CVE-2012-4776
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…
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EPSS puts the probability of exploitation in the next 30 days at 24.8%, higher than 98% of all known CVEs. Patch or mitigate before the next change window.
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 2.0
- 9.3 HIGHAV:N/AC:M/Au:N/C:C/I:C/A:C
- EPSS
- 24.75% probability · 98th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-20
- Affected
- microsoft/.net framework
- Source
- secure@microsoft.com
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/ms12-074
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A15810
- 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/ms12-074
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A15810
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.