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Microsoft .NET Framework XML HMAC Truncation Vulnerability (981343)
Information
Severity
Severity
Medium
Family
Family
Windows : Microsoft Bulletins
CVSSv2 Base
CVSSv2 Base
5.0
CVSSv2 Vector
CVSSv2 Vector
AV:N/AC:L/Au:N/C:N/I:P/A:N
Solution Type
Solution Type
Vendor Patch
Created
Created
13 years ago
Modified
Modified
4 years ago
Summary
This host is missing a critical security update according to Microsoft Bulletin MS10-041.
Insight
Insight
The issue is caused by an error in the XML Signature Syntax and Processing (XMLDsig) implementation that rely on the 'HMACOutputLength' parameter to determine the number of bytes of the signature to be verified.
Affected Software
Affected Software
Microsoft .NET Framework 3.5/SP 1 Microsoft .NET Framework 1.1 SP 1 Microsoft .NET Framework 1.0 SP 3 Microsoft .NET Framework 2.0 SP 1/SP 2
Solution
Solution
The vendor has released updates. Please see the references for more information.