CVE-2019-25671

HIGH

VA MAX 8.3.4 Remote Code Execution via changeip.php

Title source: cna
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-2019-25671. PoCs published by Cody Sixteen.

AI-analyzed exploit summary This Python script exploits a post-authentication remote code execution vulnerability in VA MAX 8.3.4 by injecting a malicious payload into the 'mtu_eth0' parameter of the changeip.php endpoint. The payload decodes a base64-encoded reverse shell command, granting the attacker a shell as the 'apache' user, which can then escalate to root via sudo misconfiguration.

Description

VA MAX 8.3.4 contains a remote code execution vulnerability that allows authenticated attackers to execute arbitrary commands by injecting shell metacharacters into the mtu_eth0 parameter. Attackers can send POST requests to the changeip.php endpoint with malicious payload in the mtu_eth0 field to execute commands as the apache user.

Exploits (1)

exploitdb WORKING POC
by Cody Sixteen · pythonwebappsphp
https://www.exploit-db.com/exploits/46348

This Python script exploits a post-authentication remote code execution vulnerability in VA MAX 8.3.4 by injecting a malicious payload into the 'mtu_eth0' parameter of the changeip.php endpoint. The payload decodes a base64-encoded reverse shell command, granting the attacker a shell as the 'apache' user, which can then escalate to root via sudo misconfiguration.

Classification
Working Poc 95%
Attack Type
Rce
Complexity
Moderate
Reliability
Reliable
Target: VA MAX 8.3.4
Auth required
Prerequisites: Valid credentials for the 'loadbalancer' user · Network access to the target on port 9080
devstral-2 · analyzed Apr 07, 2026 Full analysis →

References (2)

Core 2
Core References
Exploit exploit
ExploitDB-46348
https://www.exploit-db.com/exploits/46348
Third Party Advisory third-party-advisory
VulnCheck Advisory: VA MAX 8.3.4 Remote Code Execution via changeip.php
https://www.vulncheck.com/advisories/va-max-remote-code-execution-via-changeip-php

Scores

CVSS v3 8.8
EPSS 0.0066
EPSS Percentile 46.7%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CISA SSVC

Vulnrichment
Exploitation poc
Automatable no
Technical Impact total

Details

CWE
CWE-22
Status published
Products (1)
VA MAX/VA MAX 8.3.4
Published Apr 05, 2026
Tracked Since Apr 06, 2026