CVE-2015-2694

Name of the Vulnerable Software and Affected Versions MIT Kerberos 5 versions 1.12.x through 1.13.1

Description The issue allows remote attackers to bypass an intended preauthentication requirement. This can be achieved by providing either zero bytes of data or an arbitrary realm name. The problem is related to the kdcpreauth modules in MIT Kerberos 5, specifically in the plugins/preauth/otp/main.c and plugins/preauth/pkinit/pkinit srv.c files.

Recommendations For versions 1.12.x through 1.13.1, update to version 1.13.2 or later to resolve the issue. As a temporary workaround, consider restricting access to the kdcpreauth modules until a patch is available.