CVE-2021-27927
High
Description
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.
SeverityHigh
CVSS8.8
Exploit probability—
Product
Zabbix
PublishedMar 3, 2021
First seenMar 3, 2021
How to fix
Sources list no fixed version or patch link for this vulnerability.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| zabbix zabbix | 4.0.0 ≤ v ≤ 4.0.27, 5.0.0 ≤ v ≤ 5.0.9, 5.2.0 ≤ v ≤ 5.2.3 | — |
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