Please verify this advisory by visiting the Secunia website: http://secunia.com/secunia_research/2006-74/ Complete list of vulnerability reports published by Secunia Research: http://secunia.com/secunia_research/ ======================================================================