CVE-2012-4529

Severity: medium (CVSS 4.3 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 2.0% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2013-10-28 · updated 2026-06-16

Description

The org.apache.catalina.connector.Response.encodeURL method in Red Hat JBoss Web 7.1.x and earlier, when the tracking mode is set to COOKIE, sends the jsessionid in the URL of the first response of a session, which allows remote attackers to obtain the session id (1) via a man-in-the-middle attack or (2) by reading a log.

Affected products

RedHat Jboss Community Application Server: through 7.1.1; 5.0.0, 5.0.1, 5.1.0, 6.0.0, 6.1.0, 7.0.0 (+3)
Red Hat JBoss EAP: 6.0.0

References

http://ocpsoft.org/support/topic/session-id-is-appended-as-url-path-parameter-in-very-first-request/
http://rhn.redhat.com/errata/RHSA-2013-0833.html
http://rhn.redhat.com/errata/RHSA-2013-0834.html
http://rhn.redhat.com/errata/RHSA-2013-0839.html
http://rhn.redhat.com/errata/RHSA-2013-1437.html
https://issues.jboss.org/browse/JBWEB-249
http://ocpsoft.org/support/topic/session-id-is-appended-as-url-path-parameter-in-very-first-request/
http://rhn.redhat.com/errata/RHSA-2013-0833.html
http://rhn.redhat.com/errata/RHSA-2013-0834.html
http://rhn.redhat.com/errata/RHSA-2013-0839.html
http://rhn.redhat.com/errata/RHSA-2013-1437.html
https://issues.jboss.org/browse/JBWEB-249

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