HighPublic exploit

Authenticated Command Injection in IPFire proxy.cgi

IdentifiersCVE-2025-34116CWE-78· Improper Neutralization of Special…

CVE-2025-34116 is a remote command execution vulnerability in IPFire before version 2.19 Core Update 101. The flaw exists in the proxy.cgi CGI interface, specifically via the NCSA user creation form fields. An authenticated attacker can supply crafted input that is incorporated into shell command execution without proper neutralization of special elements, allowing arbitrary shell command injection. Successful exploitation results in command execution in the context of the web server process.

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ANALYST BRIEF

Impact, mitigation & remediation

What it means. What to do now. Patch path, mitigations, and the assume-compromise checklist.

Impact

What an attacker gets, and what they’ve been doing with it.

Successful exploitation allows an authenticated attacker to execute arbitrary shell commands on the target IPFire system with the privileges of the web server. This can enable modification of system configuration, access to data available to the web application, installation of additional tooling or persistence mechanisms accessible from that privilege level, and potential follow-on local privilege escalation depending on host configuration.

Mitigation

If you can’t patch tonight, do this now.

If immediate patching is not possible, restrict access to the IPFire administrative interface to trusted management networks only, minimize the number of accounts permitted to access the affected functionality, and disable or avoid use of the vulnerable proxy.cgi NCSA user creation feature if operationally feasible. Monitor web interface activity and logs for suspicious form submissions or unexpected command execution behavior originating from authenticated sessions.

Remediation

Patch, then assume compromise.

Upgrade IPFire to version 2.19 Core Update 101 or later, where the vulnerable behavior is addressed. If an official vendor fix is available beyond that release, apply the latest supported update. Review the implementation of proxy.cgi and the NCSA user creation workflow to ensure shell metacharacters are not passed to command interpreters and that user input is safely handled without shell invocation.

PUBLIC EXPLOITS

Exploits

1 valid exploit after Mallory filtered fakes, detection scripts, and README-only repos.

VALID 1 / 1 TOTALView more in app

ipfire_proxy_exec.rbMaturityWeaponizedFrameworkmetasploitVerified exploit

This repository contains a single Metasploit module (modules/exploits/linux/http/ipfire_proxy_exec.rb) that exploits a remote command execution (RCE) vulnerability in IPFire, an open source Linux firewall distribution. The vulnerability exists in the proxy.cgi page for IPFire versions prior to 2.19 Core Update 101 (CVE-2025-34116). The exploit works by sending a specially crafted POST request to /cgi-bin/proxy.cgi, injecting arbitrary commands via the NCSA_PASS parameter. The module requires valid credentials (default: admin) and targets the web interface, typically running on port 444 with SSL enabled. The exploit is operational, allowing customizable command execution on the target system. The repository is structured as a standard Metasploit module, with all logic contained in a single Ruby file.

Disclosed May 4, 2016rubynetwork

EXPOSURE SURFACE

Affected products & vendors

Products and vendors Mallory has correlated with this vulnerability. Open in Mallory to drill down to specific CPE configurations and version ranges.

VendorProductType

IpfireIpfireapplication

Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.

ACTIVITY FEED

Recent activity

2 sources tracked across advisories and community write-ups. News coverage will land here when it surfaces.

2 SOURCESView more in app

No news coverage yet. Advisories and community discussion only.

What this page doesn’t show

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Exposure mapping

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Threat actor evidence

Every observed campaign linking this CVE to a named adversary.

Associated malware

Malware families riding this exploit, with evidence and IOCs.

Detection signatures

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Vendor-by-vendor mapping

Cross-references every affected SKU, including bundled OEM variants.

Social activity2