CVE-2012-5975

The SSH USERAUTH CHANGE REQUEST feature in SSH Tectia Server 6.0.4 through 6.0.20, 6.1.0 through 6.1.12, 6.2.0 through 6.2.5, and 6.3.0 through 6.3.2 on UNIX and Linux, when old-style password authentication is enabled, allows remote attackers to bypass authentication via a crafted session involving entry of blank passwords, as demonstrated by a root login session from a modified OpenSSH client with an added input_userauth_passwd_changereq call in sshconnect2.c.

CVSS v2.0

9.3 HIGHAV:N/AC:M/Au:N/C:C/I:C/A:C

EPSS

35.87% chance of exploitation in the next 30 days, 98th percentile

Published

2012-12-04

Updated

2024-09-17

Proof-of-concept exploits (3)

• http://www.exploit-db.com/exploits/23082/
• http://archives.neohapsis.com/archives/fulldisclosure/2012-12/0065.html
• http://archives.neohapsis.com/archives/fulldisclosure/2012-12/0013.html

Metasploit modules (1)

• rapid7/metasploit-framework/blob/master/modules/exploits/unix/ssh/tectia_passwd_changereq…

ExploitDB entries (2)

• https://www.exploit-db.com/exploits/23156
• https://www.exploit-db.com/exploits/23082

References

• CVE Record
• NVD entry

Related

• CVE-2012-5972
• CVE-2012-5991
• CVE-2012-5967
• CVE-2012-5992
• CVE-2012-5965
• CVE-2012-6007