Cross-site Request Forgery (CSRF) Affecting zabbix/zabbix package, versions [,4.0.28)[5.0.0,5.0.8)[5.1.0,5.2.4)


Severity

Recommended
0.0
high
0
10

CVSS assessment made by Snyk's Security Team. Learn more

Threat Intelligence

EPSS
0.07% (34th percentile)

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  • Snyk IDSNYK-UNMANAGED-ZABBIXZABBIX-2364949
  • published26 Jan 2022
  • disclosed3 Mar 2021
  • creditUnknown

Introduced: 3 Mar 2021

CVE-2021-27927  (opens in a new tab)
CWE-352  (opens in a new tab)

How to fix?

Upgrade zabbix/zabbix to version 4.0.28, 5.0.8, 5.2.4 or higher.

Overview

Affected versions of this package are vulnerable to Cross-site Request Forgery (CSRF). In Zabbix from 4.0.x before 4.0.28rc1, 5.0.0alpha1 before 5.0.10rc1, 5.2.x before 5.2.6rc1, and 5.4.0alpha1 before 5.4.0beta2, the CControllerAuthenticationUpdate controller lacks a CSRF protection mechanism. The code inside this controller calls diableSIDValidation inside the init() method. An attacker doesn't have to know Zabbix user login credentials, but has to know the correct Zabbix URL and contact information of an existing user with sufficient privileges.

References

CVSS Scores

version 3.1