SSH Tectia Server host key disclosure
| sshtectiaserver-host-key-disclosure (21217) |  Medium Risk |
Description:
SSH (Secure Shell) Tectia Server could allow a local or remote authenticated attacker to obtain the host key caused by a vulnerability with improper file permissions. A local or remote authenticated attacker could access the host identification key without the required administrative privilege to copy the host key and install on the targeted Web server to masquerade as the targeted original server.
Platforms Affected:
- SSH, Secure Shell
- SSH, Tectia Server 4.3
- SSH, Tectia Server 4.3.1
Remedy:
Upgrade to the latest version of SSH Tectia Server (4.3.2 or later), available from the SSH Tectia Server Download Web page. See References.
Consequences:
Obtain Information
References:
- CIAC INFORMATION BULLETIN P-257, SSH Tectia Server Private Key Permission Vulnerability in Windows at http://www.ciac.org/ciac/bulletins/p-257.shtml.
- SSH : Company : Newsroom, SSH Tectia Server Private Key Permission Vulnerability in Windows at http://www.ssh.com/company/newsroom/article/653/.
- SSH Tectia Server Download Web page, SSH Tectia Server Downloads at http://www.ssh.com/support/downloads/tectia-server/updates-and-packages-4-3.html.
- BID-14116: SSH Secure Shell/Tectia Server on Windows Host Identification Key Permission Vulnerability
- CVE-2005-2146: SSH Tectia Server 4.3.1 and earlier, and SSH Secure Shell for Windows Servers, uses insecure permissions when generating the Secure Shell host identification key, which allows local users to access the key and spoof the server.
- SA15894: SSH Tectia Server Insecure Private Key Permissions
- US-CERT VU#973635: Some SSH servers on Microsoft Windows set insecure permissions for the host identification key file
Reported:
Jun 30, 2005
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