Vulnerabilities > CVE-2020-26029 - Incorrect Authorization vulnerability in Zammad

CVSS 4.0 - MEDIUM

Attack vector

NETWORK

Attack complexity

LOW

Privileges required

SINGLE

Confidentiality impact

PARTIAL

Integrity impact

NONE

Availability impact

NONE

network

low complexity

zammad

CWE-863

NVD

Published: 2020-12-28

Updated: 2020-12-29

Summary

An issue was discovered in Zammad before 3.4.1. There are wrong authorization checks for impersonation requests via X-On-Behalf-Of. The authorization checks are performed for the actual user and not the one given in the X-On-Behalf-Of header.

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 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 Zammad Zammad 3.3.1	50

Common Weakness Enumeration (CWE)

CWE-863 - Incorrect Authorization

References

https://zammad.com/news/security-advisory-zaa-2020-20