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  1. ZABBIX BUGS AND ISSUES
  2. ZBX-18224

Zabbix Windows Agent 5.0.2 x64 openssl privilege escalation

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    • Icon: Defect (Security) Defect (Security)
    • Resolution: Fixed
    • Icon: Trivial Trivial
    • 5.4 (plan)
    • None
    • None
    • Sprint 72 (Jan 2021), Sprint 73 (Feb 2021)
    • 0.5

      Zabbix Windows Agent compiled with openssl try to reach ssl configuration file on folder c:\openssl-64bit

      As this folder is not existing, a local user without privilege is able to create it, and craft a malicious cnf file in order to load malicious dll when zabbix start.

       

      As Zabbix service is running with system account, the malicious process has system privilege.

      File attached is a PoC of this problem.

            martins-v Martins Valkovskis
            xdanes09 Xavier DANEST
            Team D
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              Created:
              Updated:
              Resolved: