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

7.6HIGH

Key Information:

Vendor

Otrs Ag

Status
Otrs
Vendor
CVE Published:
8 May 2023

What is CVE-2023-2534?

An improper authorization vulnerability in OTRS AG's OTRS 8 Websocket API allows authenticated agents to monitor user behavior and gain live insights into system usage. This security issue could enable an attacker to correlate user IDs with real names through accessible ticket histories. Additionally, by subscribing to all available push events, a malicious user could overwhelm the server, leading to performance degradation, especially in environments with numerous users or large installations. This vulnerability affects OTRS versions prior to 8.0.32.

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Affected Version(s)

OTRS 8.0.x

References

https://otrs.com/release-notes/otrs-security-advisory-202...

CVSS V3.1

Score:
7.6
Severity:
HIGH
Confidentiality:
Low
Integrity:
High
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Special thanks to Maximilian Gutwein for reporting these vulnerability.
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