CVE-2012-5975

Severity CVSS v4.0:

Pending analysis

Type:

CWE-287 Authentication Issues

Publication date:

04/12/2012

Last modified:

11/04/2025

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.

Impact

Vector 2.0

AV:N/AC:M/Au:N/C:C/I:C/A:C CVSS v2.0 Severity and Metrics:

Base Score: 9.30 HIGH
Vector: AV:N/AC:M/Au:N/C:C/I:C/A:C

Attack Vector (AV): Network
Attack Complexity (AC): Medium
Authentication (Au): None
Confidentiality (C): Complete
Integrity (I): Complete
Availability (A): Complete

Base Score 2.0

9.30

Severity 2.0

HIGH

Vulnerable products and versions

CPE	From	Up to
cpe:2.3:a:ssh:tectia_server:6.0.4:::::::*
cpe:2.3:a:ssh:tectia_server:6.0.5:::::::*
cpe:2.3:a:ssh:tectia_server:6.0.6:::::::*
cpe:2.3:a:ssh:tectia_server:6.0.7:::::::*
cpe:2.3:a:ssh:tectia_server:6.0.8:::::::*
cpe:2.3:a:ssh:tectia_server:6.0.9:::::::*
cpe:2.3:a:ssh:tectia_server:6.0.10:::::::*
cpe:2.3:a:ssh:tectia_server:6.0.11:::::::*
cpe:2.3:a:ssh:tectia_server:6.0.12:::::::*
cpe:2.3:a:ssh:tectia_server:6.0.13:::::::*
cpe:2.3:a:ssh:tectia_server:6.0.14:::::::*
cpe:2.3:a:ssh:tectia_server:6.0.17:::::::*
cpe:2.3:a:ssh:tectia_server:6.0.18:::::::*
cpe:2.3:a:ssh:tectia_server:6.0.19:::::::*
cpe:2.3:a:ssh:tectia_server:6.0.20.:::::::*

To consult the complete list of CPE names with products and versions, see this page

CPE	From	Up to
cpe:2.3:a:ssh:tectia_server:6.0.4:::::::*
cpe:2.3:a:ssh:tectia_server:6.0.5:::::::*
cpe:2.3:a:ssh:tectia_server:6.0.6:::::::*
cpe:2.3:a:ssh:tectia_server:6.0.7:::::::*
cpe:2.3:a:ssh:tectia_server:6.0.8:::::::*
cpe:2.3:a:ssh:tectia_server:6.0.9:::::::*
cpe:2.3:a:ssh:tectia_server:6.0.10:::::::*
cpe:2.3:a:ssh:tectia_server:6.0.11:::::::*
cpe:2.3:a:ssh:tectia_server:6.0.12:::::::*
cpe:2.3:a:ssh:tectia_server:6.0.13:::::::*
cpe:2.3:a:ssh:tectia_server:6.0.14:::::::*
cpe:2.3:a:ssh:tectia_server:6.0.17:::::::*
cpe:2.3:a:ssh:tectia_server:6.0.18:::::::*
cpe:2.3:a:ssh:tectia_server:6.0.19:::::::*
cpe:2.3:a:ssh:tectia_server:6.0.20.:::::::*

CVE-2012-5975

Description

Impact

Vulnerable products and versions

References to Advisories, Solutions, and Tools