The auth_via_key function in pam_ssh.c in pam_ssh before 1.92, when the allow_blank_passphrase option is disabled, allows remote attackers to bypass authentication restrictions and use private encryption keys requiring a blank passphrase by entering a non-blank passphrase.
Affected Software
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Pam_ssh | Pam_ssh | 1.91 (including) | 1.91 (including) |
References
- http://osvdb.org/33119
- http://secunia.com/advisories/24061
- http://sourceforge.net/project/shownotes.php?release_id=484376
- http://www.securityfocus.com/bid/22461
- http://www.vupen.com/english/advisories/2007/0524
- http://osvdb.org/33119
- http://secunia.com/advisories/24061
- http://sourceforge.net/project/shownotes.php?release_id=484376
- http://www.securityfocus.com/bid/22461
- http://www.vupen.com/english/advisories/2007/0524