The kadm5_randkey_principal_3 function in lib/kadm5/srv/svr_principal.c in kadmind in MIT Kerberos 5 (aka krb5) before 1.13 sends old keys in a response to a -randkey -keepold request, which allows remote authenticated users to forge tickets by leveraging administrative access.

References

• https://nvd.nist.gov/vuln/detail/CVE-2014-5351
• krb5/krb5@af0ed4d
• https://bugzilla.redhat.com/show_bug.cgi?id=1145425
• https://exchange.xforce.ibmcloud.com/vulnerabilities/97028
• https://lists.debian.org/debian-lts-announce/2018/01/msg00040.html
• http://advisories.mageia.org/MGASA-2014-0477.html
• http://krbdev.mit.edu/rt/Ticket/Display.html?id=8018
• http://lists.fedoraproject.org/pipermail/package-announce/2014-October/140132.html
• http://lists.fedoraproject.org/pipermail/package-announce/2015-March/151103.html
• http://lists.opensuse.org/opensuse-security-announce/2015-02/msg00016.html
• http://lists.opensuse.org/opensuse-updates/2015-02/msg00044.html
• http://security.gentoo.org/glsa/glsa-201412-53.xml
• http://www.mandriva.com/security/advisories?name=MDVSA-2014:224
• http://www.securityfocus.com/bid/70380
• http://www.securitytracker.com/id/1031003
• http://www.ubuntu.com/usn/USN-2498-1