Release Notes

Security Advisory 2017-03: Security Update for all OTRS Versions

OTRS Group, the world’s leading provider of the OTRS service management suite, including the fully managed OTRS solution and the ITIL® V3-compliant IT service management software OTRS::ITSM.


June 06, 2017 — Please read carefully and check if the version of your OTRS system is affected by this vulnerability.

Please send information regarding vulnerabilities in OTRS to:


Security Advisory Details


  • ID: OSA-2017-03
  • Date: 2017-06-06
  • Title: Incorrect Access Control in OTRS
  • Severity: High
  • Product: OTRS 5.0.x, OTRS 4.0.x, OTRS 3.3.x
  • Fixed in: OTRS 5.0.20, OTRS 4.0.24, OTRS 3.3.17
  • References: CVE-2017-9324


Vulnerability Description


This advisory covers vulnerabilities discovered in the OTRS framework.


Privilege Escalation


An attacker with agent permission is capable by opening a specific URL in a browser to gain administrative privileges / full access. Afterward, all system settings can be read and changed.


Affected by this vulnerability are all releases of OTRS 5.0.x up to and including 5.0.19, OTRS 4.0.x up to and including 4.0.23 and OTRS 3.3.x up to and including 3.3.16.

This vulnerability is fixed in the latest versions of OTRS, and it is recommended to upgrade to the latest patch level.

Fixed releases can be found at:

Thanks to Sebastian Auwärter and Joerg-Thomas Vogt for discovering and
reporting this issue.

Release Name:

Security Advisory 2017-03: Security Update for all OTRS Versions


  • pub 2048R/9C227C6B 2011-03-21 [expires at: 2017-08-20]
  • uid OTRS Security Team <>
  • GPG Fingerprint E330 4608 DA6E 34B7 1551 C244 7F9E 44E9 9C22 7C6B