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Overview

Vulnerability Score 9.3 9.3
CVE Id CVE-2012-5975
Last Modified 05 Dec 2012 12:00:00
Published 04 Dec 2012 06:55:00
Confidentiality Impact COMPLETE COMPLETE
Integrity Impact COMPLETE COMPLETE
Availability Impact COMPLETE COMPLETE
Access Vector NETWORK
Access Complexity MEDIUM
Authentication NONE

CVE-2012-5975

Summary

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.

Vulnerable Systems

Application

  • Ssh Tectia Server 6.0.10

  • Ssh Tectia Server 6.0.11

  • Ssh Tectia Server 6.0.12

  • Ssh Tectia Server 6.0.13

  • Ssh Tectia Server 6.0.14

  • Ssh Tectia Server 6.0.17

  • Ssh Tectia Server 6.0.18

  • Ssh Tectia Server 6.0.19

  • Ssh Tectia Server 6.0.20.

  • Ssh Tectia Server 6.0.4

  • Ssh Tectia Server 6.0.5

  • Ssh Tectia Server 6.0.6

  • Ssh Tectia Server 6.0.7

  • Ssh Tectia Server 6.0.8

  • Ssh Tectia Server 6.0.9

  • Ssh Tectia Server 6.1.0

  • Ssh Tectia Server 6.1.1

  • Ssh Tectia Server 6.1.12

  • Ssh Tectia Server 6.1.2

  • Ssh Tectia Server 6.1.3

  • Ssh Tectia Server 6.1.4

  • Ssh Tectia Server 6.1.5

  • Ssh Tectia Server 6.1.6

  • Ssh Tectia Server 6.1.7

  • Ssh Tectia Server 6.1.8

  • Ssh Tectia Server 6.1.9

  • Ssh Tectia Server 6.2.0

  • Ssh Tectia Server 6.2.1

  • Ssh Tectia Server 6.2.2

  • Ssh Tectia Server 6.2.3

  • Ssh Tectia Server 6.2.4

  • Ssh Tectia Server 6.2.5

  • Ssh Tectia Server 6.3.0

  • Ssh Tectia Server 6.3.1

  • Ssh Tectia Server 6.3.2


References

MISC - https://github.com/rapid7/metasploit-framework/blob/master/modules/exploits/unix/ssh/tectia_passwd_changereq.rb

EXPLOIT-DB - 23082

FULLDISC - 20121203 Re: SSH.com Communications SSH Tectia Authentication Bypass Remote Zeroday Exploit (king cope)

FULLDISC - 20121201 SSH.com Communications SSH Tectia Authentication Bypass Remote Zeroday Exploit


Last Updated: 27 May 2016 11:01:26