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Apache Tomcat CSRF Token Leak

Apache Tomcat CSRF Token Leak
Posted Feb 22, 2016
Authored by Mark Thomas | Site tomcat.apache.org

The index page of the Manager and Host Manager applications included a valid CSRF token when issuing a redirect as a result of an unauthenticated request to the root of the web application. This token could then be used by an attacker to construct a CSRF attack. Apache Tomcat versions 7.0.1 through 7.0.67, 8.0.0.RC1 through 8.0.31, and 9.0.0.M1 are affected.

tags | advisory, web, root
advisories | CVE-2015-5351
SHA-256 | cac499db9a90243eb7e3a3ae64996e75bfc026156676e4f5e2b513a78ec60214

Apache Tomcat CSRF Token Leak

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CVE-2015-5351 Apache Tomcat CSRF token leak

Severity: Moderate

Vendor: The Apache Software Foundation

Versions Affected:
- - Apache Tomcat 7.0.1 to 7.0.67
- - Apache Tomcat 8.0.0.RC1 to 8.0.31
- - Apache Tomcat 9.0.0.M1

Description:
The index page of the Manager and Host Manager applications included a
valid CSRF token when issuing a redirect as a result of an
unauthenticated request to the root of the web application. This token
could then be used by an attacker to construct a CSRF attack.

Mitigation:
Users of affected versions should apply one of the following mitigations
- - Upgrade to Apache Tomcat 9.0.0.M3 or later
(9.0.0.M2 has the fix but was not released)
- - Upgrade to Apache Tomcat 8.0.32 or later
(8.0.31 has the fix but was not released)
- - Upgrade to Apache Tomcat 7.0.68 or later

Credit:
This issue was discovered by the Apache Tomcat security team.

References:
[1] http://tomcat.apache.org/security-9.html
[2] http://tomcat.apache.org/security-8.html
[3] http://tomcat.apache.org/security-7.html



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