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AUSCERT External Security Bulletin Redistribution
ESB-2011.0796
A number of vulnerabilities has been identified in IBM
WebSphere Application Server Community Edition
1 August 2011
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AusCERT Security Bulletin Summary
---------------------------------
Product: IBM WebSphere Application Server Community Edition
Publisher: IBM
Operating System: AIX
Linux variants
Solaris
Windows
Impact/Access: Denial of Service -- Remote/Unauthenticated
Unauthorised Access -- Existing Account
Resolution: Patch/Upgrade
CVE Names: CVE-2011-2526 CVE-2011-0534 CVE-2010-3718
Reference: ESB-2011.0726
ESB-2011.0119
Original Bulletin:
http://www-01.ibm.com/support/docview.wss?uid=swg21507512
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Tomcat fix for security vulnerability CVE-2010-3718 , CVE-2011-2526 and
CVE-2011-0534
Flash (Alert)
Document information
WebSphere Application Server Community Edition
Software version:
2.1.1.5
Operating system(s):
AIX, Linux, Solaris, Windows
Software edition:
Elite, Enhanced, Entry
Reference #:
1507512
Modified date:
2011-07-29
Abstract
Apache Tomcat 7.0.0 through 7.0.3, 6.0.x, and 5.5.x, when running within a
SecurityManager, does not make the ServletContext attribute read-only, which
allows local web applications to read or write files outside of the intended
working directory, as demonstrated using a directory traversal attack.
Apache Tomcat 5.5.x before 5.5.34, 6.x before 6.0.33, and 7.x before 7.0.19,
when sendfile is enabled for the HTTP APR or HTTP NIO connector, does not
validate certain request attributes, which allows local users to bypass
intended file access restrictions or cause a denial of service (infinite loop
or JVM crash) by leveraging an untrusted web application.
Apache Tomcat 7.0.0 through 7.0.6 and 6.0.0 through 6.0.30 does not enforce the
maxHttpHeaderSize limit for requests involving the NIO HTTP connector, which
allows remote attackers to cause a denial of service (OutOfMemoryError) via a
crafted request.
Content
Tomcat has provided a fix to address this security vulnerability CVE-2010-3718,
CVE-2011-2526 and CVE-2011-0534. The fix jars have been built for WebSphere
Application Server Community Edition version 2.1.1.5 as recommended by tomcat.
The following JAR contains the patch for the Tomcat catalina library v6.0.29
which is used by WebSphere Application Server Community Edition v2.1.1.5. The
fixed JAR can be replaced in WebSphere Application Server Community Edition
v2.1.1.5 installations.
* Stop the server if it is running and replace the JAR as specified below:
catalina-6.0.29.0.jar
* Backup the existing one and replace with the new fix JAR from the
following directory of the WebSphere Application Server Community Edition
v2.1.1.5 installation:
<WASCE_HOME>\repository\org\apache\geronimo\ext\tomcat\catalina\6.0.29.0
catalina-6.0.29.0.jar
Copyright and trademark information
IBM, the IBM logo and ibm.com are trademarks of International Business Machines
Corp., registered in many jurisdictions worldwide. Other product and service
names might be trademarks of IBM or other companies. A current list of IBM
trademarks is available on the Web at "Copyright and trademark information" at
www.ibm.com/legal/copytrade.shtml.
Document information
WebSphere Application Server Community Edition
Software version:
2.1.1.5
Operating system(s):
AIX, Linux, Solaris, Windows
Software edition:
Elite, Enhanced, Entry
Reference #:
1507512
Modified date:
2011-07-29
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