Vulnerabilities > CVE-2020-10101 - Improper Handling of Exceptional Conditions vulnerability in Zammad

CVSS 7.5 - HIGH

Attack vector

NETWORK

Attack complexity

LOW

Privileges required

NONE

Confidentiality impact

NONE

Integrity impact

NONE

Availability impact

HIGH

network

low complexity

zammad

CWE-755

NVD

Published: 2020-03-05

Updated: 2021-07-21

Summary

An issue was discovered in Zammad 3.0 through 3.2. The WebSocket server crashes when messages in non-JSON format are sent by an attacker. The message format is not properly checked and parsing errors not handled. This leads to a crash of the service process.

Vulnerable Configurations

Part	Description	Count
Application	Zammad Zammad Zammad 1.0.0 Zammad Zammad 1.0.1 Zammad Zammad 1.0.2 Zammad Zammad 1.0.3 Zammad Zammad 1.0.4 Zammad Zammad 1.1.0 Zammad Zammad 1.1.1 Zammad Zammad 1.1.2 Zammad Zammad 1.1.3 Zammad Zammad 1.1.4 Zammad Zammad 1.2.0 Zammad Zammad 1.2.1 Zammad Zammad 1.2.2 Zammad Zammad 1.2.3 Zammad Zammad 1.3.0 Zammad Zammad 1.3.1 Zammad Zammad 1.3.2 Zammad Zammad 1.4.0 Zammad Zammad 1.4.1 Zammad Zammad 1.5.0 Zammad Zammad 1.5.1 Zammad Zammad 1.6.0 Zammad Zammad 1.6.1 Zammad Zammad 2.0.0 Zammad Zammad 2.0.1 Zammad Zammad 2.1.0 Zammad Zammad 2.1.1 Zammad Zammad 2.1.2 Zammad Zammad 2.2.0 Zammad Zammad 2.2.1 Zammad Zammad 2.2.2 Zammad Zammad 2.3.0 Zammad Zammad 2.3.1 Zammad Zammad 2.4.0 Zammad Zammad 2.4.1 Zammad Zammad 2.5.0 Zammad Zammad 2.5.1 Zammad Zammad 2.6.0 Zammad Zammad 2.6.1 Zammad Zammad 2.7.0 Zammad Zammad 2.7.1 Zammad Zammad 2.7.2 Zammad Zammad 2.8.0 Zammad Zammad 2.8.1 Zammad Zammad 2.9.0 Zammad Zammad 2.10.0 Zammad Zammad 3.0.0 Zammad Zammad 3.0.1 Zammad Zammad 3.1.0 Zammad Zammad 3.1.1 Zammad Zammad 3.2.0	51

Common Weakness Enumeration (CWE)

CWE-755 - Improper Handling of Exceptional Conditions

References

https://zammad.com/news/security-advisory-zaa-2020-06