Security Vulnerability in the Solaris X Server May Lead to Unauthorized Disclosure of Information on Access Restricted Files and Directories |
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| Category : | Security | | Release Phase : | Resolved | | Product : | Solaris 9 Operating System
Solaris 10 Operating System
Solaris 8 Operating System
| | Bug Id : | 6642763, 6642762
| | Date of Workaround Release : | 17-Jan-2008
| | Date of Resolved Release : | 06-FEB-2008
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Security Vulnerability in the Solaris X Server May Lead to Unauthorized Disclosure of Information on Access Restricted Files and Directories (see below for full details) 1. Impact
A
Security vulnerability in the Solaris X11 display server (Xorg(1) and
Xsun(1)) and the Solaris X11 print server (Xprt(1)), related to the
handling of command line options may allow a local unprivileged user to
determine the existence of files or directories in access restricted
directories. The ability to gather information on access
restricted files or directories indicates a loss of confidentiality.
This issue is described in the following document:
2. Contributing Factors
These issues can occur in the following releases:
SPARC Platform x86 Platform
3. Symptoms
There are no predictable symptoms that would indicate the described issue has occurred.
4. Relief/Workaround
To work around the described issue, remove the setuid(2) and/or
setgid(2) bit from Xsun, Xorg and Xprt. To remove the setuid(2) and/or
setgid(2) bit from Xsun, Xorg and Xprt, the following commands can be
run as "root":
# chmod 0755 /usr/openwin/bin/Xsun /usr/openwin/bin/Xprt
# chmod 0755 /usr/X11/bin/Xorg /usr/X11/bin/i386/Xorg /usr/X11/bin/amd64/Xorg
Note: Not all of the above binaries may be found on all systems.
Warning: When Xsun, Xorg and Xprt are ran directly or from xinit, removing the setuid/setgid bits from these binaries will disable:
- All ability to run Xsun on Solaris x86
- Power management for Solaris SPARC
- Interactive Process Priority control
- Xsun, Xorg and Xprt ability to open Unix domain sockets and named pipetransports in the protected /tmp/.X11-* directories
Note: dtlogin(1X) and gdm(1m) will not be affected and will still be able to start with the privileges of the "root" user.
5. Resolution
This issue is addressed in the following releases: SPARC Platform
x86 Platform
- Solaris 8 with patch 119068-09 or later
- Solaris 9 with patch 112786-52 or later (Xsun)
- Solaris 9 with patch 118908-04 or later (Xorg)
- Solaris 10 with patch 119060-37 or later (Xsun)
- Solaris 10 with patch 125720-17 or later (Xorg)
For more information on Security Sun Alerts, see Sun Infodoc 91209.
This Sun Alert notification is being provided to you on an "AS IS" basis. This Sun Alert notification may contain information provided by third parties. The issues described in this Sun Alert notification may or may not impact your system(s). Sun makes no representations, warranties, or guarantees as to the information contained herein. ANY AND ALL WARRANTIES, EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE HEREBY DISCLAIMED. BY ACCESSING THIS DOCUMENT YOU ACKNOWLEDGE THAT SUN SHALL IN NO EVENT BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, PUNITIVE, OR CONSEQUENTIAL DAMAGES THAT ARISE OUT OF YOUR USE OR FAILURE TO USE THE INFORMATION CONTAINED HEREIN. This Sun Alert notification contains Sun proprietary and confidential information. It is being provided to you pursuant to the provisions of your agreement to purchase services from Sun, or, if you do not have such an agreement, the Sun.com Terms of Use. This Sun Alert notification may only be used for the purposes contemplated by these agreements.
Copyright 2000-2008 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, CA 95054 U.S.A. All rights reserved.Modification History06-Feb-2008: Update Contributing Factors and Resolution sections - STATE: RESOLVED
18-Jan-2007: Update Contributing Factors, Relief/Workaround, and Resolution sections.
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