78055 : Microsoft .NET Framework ASP.NET Username Parsing Authentication Bypass
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Views This Week Views All Time Added to OSVDB Last Modified Modified (since 2008) Percent Complete
5 1665 over 2 years ago 10 months ago 23 times 100%

Timeline

Disclosure Date
2011-12-29
Time to Exploit
179 days

Description

Microsoft .NET Framework contains a flaw that is triggered by the way ASP.NET improperly parses usernames. This may allow an attacker to bypass authentication.

Classification

Location: Remote / Network Access
Attack Type: Authentication Management, Input Manipulation
Impact: Loss of Integrity
Solution: Patch / RCS
Exploit: Exploit Public
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
3.5 SP1
4.0
2.0 SP2

References

Credit

CVSSv2 Score

CVSSv2 Base Score = 8.5
Source: nvd.nist.gov | Generated: 2011-12-30 | Disagree?

Access_vector_2 Access_complexity_1 Authentication_1 Confidentiality_impact_2 Integrity_impact_2 Availability_impact_2

Comments

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