What is CVE-2023-2534?

CVE-2023-2534 is a high-severity vulnerability in Otrs, classified under Improper Authorization. CVSS score: 7.6/10. Published 2023-05-08.

How severe is CVE-2023-2534?

High severity. CVSS v3 base score is 7.6 out of 10.

Auth bypass in Otrs

CVE-2023-2534

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.

EPSS: 0.005 (41.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.6 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:L.

Affected products

Otrs
Otrs Ag — versions 8.0.x

Weakness classification (CWE)

References

security@otrs.com (Vendor Advisory)

Frequently asked questions

What is CVE-2023-2534?: CVE-2023-2534 is a high-severity vulnerability in Otrs, classified under Improper Authorization. CVSS score: 7.6/10. Published 2023-05-08.
How severe is CVE-2023-2534?: High severity. CVSS v3 base score is 7.6 out of 10.