CVE-2011-1271
The JIT compiler in Microsoft .NET Framework 3.5 Gold and SP1, 3.5.1, and 4.0, when IsJITOptimizerDisabled is false, does not properly handle expressions relat…
Public exploit code
Working exploit or proof of concept code has been published for this vulnerability. Treat unpatched systems as at risk.
- Microsoft .NET Framework JIT Compiler - Optimization NULL String Remote Code Execution2011-03-04 · remote · windows · Verified
Impact
The JIT compiler in Microsoft .NET Framework 3.5 Gold and SP1, 3.5.1, and 4.0, when IsJITOptimizerDisabled is false, does not properly handle expressions related to null strings, which allows context-dependent attackers to bypass intended access restrictions, and consequently execute arbitrary code, in opportunistic circumstances by leveraging a crafted application, as demonstrated by (1) a crafted XAML browser application (aka XBAP), (2) a crafted ASP.NET application, or (3) a crafted .NET Framework application, aka ".NET Framework JIT Optimization Vulnerability."
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Microsoft | .Net Framework | Versions 4.0, 3.5.1, 2.0, 3.5 |
Weakness classification
References
- NVD record
- CVE.org record
- http://stackoverflow.com/questions/2135509/bug-only-occurring-when-compile-optimization-enabled/
- https://docs.microsoft.com/en-us/security-updates/securitybulletins/2011/ms11-044
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A12686
- http://stackoverflow.com/questions/2135509/bug-only-occurring-when-compile-optimization-enabled/
- https://docs.microsoft.com/en-us/security-updates/securitybulletins/2011/ms11-044
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A12686