What is the vulnerability ID?

The vulnerability ID is CVE-2023-2534.

What is the severity of CVE-2023-2534?

The severity of CVE-2023-2534 is rated as high (8.1).

What is the affected software?

The affected software is OTRS AG OTRS 8 (Websocket API backend) version 8.0.0 to 8.0.32.

How can an attacker exploit this vulnerability?

An attacker with Agent access can track user behavior, gain live insight into system usage, and correlate user IDs to real names.

Vulnerability/
CVE-2023-2534

high

8.1

CWE

863 285

8/5/2023

2/8/2024

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

Q: What is the title of the vulnerability?

The title of the vulnerability is 'Improper Authorization vulnerability in OTRS AG OTRS 8 (Websocket API backend) allows any as Agent a…'

First published: Mon May 08 2023(Updated: )

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.

Credit: security@otrs.com

Affected Software	Affected Version	How to fix
Otrs Otrs	>=8.0.0<8.0.32

Remedy

Update to OTRS 8.0.32

Never miss a vulnerability like this again

Reference Links

https://otrs.com/release-notes/otrs-security-advisory-2023-03/

Frequently Asked Questions

What is the vulnerability ID?
The vulnerability ID is CVE-2023-2534.
What is the title of the vulnerability?
The title of the vulnerability is 'Improper Authorization vulnerability in OTRS AG OTRS 8 (Websocket API backend) allows any as Agent a…'
What is the severity of CVE-2023-2534?
The severity of CVE-2023-2534 is rated as high (8.1).
What is the affected software?
The affected software is OTRS AG OTRS 8 (Websocket API backend) version 8.0.0 to 8.0.32.
How can an attacker exploit this vulnerability?
An attacker with Agent access can track user behavior, gain live insight into system usage, and correlate user IDs to real names.

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