Kerberos telnet Crafted Username Remote Authentication Bypass

This script is Copyright (C) 2007-2015 Tenable Network Security, Inc.

Synopsis :

It is possible to log into the remote system using telnet without
supplying any credentials

Description :

The remote version of Kerberos telnet does not sanitize the
user-supplied 'USER' environement variable. By supplying a specially
malformed USER environment variable, an attacker may force the remote
telnet server to believe that the user has already authenticated.

Solution :

Apply the patch below or contact your vendor for a patch :

Risk factor :

High / CVSS Base Score : 7.6
CVSS Temporal Score : 6.3
Public Exploit Available : true

Family: Gain a shell remotely

Nessus Plugin ID: 24998 (krb_telnet_env.nasl)

Bugtraq ID: 23281

CVE ID: CVE-2007-0956