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Apache Tomcat Security Manager Bypass

Apache Tomcat Security Manager Bypass
Posted May 14, 2015
Authored by Mark Thomas | Site tomcat.apache.org

Malicious web applications could use expression language to bypass the protections of a Security Manager as expressions were evaluated within a privileged code section. This issue only affects installations that run web applications from untrusted sources. Apache Tomcat versions 8.0.0-RC1 to 8.0.15, 7.0.0 to 7.0.57, and 6.0.0 to 6.0.43 are affected.

tags | advisory, web, bypass
advisories | CVE-2014-7810
MD5 | 410d6bc8ebb05d4a1ec751f0d6ef088b

Apache Tomcat Security Manager Bypass

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Hash: SHA256

CVE-2014-7810 Security Manager Bypass

Severity: Moderate

Vendor: The Apache Software Foundation

Versions Affected:
- - Apache Tomcat 8.0.0-RC1 to 8.0.15
- - Apache Tomcat 7.0.0 to 7.0.57
- - Apache Tomcat 6.0.0 to 6.0.43

Description:
Malicious web applications could use expression language to bypass the
protections of a Security Manager as expressions were evaluated within
a privileged code section.
This issue only affects installations that run web applications from
untrusted sources.

Mitigation:
Users of affected versions should apply one of the following mitigations
- - Upgrade to Apache Tomcat 8.0.17 or later
(8.0.16 has the fix but was not released)
- - Upgrade to Apache Tomcat 7.0.59 or later
(7.0.58 has the fix but was not released)
- - Upgrade to Apache Tomcat 6.0.44 or later


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

References:
[1] http://tomcat.apache.org/security-8.html
[2] http://tomcat.apache.org/security-7.html
[3] http://tomcat.apache.org/security-6.html

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