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Date: Tue Dec 18 2007 - 14:14:02 CST
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Symantec Vulnerability Research
Advisory ID: SYMSA-2007-015
Advisory Title: Perforce P4Web Denial Of Service through resource
Author: Oliver Karow / Oliver_Karowsymantec.com
Release Date: 19 DEC 2007
Application: Perforce 2006.1
Severity: Remotely exploitable - Denial Of Service
Vendor status: Resolved
CVE Number: CVE-2007-6349
- 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.
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
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.
Users concerned about this issue should upgrade to P4Web
2007.2 or later, available at no charge from:
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.
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