CVE-2012-5975

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Summary

CVECVE-2012-5975
StatePUBLISHED
Assignermitre
Source PriorityCVE Program / NVD first with legacy fallback
Published2012-12-04 23:55:00 UTC
Updated2026-04-29 01:13:23 UTC
DescriptionThe 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.

Risk And Classification

Primary CVSS: v2.0 9.3 from [email protected]

AV:N/AC:M/Au:N/C:C/I:C/A:C

Problem Types: CWE-287 | n/a

CVSS v2.0 Breakdown

Access Vector
Network
Access Complexity
Medium
Authentication
None
Confidentiality
Complete
Integrity
Complete
Availability
Complete

AV:N/AC:M/Au:N/C:C/I:C/A:C

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Linux Linux Kernel All All All All
Application Ssh Tectia Server 6.0.10 All All All
Application Ssh Tectia Server 6.0.11 All All All
Application Ssh Tectia Server 6.0.12 All All All
Application Ssh Tectia Server 6.0.13 All All All
Application Ssh Tectia Server 6.0.14 All All All
Application Ssh Tectia Server 6.0.17 All All All
Application Ssh Tectia Server 6.0.18 All All All
Application Ssh Tectia Server 6.0.19 All All All
Application Ssh Tectia Server 6.0.20. All All All
Application Ssh Tectia Server 6.0.4 All All All
Application Ssh Tectia Server 6.0.5 All All All
Application Ssh Tectia Server 6.0.6 All All All
Application Ssh Tectia Server 6.0.7 All All All
Application Ssh Tectia Server 6.0.8 All All All
Application Ssh Tectia Server 6.0.9 All All All
Application Ssh Tectia Server 6.1.0 All All All
Application Ssh Tectia Server 6.1.1 All All All
Application Ssh Tectia Server 6.1.12 All All All
Application Ssh Tectia Server 6.1.2 All All All
Application Ssh Tectia Server 6.1.3 All All All
Application Ssh Tectia Server 6.1.4 All All All
Application Ssh Tectia Server 6.1.5 All All All
Application Ssh Tectia Server 6.1.6 All All All
Application Ssh Tectia Server 6.1.7 All All All
Application Ssh Tectia Server 6.1.8 All All All
Application Ssh Tectia Server 6.1.9 All All All
Application Ssh Tectia Server 6.2.0 All All All
Application Ssh Tectia Server 6.2.1 All All All
Application Ssh Tectia Server 6.2.2 All All All
Application Ssh Tectia Server 6.2.3 All All All
Application Ssh Tectia Server 6.2.4 All All All
Application Ssh Tectia Server 6.2.5 All All All
Application Ssh Tectia Server 6.3.0 All All All
Application Ssh Tectia Server 6.3.1 All All All
Application Ssh Tectia Server 6.3.2 All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Na N/a affected n/a Not specified

References

ReferenceSourceLinkTags
(SSH.com Communications) SSH Tectia (SSH < 2.0-6.1.9.95 / Tectia 6.1.9.95) - Remote Authentication Bypass - Linux remote Exploit af854a3a-2127-422b-91ae-364da2661108 www.exploit-db.com
NEOHAPSIS - Peace of Mind Through Integrity and Insight af854a3a-2127-422b-91ae-364da2661108 archives.neohapsis.com
archives.neohapsis.com/archives/fulldisclosure/2012-12/0065.html af854a3a-2127-422b-91ae-364da2661108 archives.neohapsis.com
metasploit-framework/tectia_passwd_changereq.rb at master · rapid7/metasploit-framework · GitHub af854a3a-2127-422b-91ae-364da2661108 github.com Exploit
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NVD vulnerability detail NVD nvd.nist.gov canonical, analysis
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