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Debian Security Advisory DSA 4414-1 (libapache2-mod-auth-mellon - security update)

Information

Severity

Severity

Medium

Family

Family

Debian Local Security Checks

CVSSv2 Base

CVSSv2 Base

6.8

CVSSv2 Vector

CVSSv2 Vector

AV:N/AC:M/Au:N/C:P/I:P/A:P

Solution Type

Solution Type

Vendor Patch

Created

Created

3 years ago

Modified

Modified

3 years ago

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.

Common Vulnerabilities and Exposures (CVE)