The MPC::HexToNum function in helpctr.exe in Microsoft Windows Help and...
Vulnerability Description
The MPC::HexToNum function in helpctr.exe in Microsoft Windows Help and Support Center in Windows XP and Windows Server 2003 does not properly handle malformed escape sequences, which allows remote attackers to bypass the trusted documents whitelist (fromHCP option) and execute arbitrary commands via a crafted hcp:// URL, aka "Help Center URL Validation Vulnerability."
Impact Analysis
Refer to official advisory for detailed impact metrics.
Remediation
Ensure systems are updated to the latest vendor-supplied patch levels.
Am I Vulnerable?
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Credits & Attribution
No credits recorded in the NVD database.
References
- http://www.kb.cert.org/vuls/id/578319
- http://www.securityfocus.com/archive/1/511774/100/0/threaded
- https://exchange.xforce.ibmcloud.com/vulnerabilities/59267
- http://www.securityfocus.com/archive/1/511783/100/0/threaded
- http://blogs.technet.com/b/srd/archive/2010/06/10/help-and-support-center-vulnerability-full-disclosure-posting.aspx
- http://www.securityfocus.com/bid/40725
- http://archives.neohapsis.com/archives/fulldisclosure/2010-06/0197.html
- http://www.securitytracker.com/id?1024084
- http://www.exploit-db.com/exploits/13808
- http://blogs.technet.com/b/msrc/archive/2010/06/10/windows-help-vulnerability-disclosure.aspx
- http://www.microsoft.com/technet/security/advisory/2219475.mspx
- http://www.us-cert.gov/cas/techalerts/TA10-194A.html
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11733
- http://www.vupen.com/english/advisories/2010/1417
- https://docs.microsoft.com/en-us/security-updates/securitybulletins/2010/ms10-042
- http://secunia.com/advisories/40076
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Timeline
CVSS Vectors
Weaknesses (CWE)
No CWE data available
MITRE ATT&CK TTPs
No associated TTPs found for this vulnerability.