Cross-site Request Forgery (CSRF) Affecting zabbix package, versions <1:5.0.8+dfsg-1


Severity

Recommended
0.0
high
0
10

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Threat Intelligence

EPSS
0.07% (33rd percentile)

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  • Snyk IDSNYK-DEBIAN11-ZABBIX-1082817
  • published4 Mar 2021
  • disclosed3 Mar 2021

Introduced: 3 Mar 2021

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

How to fix?

Upgrade Debian:11 zabbix to version 1:5.0.8+dfsg-1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream zabbix package and not the zabbix package as distributed by Debian. See How to fix? for Debian:11 relevant fixed versions and status.

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.

CVSS Scores

version 3.1