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AUSCERT External Security Bulletin Redistribution
ESB-2007.0346 -- [Win][Linux][HP-UX][Solaris][AIX]
Security Vulnerabilities in the SOCKS Module of Sun Java
System Web Proxy Server 4.0
19 September 2007
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AusCERT Security Bulletin Summary
---------------------------------
Product: Sun Java System Web Proxy Server 4.0
Publisher: Sun Microsystems
Operating System: AIX
HP-UX
Linux variants
Solaris
Windows
Impact: Execute Arbitrary Code/Commands
Access: Remote/Unauthenticated
CVE Names: CVE-2007-2881
Original Bulletin:
http://sunsolve.sun.com/search/printfriendly.do?assetkey=1-26-102927-1
http://labs.idefense.com/intelligence/vulnerabilities/display.php?id=536
Revision History: September 19 2007: Patch released for HP-UX systems
September 12 2007: Service pack 5 and patches available
and CVE number added
May 28 2007: Initial Release
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Sun(sm) Alert Notification
* Sun Alert ID: 102927
* Synopsis: Security Vulnerabilities in the SOCKS Module of Sun Java
System Web Proxy Server 4.0
* Category: Security
* Product: Sun Java System Web Proxy Server 4.0
* BugIDs: 6537736, 6537745
* Avoidance: Upgrade
* State: Resolved
* Date Released: 25-May-2007
* Date Closed: 25-May-2007
* Date Modified: 26-Jul-2007, 10-Sep-2007, 14-Sep-2007
1. Impact
Two buffer overflows have been found in the SOCKS module of Sun Java
System Web Proxy Server 4.0 which may allow a local or remote
unprivileged user the ability to execute arbitrary code with the
privileges of the SOCKS server or cause a Denial of Service (DoS) to
the SOCKS server. The SOCKS server normally runs with root privileges.
One of the vulnerabilities (BugID 6537736) requires authentication
before it can be exploited; however, the default configuration is for
no authentication to be required to access the SOCKS server.
Sun acknowledges with thanks, iDefense (http://www.idefense.com),
for bringing these issues to our attention.
These issues are also described in the following document:
http://labs.idefense.com/intelligence/vulnerabilities/display.php?i
d=536
2. Contributing Factors
These issues can occur in the following releases:
SPARC Platform
* Sun Java System Web Proxy Server 4.0 without Service Pack 5
* Sun Java System Web Proxy Server 4.0 without patch 120981-12
x86 Platform
* Sun Java System Web Proxy Server 4.0 without Service Pack 5
* Sun Java System Web Proxy Server 4.0 without patch 120982-12
Linux
* Sun Java System Web Proxy Server 4.0 without Service Pack 5
* Sun Java System Web Proxy Server 4.0 without patch 120983-12
HP-UX
* Sun Java System Web Proxy Server 4.0 without Service Pack 5
* Sun Java System Web Proxy Server 4.0 without patch 123532-02
Windows
* Sun Java System Web Proxy Server 4.0 without Service Pack 5
* Sun Java System Web Proxy Server 4.0 without patch 126325-02
To determine the version of Sun Java System Proxy Server on a system,
the following command can be run:
$ <ps_install>/bin/ns-proxy -v
Sun ONE Web Proxy Server 3.6-SP9 B2006.191.1801 SP9
(Where <ps_install> is the installation directory of the Proxy
Server).
3. Symptoms
There are no predictable symptoms that would indicate the described
issues have been exploited.
4. Relief/Workaround
To prevent these issues until an upgrade or patches can be applied,
the SOCKS proxy server should be disabled if it is not being utilized.
This can be accomplished by shutting down the SOCKS server using the
'stop-sockd' script under the Proxy Server instance directory.
5. Resolution
These issues are addressed in the following releases:
SPARC Platform
* Sun Java System Web Proxy Server 4.0 with Service Pack 5 or later
* Sun Java System Web Proxy Server 4.0 with patch 120981-12 or
later
x86 Platform
* Sun Java System Web Proxy Server 4.0 with Service Pack 5 or later
* Sun Java System Web Proxy Server 4.0 with patch 120982-12 or
later
Linux
* Sun Java System Web Proxy Server 4.0 with Service Pack 5 or later
* Sun Java System Web Proxy Server 4.0 with patch 120983-12 or
later
HP-UX
* Sun Java System Web Proxy Server 4.0 with Service Pack 5 or later
* Sun Java System Web Proxy Server 4.0 with patch 123532-02 or
later
Windows
* Sun Java System Web Proxy Server 4.0 with Service Pack 5 or later
* Sun Java System Web Proxy Server 4.0 with patch 126325-02 or
later
Sun Java System Web Proxy Server 4.0 Service Pack 5 is available for
download at http://www.sun.com/download/products.xml?id=4648dc96
Change History
26-Jul-2007:
* Updated Contributing Factors and Resolution sections
10-Sep-2007:
* Updated Contributing Factors and Resolution sections
14-Sep-2007:
* Updated Contributing Factors and Resolution sections
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 2000-2006 Sun Microsystems, Inc., 4150 Network Circle, Santa
Clara, CA 95054 U.S.A. All rights reserved
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