CVE-2012-5975

critical
Published 2012-12-04 · Modified 2026-04-29
CVSS v3
CVSS v2
9.3
VIR risk
9.3

Description

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.

Predictions

Exploit likelihood
20%
Patch ETA

Heuristic predictions, AS-IS, for prioritization only.

Mitigations

No vendor mitigations ingested yet for this CVE. The mitigation-content worker queues fetches as references arrive — check back in a few minutes, or see the references list below.

OS impact

OSVersionStatusFixed in
linux linux-kernelnot-affected

Application impact

VendorProductVersionsFixed
sshtectia_server6.0.4
sshtectia_server6.0.5
sshtectia_server6.0.6
sshtectia_server6.0.7
sshtectia_server6.0.8
sshtectia_server6.0.9
sshtectia_server6.0.10
sshtectia_server6.0.11
sshtectia_server6.0.12
sshtectia_server6.0.13
sshtectia_server6.0.14
sshtectia_server6.0.17
sshtectia_server6.0.18
sshtectia_server6.0.19
sshtectia_server6.0.20.
sshtectia_server6.1.0
sshtectia_server6.1.1
sshtectia_server6.1.2
sshtectia_server6.1.3
sshtectia_server6.1.4
sshtectia_server6.1.5
sshtectia_server6.1.6
sshtectia_server6.1.7
sshtectia_server6.1.8
sshtectia_server6.1.9
sshtectia_server6.1.12
sshtectia_server6.2.0
sshtectia_server6.2.1
sshtectia_server6.2.2
sshtectia_server6.2.3
sshtectia_server6.2.4
sshtectia_server6.2.5
sshtectia_server6.3.0
sshtectia_server6.3.1
sshtectia_server6.3.2

References

CWEs

CWE-287

Verify integrity in audit chain (admin only). AS-IS.