IPFire up to 2.18 CGI Interface proxy.cgi os command injection

Summaryinfo

A vulnerability categorized as critical has been discovered in IPFire up to 2.18. This issue affects some unknown processing of the file proxy.cgi of the component CGI Interface. Executing a manipulation can lead to os command injection. This vulnerability appears as CVE-2025-34116. The attack may be performed from remote. In addition, an exploit is available. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability has been found in IPFire up to 2.18 and classified as critical. This vulnerability affects an unknown functionality of the file proxy.cgi of the component CGI Interface. The manipulation with an unknown input leads to a os command injection vulnerability. The CWE definition for the vulnerability is CWE-78. The product constructs all or part of an OS command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended OS command when it is sent to a downstream component. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

A remote command execution vulnerability exists in IPFire before version 2.19 Core Update 101 via the 'proxy.cgi' CGI interface. An authenticated attacker can inject arbitrary shell commands through crafted values in the NCSA user creation form fields, leading to command execution with web server privileges.

The weakness was presented by Yann Cam. The advisory is shared for download at ipfire.org. This vulnerability was named CVE-2025-34116 since 04/15/2025. The exploitation appears to be easy. The attack can be initiated remotely. Technical details and also a public exploit are known. The MITRE ATT&CK project declares the attack technique as T1202.

It is possible to download the exploit at exploit-db.com. It is declared as proof-of-concept.

Upgrading to version 2.19 eliminates this vulnerability.

The vulnerability is also documented in the databases at Exploit-DB (39765) and EUVD (EUVD-2025-21433). VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Name

• IPFire

Version

• 2.0
• 2.1
• 2.2
• 2.3
• 2.4
• 2.5
• 2.6
• 2.7
• 2.8
• 2.9
• 2.10
• 2.11
• 2.12
• 2.13
• 2.14
• 2.15
• 2.16
• 2.17
• 2.18

CPE 2.3info

• 🔒
• 🔒
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CPE 2.2info

• 🔒
• 🔒
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Entryinfo

VulDB is the best source for vulnerability data and more expert information about this specific topic.

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