July 12, 2019 — 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: firstname.lastname@example.org
Security Advisory Details
- ID: OSA-2019-10
- Date: 2019-07-12
- Title: Session ID Disclosure
- Severity: 3.1. low
- Product: OTRS 6.0.x, OTRSBusiness 6.0.x, OTRS 5.0.x
- Fixed in: OTRS 6.0.20, OTRSBusiness 6.0.21, OTRS 5.0.37
- FULL CVSS v3 VECTOR: CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:N/A:N/E:U/RL:O/RC:C
- References: CVE-2019-12746
This advisory covers vulnerabilities discovered in the OTRS framework.
A user logged into OTRS as an agent might unknowingly disclose their session ID by sharing the link of an embedded ticket article with third parties. This identifier can be then potentially abused in order to impersonate the agent user.
Affected by this vulnerability are all releases of OTRS 6.0.x up to and including 6.0.19, OTRSBusiness 6.0.x up to and including 6.0.20 and OTRS 5.0.x up to and including 5.0.36.
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:
Detailed information about the changes:
- OTRS 6:
- OTRS 5:
Thanks to akosiaris AT gmail DOT com for discovering and reporting this issue.