Vulnerability Details : 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 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."
Vulnerability category: Input validation
Exploit prediction scoring system (EPSS) score for CVE-2012-4776
Probability of exploitation activity in the next 30 days: 93.29%
Percentile, the proportion of vulnerabilities that are scored at or less: ~ 99 % EPSS Score History EPSS FAQ
CVSS scores for CVE-2012-4776
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source |
---|---|---|---|---|---|
9.3
|
HIGH | AV:N/AC:M/Au:N/C:C/I:C/A:C |
8.6
|
10.0
|
NIST |
CWE ids for CVE-2012-4776
-
The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.Assigned by: nvd@nist.gov (Primary)
References for CVE-2012-4776
-
http://www.securityfocus.com/bid/56463
Microsoft .NET Framework CVE-2012-4776 Remote Code Execution Vulnerability
-
http://osvdb.org/87266
-
http://secunia.com/advisories/51236
Sign in
-
http://www.us-cert.gov/cas/techalerts/TA12-318A.html
Microsoft Updates for Multiple Vulnerabilities | CISAUS Government Resource
-
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A15810
Repository / Oval Repository
-
https://docs.microsoft.com/en-us/security-updates/securitybulletins/2012/ms12-074
Microsoft Security Bulletin MS12-074 - Critical | Microsoft Docs
-
http://www.securitytracker.com/id?1027753
Microsoft .NET Flaws Let Remote Users Execute Arbitrary Code, Obtain Potentially Sensitive Information, and Bypass Security Restrictions - SecurityTracker
Products affected by CVE-2012-4776
- cpe:2.3:a:microsoft:.net_framework:2.0:sp2:*:*:*:*:*:*
- cpe:2.3:a:microsoft:.net_framework:3.5:*:*:*:*:*:*:*
- cpe:2.3:a:microsoft:.net_framework:3.5.1:*:*:*:*:*:*:*
- cpe:2.3:a:microsoft:.net_framework:4.0:*:*:*:*:*:*:*
- cpe:2.3:a:microsoft:.net_framework:4.5:*:*:*:*:*:*:*