66160 : Microsoft IIS Basic Authentication NTFS Stream Name Permissions Bypass
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Timeline

Disclosure Date
2010-07-03
Days of Exposure
74 days

Description

Microsoft Internet Information Services contains a flaw related to the handling of basic directory authentication. The issue is triggered when a remote attacker appends the NTFS stream name and type to the directory name in a request. This may allow an attacker to bypass authentication permissions.

Classification

Location: Remote / Network Access
Attack Type: Information Disclosure, Input Manipulation
Impact: Loss of Confidentiality
Solution: Patch / RCS
Exploit: Exploit Public
Disclosure: Uncoordinated Disclosure
OSVDB: Web Related

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 Microsoft Security Bulletin in the references section.

Products

Microsoft Corporation
IIS
5.1

References

Credit

CVSSv2 Score

CVSSv2 Base Score = 6.8
Source: nvd.nist.gov | Generated: 2010-09-16 | Disagree?

Access_vector_2 Access_complexity_1 Authentication_2 Confidentiality_impact_1 Integrity_impact_1 Availability_impact_1

Comments

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