JVN#09470767 Apache Tomcat fails to properly handle cookie value

Overview

Apache Tomcat from the Apache Software Foundation contains a vulnerability that could allow a remote attacker to coerce a crafted cookie to a user's web browser.

Products Affected

Apache Tomcat 4.1.0 through 4.1.36
Apache Tomcat 5.5.0 through 5.5.25
Apache Tomcat 6.0.0 through 6.0.14

For more information, refer to the developer's website.

Description

Apache Tomcat from the Apache Software Foundation is a web container that implements both Java Servlets and JavaServer Pages.
Apache Tomcat from the Apache Software Foundation contains a vulnerability that could allow a remote attacker to coerce a crafted cookie to a user's web browser.
The developer reports that this issue exists because of an incomplete fix for CVE-2007-3385.

Impact

A remote attacker could send a crafted cookie to a user's web browser, which may result in session hijacking.

Solution

Update the Software
For Apache Tomcat 6.0.x or Apache Tomcat 5.5.x:
Update the software to the latest version according to the information released by the developer.

For Apache Tomcat 4.1.x:
As of February 8, 2008, the Apache Tomcat Project has not yet released the latest version resolving the vulnerability. They report that they will release Apache Tomcat 4.1.37 soon.

For more information, refer to the developer's website.

Vendor Status

Vendor	Status	Last Update	Vendor Notes
Hitachi	Not Vulnerable	2008/02/12
NEC Corporation	Not Vulnerable	2008/02/26

Vendor	Link
Apache Tomcat	Security Updates
	Apache Tomcat 6.x vulnerabilities CVE-2007-5333
	Apache Tomcat 5.x vulnerabilities CVE-2007-5333
	Apache Tomcat 4.x vulnerabilities CVE-2007-5333

References

JPCERT/CC Addendum

Vulnerability Analysis by JPCERT/CC

Analyzed on 2008.02.12

Measures	Conditions	Severity
Access Required	Routed - can be attacked over the Internet using packets	High
Authentication	None - anonymous or no authentication (IP addresses do not count)	High
User Interaction Required	Simple - the user must be convinced to take a standard action that does not feel harmful to most users, such as click on a link or view a file	Medium
Exploit Complexity	Low - little to no expertise and/or luck required to exploit (cross-site scripting)	High

Description of each analysis measures

Credit

Yoshihiro Ishikawa of LAC Co., Ltd. reported this vulnerability to IPA.
JPCERT/CC coordinated with the vendors under Information Security Early Warning Partnership.

Other Information

JPCERT Alert
JPCERT Reports
CERT Advisory
CPNI Advisory
TRnotes
CVE	CVE-2007-5333
JVN iPedia	JVNDB-2008-000009