sudo, when linked with MIT Kerberos 5 (krb5), does not properly check whether a user can currently authenticate to Kerberos, which allows local users to gain privileges, in a manner unintended by the sudo security model, via certain KRB5_ environment variable settings. NOTE: another researcher disputes this vulnerability, stating that the attacker must be "a user, who can already log into your system, and can already use sudo."
Link | Tags |
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http://www.securityfocus.com/bid/24368 | vdb entry |
http://www.sudo.ws/cgi-bin/cvsweb/sudo/auth/kerb5.c | |
http://www.securityfocus.com/archive/1/470752/100/0/threaded | mailing list |
http://www.securityfocus.com/archive/1/470739/100/0/threaded | mailing list |
http://secunia.com/advisories/26540 | third party advisory |
http://www.securityfocus.com/archive/1/470774/100/0/threaded | mailing list |