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Microsoft SharePoint Foundation 2013 WCF/WIF SAML Authentication Bypass Vulnerability (KB4475527)
Information
Severity
Severity
Critical
Family
Family
Windows : Microsoft Bulletins
CVSSv2 Base
CVSSv2 Base
9.3
CVSSv2 Vector
CVSSv2 Vector
AV:N/AC:M/Au:N/C:C/I:C/A:C
Solution Type
Solution Type
Vendor Patch
Created
Created
4 years ago
Modified
Modified
4 years ago
Summary
This host is missing an important security update according to Microsoft KB4475527
Insight
Insight
An authentication bypass vulnerability exists in Windows Communication Foundation (WCF) and Windows Identity Foundation (WIF), allowing signing of SAML tokens with arbitrary symmetric keys.
Affected Software
Affected Software
Microsoft SharePoint Foundation 2013 Service Pack 1
Detection Method
Detection Method
Checks if a vulnerable version is present on the target host
Solution
Solution
The vendor has released updates. Please see the references for more information.