78056 : Microsoft .NET Framework Forms Authentication Sliding Expiry Cached Content Parsing Remote Code Execution
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Views This Week	Views All Time	Added to OSVDB	Last Modified	Modified (since 2008)	Percent Complete
8	979	over 1 year ago	5 months ago	16 times	100%

Timeline

Disclosure Date
2011-12-29

Description

Microsoft .NET Framework contains a flaw that is triggered due to the way the program authenticates forms. When parsing sliding expiry cached content, a remote attacker may potentially be able to execute arbitrary code.

Classification

Location: Remote / Network Access
Attack Type: Input Manipulation
Impact: Loss of Integrity
Solution: Patch / RCS
Exploit: Exploit Private
Disclosure: Vendor Verified, Coordinated Disclosure

Solution

Currently, there are no known workarounds or upgrades to correct this issue. However, Microsoft has released a patch to address this vulnerability. Check the vendor advisory or solution in the references section.

Products

Microsoft Corporation	.NET Framework	1.1 SP1
		3.5.1
		2.0 SP2
		3.5 SP1
		4.0

References

OVAL ID: 14625
CVE ID: 2011-3417 (see also: NVD)
Microsoft Knowledge Base Article: 2638420 2656351 2656352 2656353 2656355 2656356 2656358 2656362 2657424
SCIP VulDB ID: 4509
Secunia Advisory ID: 47323
Bugtraq ID: 51203
Related OSVDB ID: 78054 78055 78057
Vendor Specific Advisory URL: http://technet.microsoft.com/en-us/security/bulletin/MS11-100

Credit

Oliver Dewdney - LBi

CVSSv2 Score

CVSSv2 Base Score = 9.3
Source: nvd.nist.gov | Generated: 2011-12-30 | Disagree?

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