CVE-2023-2534

Information disclouse and DoS via websocket push events

Description

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.

Remediation

Solution:

  • Update to OTRS 8.0.32

Categories

7.6
CVSS
Severity: High
CVSS 3.1 •
EPSS 0.10%
Vendor Advisory otrs.com
Affected: OTRS AG OTRS
Published at:
Updated at:

References

Frequently Asked Questions

What is the severity of CVE-2023-2534?
CVE-2023-2534 has been scored as a high severity vulnerability.
How to fix CVE-2023-2534?
To fix CVE-2023-2534: Update to OTRS 8.0.32
Is CVE-2023-2534 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2023-2534 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2023-2534?
CVE-2023-2534 affects OTRS AG OTRS.
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