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SYMSA-2007-015.txt

SYMSA-2007-015.txt
Posted Dec 20, 2007
Authored by Oliver Karow | Site symantec.com

Symantec Vulnerability Research SYMSA-2007-015 - The Perforce P4Web is susceptible to a denial of service condition via resource starvation.

tags | advisory, denial of service
advisories | CVE-2007-6349
SHA-256 | bfe8c04d73a7f234220539b93e7b249fa18b8c376a21250a1acd6cd0e84a2e1a

SYMSA-2007-015.txt

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Symantec Vulnerability Research
http://www.symantec.com/research
Security Advisory

Advisory ID: SYMSA-2007-015
Advisory Title: Perforce P4Web Denial Of Service through resource
starvation
Author: Oliver Karow / Oliver_Karow@symantec.com
Release Date: 19 DEC 2007
Application: Perforce 2006.1
Platform: Win32
Severity: Remotely exploitable - Denial Of Service
Vendor status: Resolved
CVE Number: CVE-2007-6349
Reference: http://www.securityfocus.com/bid/26806

Overview:

- From wikipedia: "Perforce is a commercial Revision Control (RC)
system. It is developed by Perforce Software, Inc. and was founded
in 1995 by Christopher Seiwald. The Perforce system is based on a
client/server model with the server managing the collection of
source versions in one or more depots. The server software runs on
the Unix, Mac OS X, or Microsoft Windows operating systems.

The client provides graphical and command line tools for a large
number of operating systems. Also available is a suite of plugins
that integrate with various programming IDEs and third party
applications, such as XCode, Autodesk 3D Studio Max, Alias Maya,
Adobe Photoshop, Microsoft Office, Eclipse and Emacs.

Other features of the system include support for reporting
(i.e. notifying users when a file has changed), branching and
merging, and defect tracking."

There is a denial of service (DoS) vulnerability in the P4Web Daemon
which make it possible to enforce a full CPU usage of the system, by
sending a single, special crafted HTTP request.


Details:

A single HTTP request with the Content-Length header variable set
to a value greater than zero in a request which no body, will cause
the P4Webs.exe process to consume 99% of CPU time on the target
system. of up to 99%.

The attack can be executed remotely. No authentication is required
for exploitation.


Vendor Response:
Perforce has confirmed an issue with Windows-based operating
systems and P4Web versions 2006.2 and prior that can result
in the P4Web host machine becoming unusable due to excessive
CPU usage. This was discovered by our QA department in
February of 2007, and addressed in our 2007.2 release.

Recommendation:
Users concerned about this issue should upgrade to P4Web
2007.2 or later, available at no charge from:
ftp://ftp.perforce.com/perforce/r07.2/bin.ntx86/p4webinst.exe


Common Vulnerabilities and Exposures (CVE) Information:


The Common Vulnerabilities and Exposures (CVE) project has assigned
the following names to these issues. These are candidates for
inclusion in the CVE list (http://cve.mitre.org), which standardizes
names for security problems.

CVE-2007-6349

- -------Symantec Consulting Services Advisory Information-------

For questions about this advisory, or to report an error:
cs_advisories@symantec.com

For details on Symantec's Vulnerability Reporting Policy:
http://www.symantec.com/research/Symantec-Responsible-Disclosure.pdf

Consulting Services Advisory Archive:
http://www.symantec.com/research/

Consulting Services Advisory PGP Key:
http://www.symantec.com/research/Symantec_Consulting_Services_Advisories_PGP.asc

- -------------Symantec Product Advisory Information-------------

To Report a Security Vulnerability in a Symantec Product:
secure@symantec.com

For general information on Symantec's Product Vulnerability
reporting and response:
http://www.symantec.com/security/

Symantec Product Advisory Archive:
http://www.symantec.com/avcenter/security/SymantecAdvisories.html

Symantec Product Advisory PGP Key:
http://www.symantec.com/security/Symantec-Vulnerability-Management-Key.asc

- ---------------------------------------------------------------

Copyright (c) 2007 by Symantec Corp.
Permission to redistribute this alert electronically is granted
as long as it is not edited in any way unless authorized by
Symantec Consulting Services. Reprinting the whole or part of
this alert in any medium other than electronically requires
permission from cs_advisories@symantec.com.

Disclaimer
The information in the advisory is believed to be accurate at the
time of publishing based on currently available information. Use
of the information constitutes acceptance for use in an AS IS
condition. There are no warranties with regard to this information.
Neither the author nor the publisher accepts any liability for any
direct, indirect, or consequential loss or damage arising from use
of, or reliance on, this information.

Symantec, Symantec products, and Symantec Consulting Services are
registered trademarks of Symantec Corp. and/or affiliated companies
in the United States and other countries. All other registered and
unregistered trademarks represented in this document are the sole
property of their respective companies/owners.

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