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AUSCERT External Security Bulletin Redistribution
ESB-2015.0693
Vulnerability in Apache Tomcat affects IBM uBuild (CVE-2014-0227)
20 March 2015
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AusCERT Security Bulletin Summary
---------------------------------
Product: IBM uBuild
Publisher: IBM
Operating System: Linux variants
Windows
Impact/Access: Cross-site Scripting -- Remote with User Interaction
Provide Misleading Information -- Remote/Unauthenticated
Unauthorised Access -- Remote/Unauthenticated
Resolution: Patch/Upgrade
CVE Names: CVE-2014-0227
Reference: ESB-2015.0586
ESB-2015.0572
ESB-2015.0391
ESB-2015.0311
Original Bulletin:
http://www-01.ibm.com/support/docview.wss?uid=swg21698472
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Vulnerability in Apache Tomcat affects IBM uBuild (CVE-2014-0227)
Document information
More support for:
IBM uBuild
General Information
Software version:
5.0, 5.0.1, 5.0.1.1, 5.0.1.2, 5.0.1.3, 5.0.1.4, 5.0.1.5
Operating system(s):
Linux, Windows
Reference #:
1698472
Modified date:
2015-03-18
Security Bulletin
Summary
Apache Tomcat is vulnerable to HTTP request smuggling. Apache Tomcat is used
by IBM uBuild.
Vulnerability Details
CVE-ID: CVE-2014-0227
Description: Apache Tomcat is vulnerable to HTTP request smuggling. A remote
attacker could send a specially-crafted request in a malformed chunked header
to the Web server to cause multiple processing conflicts on the servers. An
attacker could exploit this vulnerability to poison the web cache, bypass web
application firewall protection, and conduct XSS attacks.
CVSS Base Score: 4.3
CVSS Temporal Score: See http://xforce.iss.net/xforce/xfdb/100751 for the
current score
CVSS Environmental Score*: Undefined
CVSS Vector: (AV:N/AC:M/Au:N/C:N/I:P/A:N)
Affected Products and Versions
IBM uBuild 5.0, 5.0.1, 5.0.1.1, 5.0.1.2, 5.0.1.3, 5.0.1.4, and 5.0.1.5 on all
supported platforms.
Remediation/Fixes
Upgrade to IBM uBuild Fix Pack 6 (5.0.1.6) for 5.0.1 as a new version of
Apache is now included in the installer.
Workarounds and Mitigations
Note: This mitigation is intended for the servers in "Affected Products and
Versions" only. It should not be applied on later releases.
Mitigating HTTP request smuggling through Apache Tomcat
1. Navigate to <server_install_dir>/opt/tomcat.
2. Back up server.xml and tomcat.keystore files from the conf directory.
3. Back up the webapps directory.
4. Go up a directory to <server_install_dir>/opt and delete the tomcat directory.
5. Extract Apache Tomcat 6.0.43 or later into <server_install_dir>/opt and rename
the directory to tomcat, if needed.
6. In the new tomcat directory, remove the webapps, logs, and temp directories.
Remove the RELEASE-NOTES and RUNNING.txt files as well as they are not needed.
7. Drop the server.xml and tomcat.keystore files that were backed up earlier into
the new conf directory. Overwrite the existing files, if prompted.
8. Drop the webapps directory that was backed up earlier into the root of the
tomcat directory.
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alerts like this.
References
Complete CVSS Guide
On-line Calculator V2
Related information
IBM Secure Engineering Web Portal
IBM Product Security Incident Response Blog
Acknowledgement
None
Change History
* 13 March 2015: Original copy published
*The CVSS Environment Score is customer environment specific and will
ultimately impact the Overall CVSS Score. Customers can evaluate the impact of
this vulnerability in their environments by accessing the links in the
Reference section of this Security Bulletin.
Disclaimer
According to the Forum of Incident Response and Security Teams (FIRST), the
Common Vulnerability Scoring System (CVSS) is an "industry open standard
designed to convey vulnerability severity and help to determine urgency and
priority of response." IBM PROVIDES THE CVSS SCORES "AS IS" WITHOUT WARRANTY
OF ANY KIND, INCLUDING THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
FOR A PARTICULAR PURPOSE. CUSTOMERS ARE RESPONSIBLE FOR ASSESSING THE IMPACT
OF ANY ACTUAL OR POTENTIAL SECURITY VULNERABILITY.
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