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AUSCERT External Security Bulletin Redistribution
ESB-2008.0808 -- [Win][Linux][HP-UX][Solaris]
A Security Vulnerability in the ftp Subsystem of Sun Java System Web Proxy
Server 4.0 May Lead to a Denial of Service (DoS)
18 August 2008
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AusCERT Security Bulletin Summary
---------------------------------
Product: Sun Java System Web Proxy Server 4.0
Publisher: Sun Microsystems
Operating System: Solaris
Linux variants
HP-UX
Windows
Impact: Denial of Service
Access: Remote/Unauthenticated
CVE Names: CVE-2008-3683
Original Bulletin:
http://sunsolve.sun.com/search/printfriendly.do?assetkey=1-66-240327-1
Revision History: August 18 2008: Added CVE information
August 14 2008: Initial Release
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Solution Type: Sun Alert
Solution 240327 : A Security Vulnerability in the ftp Subsystem of
Sun Java System Web Proxy Server 4.0 May Lead to a Denial of Service
(DoS)
Bug ID: 6590476
Product
Sun Java System Web Proxy Server 4.0
Date of Resolved Release: 12-Aug-2008
SA Document Body
Security vulnerability in the FTP subsystem of Sun Java System Web Proxy
Server 4.0
1. Impact
A Security vulnerability in the FTP subsystem of Sun Java System Web
Proxy Server 4.0 may allow a local or remote unprivileged user to
prevent the proxy server from accepting new connections, resulting in
a Denial of Service (DoS) to the proxy server.
Sun acknowledges, with thanks, Joxean Koret for bringing this issue to
our attention.
2. Contributing Factors
This issues can occur in the following releases:
SPARC Platform
* Sun Java System Web Proxy Server 4.0 through 4.0.5 without Service
Pack 6
* Sun Java System Web Proxy Server 4.0 through 4.0.5 without patch
120981-14
x86 Platform
* Sun Java System Web Proxy Server 4.0 through 4.0.5 without Service
Pack 6
* Sun Java System Web Proxy Server 4.0 through 4.0.5 without patch
120982-14
Linux
* Sun Java System Web Proxy Server 4.0 through 4.0.5 without Service
Pack 6
* Sun Java System Web Proxy Server 4.0 through 4.0.5 without patch
120983-14
HP-UX
* Sun Java System Web Proxy Server 4.0 through 4.0.5 without Service
Pack 6
* Sun Java System Web Proxy Server 4.0 through 4.0.5 without patch
123532-04
Windows
* Sun Java System Web Proxy Server 4.0 through 4.0.5 without Service
Pack 6
* Sun Java System Web Proxy Server 4.0 through 4.0.5 without patch
126325-04
To determine the version of Sun Java System Web Proxy Sever, run the
following command:
$ <ps_install>/bin/proxy/bin/proxyd -v
Sun Microsystems, Inc.
Sun Java System Web Proxy Server 4.0.6 B05/12/2007 13:24
(Where <ps_install> is the installation directory of the Proxy
Server).
3. Symptoms
Should the described issue occur, Proxy server stops accepting new
connections with the following error message in the proxy server
instance's "access" log file:
[03/Mar/2008:02:10:35] failure (32372): HTTP3069: Error accepting
connection (PR_PROC_DESC_TABLE_FULL_ERROR: file descriptor table full)
4. Workaround
If this issue has been exploited on a server, it may be possible to
recover from the Denial of Service (DoS) condition by restarting the
server. This can be done by using the following command:
$<ps_install>/<ps_instance/restart
(Where <ps_install> is the installation directory of the Proxy Server,
and <ps_instance> is the Proxy Server instance directory).
5. Resolution
This issue is addressed in the following releases:
SPARC Platform
* Sun Java System Web Proxy Server 4.0 through 4.0.5 with Service
Pack 6 or later
* Sun Java System Web Proxy Server 4.0 through 4.0.5 with patch
120981-14 or later
x86 Platform
* Sun Java System Web Proxy Server 4.0 through 4.0.5 with Service
Pack 6 or later
* Sun Java System Web Proxy Server 4.0 through 4.0.5 with patch
120982-14 or later
Linux
* Sun Java System Web Proxy Server 4.0 through 4.0.5 with Service
Pack 6 or later
* Sun Java System Web Proxy Server 4.0 through 4.0.5 with patch
120983-14 orlater
HP-UX
* Sun Java System Web Proxy Server 4.0 through 4.0.5 with Service
Pack 6 or later
* Sun Java System Web Proxy Server 4.0 through 4.0.5 with patch
123532-04 or later
Windows
* Sun Java System Web Proxy Server 4.0 through 4.0.5 with Service
Pack 6 or later
* Sun Java System Web Proxy Server 4.0 through 4.0.5 without patch
126325-04 or later
Sun Java System Web Proxy Server 4.0.7 is available for download at:
https://cds.sun.com/is-bin/INTERSHOP.enfinity/WFS/CDS-CDS_SMI-Site/
en_US/-/USD/ViewProductDetail-Start?ProductRef=SJPrxySrv-4.0.7-OTH-G-F
@CDS-CDS_SMI
For more information on Security Sun Alerts, see Technical
Instruction ID 213557.
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
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