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CVE-2021-27927

CVE-2021-27927

This page contains facts from public vulnerability sources. Check the original advisory before updating.

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 8.8 · High · EPSS 2.2% · Fix available

Published
Updated

Stack: system · applications

Affected products and versions

  • n/a

    Versions
    • n/a: Affected

    No fix published

  • zabbix Debian:12

    Affected ranges
    • ECOSYSTEM: < 1:5.0.8+dfsg-1

    Update to 1:5.0.8+dfsg-1

  • zabbix Debian:13

    Affected ranges
    • ECOSYSTEM: < 1:5.0.8+dfsg-1

    Update to 1:5.0.8+dfsg-1

  • zabbix Debian:14

    Affected ranges
    • ECOSYSTEM: < 1:5.0.8+dfsg-1

    Update to 1:5.0.8+dfsg-1

  • zabbix Ubuntu:Pro:20.04:LTS

    Versions
    • 1:4.0.4+dfsg-1build2
    • 1:4.0.4+dfsg-1build3
    • 1:4.0.11+dfsg-1
    • 1:4.0.14+dfsg-1
    • 1:4.0.15+dfsg-1
    • 1:4.0.16+dfsg-1
    • 1:4.0.16+dfsg-1build1
    • 1:4.0.17+dfsg-1
    • 1:4.0.17+dfsg-1ubuntu0.1~esm1
    • 1:4.0.17+dfsg-1ubuntu0.1~esm2
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

Original sources

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