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Category:   Application (VPN)  >   SSH Tectia Server Vendors:   SSH Communications
SSH Tectia Server Insecure File Permissions May Let Local Users Gain Elevated Privileges
SecurityTracker Alert ID:  1017913
SecurityTracker URL:  http://securitytracker.com/id/1017913
CVE Reference:   CVE-2007-2063   (Links to External Site)
Updated:  May 14 2008
Original Entry Date:  Apr 16 2007
Impact:   User access via local system
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): prior to 5.4.0
Description:   A vulnerability was reported in SSH Tectia Server. A local user may be able to obtain elevated privileges on the target system.

The SSH Tectia Server may be run as a started task with an empty umask on some z/OS installations. As a result, some HFS files may be created with world-writable permissions.

A local user may be able to exploit this to gain elevated privileges.

Impact:   A local user can obtain elevated privileges on the target system.
Solution:   The vendor has issued a fixed version (5.4.0).

The SSH advisory is available at:

http://www.ssh.com/documents/33/SSH_Tectia_Server_5.4.0_zOS_releasenotes.txt

Vendor URL:  www.ssh.com/documents/33/SSH_Tectia_Server_5.4.0_zOS_releasenotes.txt (Links to External Site)
Cause:   Access control error
Underlying OS:   z/OS

Message History:   None.


 Source Message Contents

Date:  Mon, 16 Apr 2007 10:29:53 -0400
Subject:  Release Notes for SSH Tectia Server 5.4.0 for IBM z/OS


http://www.ssh.com/documents/33/SSH_Tectia_Server_5.4.0_zOS_releasenotes.txt

  - Server creates world-writable directories.
    On some z/OS installations the server could be run as a started task 
    with an empty umask, which caused some created HFS files to have 
    insecure (world-writable) permissions.
    If upgrading to this release, you must verify that the environment file
    used by your sshd2 started task script (originally called SSHENV in the
    SAMPLES directory) contains an appropriate _BPX_BATCH_UMASK declaration.
 
 


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