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Category:   Application (VPN)  >   OpenSSH Vendors:   OpenSSH.org
(IBM Issues Fix for IBM AIX) OpenSSH Bug Lets Remote Authenticated Users Bypass XSECURITY Timeout Security Restrictions
SecurityTracker Alert ID:  1033479
SecurityTracker URL:  http://securitytracker.com/id/1033479
CVE Reference:   CVE-2015-5352   (Links to External Site)
Date:  Sep 5 2015
Impact:   Host/resource access via network
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): prior to 6.9
Description:   A vulnerability was reported in OpenSSH. A remote authenticated user can bypass security restrictions.

A remote authenticated user with a forwarded X11 connection can bypass XSECURITY restrictions to continue the connection after the ForwardX11Timeout has expired.

Jann Horn reported this vulnerability.

Impact:   A remote authenticated user can bypass security controls to continue the connection after the ForwardX11Timeout has expired.
Solution:   IBM has issued a fix for IBM AIX.

The IBM advisory is available at:

https://aix.software.ibm.com/aix/efixes/security/openssh_advisory5.asc

Vendor URL:  aix.software.ibm.com/aix/efixes/security/openssh_advisory5.asc (Links to External Site)
Cause:   Access control error, State error
Underlying OS:  UNIX (AIX)
Underlying OS Comments:  5.3, 6.1, 7.1

Message History:   This archive entry is a follow-up to the message listed below.
Jul 7 2015 OpenSSH Bug Lets Remote Authenticated Users Bypass XSECURITY Timeout Security Restrictions



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