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Debian Security Advisory DSA 4414-1 (libapache2-mod-auth-mellon - security update)
Information
Severity
Severity
Family
Family
CVSSv2 Base
CVSSv2 Base
CVSSv2 Vector
CVSSv2 Vector
Solution Type
Solution Type
Created
Created
Modified
Modified
Summary
The remote host is missing an update for the 'libapache2-mod-auth-mellon' package(s) announced via the DSA-4414-1 advisory.
Insight
Insight
Several issues have been discovered in Apache module auth_mellon, which provides SAML 2.0 authentication. CVE-2019-3877 It was possible to bypass the redirect URL checking on logout, so the module could be used as an open redirect facility. CVE-2019-3878 When mod_auth_mellon is used in an Apache configuration which serves as a remote proxy with the http_proxy module, it was possible to bypass authentication by sending SAML ECP headers.
Affected Software
Affected Software
'libapache2-mod-auth-mellon' package(s) on Debian Linux.
Detection Method
Detection Method
Checks if a vulnerable package version is present on the target host.
Solution
Solution
For the stable distribution (stretch), these problems have been fixed in version 0.12.0-2+deb9u1. We recommend that you upgrade your libapache2-mod-auth-mellon packages.