CVE-2023-2534 HIGH

CVE-2023-2534: Information disclouse and DoS via websocket push events

Vendor Otrs Ag
Product OTRS
Weakness CWE-285
Published May 8, 2023
Last update January 29, 2025

CVSS base score

7.6/10
Attack vector Network
Attack complexity Low
Privileges required Low
User interaction None
Confidentiality Low
Integrity High

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:L

What the vulnerability does

01Description

Improper Authorization vulnerability in OTRS AG OTRS 8 (Websocket API backend) allows any as Agent authenticated attacker to track user behaviour and to gain live insight into overall system usage. User IDs can easily be correlated with real names e. g. via ticket histories by any user. (Fuzzing for garnering other adjacent user/sensitive data). Subscribing to all possible push events could also lead to performance implications on the server side, depending on the size of the installation and the number of active users. (Flooding)This issue affects OTRS: from 8.0.X before 8.0.32.

Key dates

02Disclosure timeline

May 8, 2023 CVE published
January 29, 2025 Record updated