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Shibboleth XMLTooling-C Library Security Bypass Vulnerability
Information
Severity
Severity
Family
Family
CVSSv2 Base
CVSSv2 Base
CVSSv2 Vector
CVSSv2 Vector
Solution Type
Solution Type
Created
Created
Modified
Modified
Summary
The host is installed with Shibboleth Service Provider and is prone to security bypass vulnerability.
Insight
Insight
The flaw exists due to limitations in older versions of the XML parser that make it impossible to fully disable Document Type Definition (DTD) processing. Through addition/manipulation of a DTD, it's possible to make changes to an XML document that do not break a digital signature but are mishandled by the SP and its libraries processing.
Affected Software
Affected Software
Shibboleth XMLTooling-C before 1.6.4, as used in Shibboleth Service Provider before 2.6.1.4.
Detection Method
Detection Method
Checks if a vulnerable version is present on the target host.
Solution
Solution
Upgrade to Shibboleth Service Provider release (V2.6.1.4) or upgrade XMLTooling-C library to version 1.6.4.