Vulnerability Description
The Web Proxy Auto-Discovery (WPAD) functionality in Microsoft .NET Framework 2.0 SP2, 3.5, 3.5.1, 4, and 4.5 does not validate configuration data that is returned during acquisition of proxy settings, which allows remote attackers to execute arbitrary JavaScript code by providing crafted data during execution of (1) an XAML browser application (aka XBAP) or (2) a .NET Framework application, aka "Web Proxy Auto-Discovery Vulnerability."
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Microsoft | .Net Framework | 2.0 |
| Microsoft | Windows Server 2003 | All versions |
| Microsoft | Windows Server 2008 | All versions |
| Microsoft | Windows Vista | All versions |
| Microsoft | Windows Xp | All versions |
| Microsoft | Windows 7 | All versions |
| Microsoft | Windows 8 | - |
| Microsoft | Windows Server 2012 | - |
Related Weaknesses (CWE)
References
- http://osvdb.org/87266
- http://secunia.com/advisories/51236
- http://www.securityfocus.com/bid/56463
- http://www.securitytracker.com/id?1027753
- http://www.us-cert.gov/cas/techalerts/TA12-318A.htmlUS Government Resource
- https://docs.microsoft.com/en-us/security-updates/securitybulletins/2012/ms12-07
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3
- http://osvdb.org/87266
- http://secunia.com/advisories/51236
- http://www.securityfocus.com/bid/56463
- http://www.securitytracker.com/id?1027753
- http://www.us-cert.gov/cas/techalerts/TA12-318A.htmlUS Government Resource
- https://docs.microsoft.com/en-us/security-updates/securitybulletins/2012/ms12-07
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3
FAQ
What is CVE-2012-4776?
CVE-2012-4776 is a vulnerability with a CVSS score of 9.3 (HIGH). The Web Proxy Auto-Discovery (WPAD) functionality in Microsoft .NET Framework 2.0 SP2, 3.5, 3.5.1, 4, and 4.5 does not validate configuration data that is returned during acquisition of proxy settings...
How severe is CVE-2012-4776?
CVE-2012-4776 has been rated HIGH with a CVSS base score of 9.3/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2012-4776?
Check the references section above for vendor advisories and patch information. Affected products include: Microsoft .Net Framework, Microsoft Windows Server 2003, Microsoft Windows Server 2008, Microsoft Windows Vista, Microsoft Windows Xp.