Descriptionmod_auth_mellon through 0.14.2 has an Open Redirect via the login?ReturnTo= substring, as demonstrated by omitting the // after http: in the target URL.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, Mageia, GitHub code/issues, web search, more)
NVD severitymedium
Debian Bugs931265

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
libapache2-mod-auth-mellon (PTS)stretch (security), stretch0.12.0-2+deb9u1vulnerable
bullseye, sid0.17.0-1fixed

The information below is based on the following data on fixed versions.

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs


[buster] - libapache2-mod-auth-mellon <no-dsa> (Minor issue)
[stretch] - libapache2-mod-auth-mellon <no-dsa> (Minor issue)
[jessie] - libapache2-mod-auth-mellon <ignored> (Open Redirect protection not implemented yet)

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