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Zabbix Agent 6.2.7 Insecure Permissions / Privilege Escalation ≈ Mobile Hacker For Hire

Table of Contents

# Exploit Title: Zabbix agents – Insecure Permissions on non-default installation directory location
# Discovery by: mmg
# Discovery Date: 2023-01-23
# Vendor Homepage:
# Software Link Zabbix agent :
# Software Link Zabbix agent 2 :
# Tested Version: Zabbix agent and Zabbix agent 2 (v6.2.6, v6.2.7 and older versions)
# Vulnerability Type: Local Privilege Escalation
# Tested on OS: Windows 10 Pro Version 22H2 (OS Build 19045.2486) x64 version
# CVSSv3 Vectors :

# Step to discover:

Go to Start and type powershell.
Enter the following command and press Enter:
Get-WmiObject win32_service | ?{ $_.Name -like ‘*zabbix*’ -and $_.Pathname -notlike “*C:\Program Files*”}| select Name,PathName

# Example of a vulnerable installation

Name PathName
—- ——–
Zabbix Agent “C:\Software\Zabbix Agent\zabbix_agentd.exe” –config “C:\Software\Zabbix Agent\zabbix_agentd.conf”
Zabbix Agent 2 “D:\software\Zabbix Agent 2\zabbix_agent2.exe” -c “D:\software\Zabbix Agent 2\zabbix_agent2.conf” -f=false

# Exploit:

A vulnerability was found in Zabbix Agents on non-default installation directory location.
The Zabbix Agent executables have incorrect permissions, allowing a local unprivileged user to replace it
with a malicious file that will be executed with “LocalSystem” privileges which will result in complete
compromise of Confidentiality, Integrity and Availability.

# Timeline
Jan 23, 2023 – Reported to Zabbix
Feb 1, 2023 – Zabbix does not consider this a vulnerability
Feb 6, 2023 – Requested official approval to disclose it
Feb 8, 2023 – Zabbix agrees with public disclosure
Feb 13, 2023 – Public disclosure

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