SSH Tectia Client and Server ssh-signer binary privilege escalation

ssh-tectia-sshsigner-privilege-escalation (39569) The risk level is classified as HighHigh Risk

Description:

An unspecified vulnerability in the ssh-signer binary of the SSH Tectia Client and Server could allow a local attacker to gain root privileges on the system.

Platforms Affected:

  • SSH, Tectia Client 5.0
  • SSH, Tectia Client 5.1.0
  • SSH, Tectia Client 5.2.0
  • SSH, Tectia Client 5.2.1
  • SSH, Tectia Client 5.2.2
  • SSH, Tectia Client 5.2.3
  • SSH, Tectia Client 5.3.0
  • SSH, Tectia Client 5.3.1
  • SSH, Tectia Client 5.3.2
  • SSH, Tectia Client 5.3.3
  • SSH, Tectia Client 5.3.4
  • SSH, Tectia Client 5.3.5
  • SSH, Tectia Server 5.0
  • SSH, Tectia Server 5.1.0
  • SSH, Tectia Server 5.2.0
  • SSH, Tectia Server 5.2.1
  • SSH, Tectia Server 5.2.2
  • SSH, Tectia Server 5.2.3
  • SSH, Tectia Server 5.3.0
  • SSH, Tectia Server 5.3.1
  • SSH, Tectia Server 5.3.2
  • SSH, Tectia Server 5.3.3
  • SSH, Tectia Server 5.3.4
  • SSH, Tectia Server 5.3.5

Remedy:

Upgrade to the latest version of SSH Tectia Client and Server (5.2.4 or 5.3.6 or later), available from the SSH Web site. See References.

Consequences:

Gain Privileges

References:

  • SSH Web site, SSH Communications Security at http://www.ssh.com.
  • BID-27191: SSH Tectia Client and Server ssh-signer Local Privilege Escalation Vulnerability
  • CVE-2007-5616: ssh-signer in SSH Tectia Client and Server 5.x before 5.2.4, and 5.3.x before 5.3.6, on Unix and Linux allows local users to gain privileges via unspecified vectors.
  • FrSIRT/ADV-2008-0078: SSH Tectia Client and Server ssh-signer Local Privilege Escalation Issue
  • SA28247: SSH Tectia Client/Server ssh-signer Unspecified Privilege Escalation
  • SECTRACK ID: 1019167: SSH Tectia Lets Local Users Gain Root Privileges
  • US-CERT VU#921339: SSH Tectia Client and Server ssh-signer local privilege escalation

Reported:

Jan 08, 2008

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