IPFire up to 2.21 VPN Configuration ovpnmain.cgi cross site scripting

Summaryinfo

A vulnerability has been found in IPFire up to 2.21 and classified as problematic. This issue affects some unknown processing of the file ovpnmain.cgi of the component VPN Configuration Handler. Performing a manipulation of the argument VPN_IP/DMTU/ccdname/ccdsubnet/DOVPN_SUBNET/DHCP_DOMAIN/DHCP_DNS/DHCP_WINS/ROUTES_PUSH/FRAGMENT/KEEPALIVE_1/KEEPALIVE_2 results in cross site scripting. This vulnerability was named CVE-2019-25398. The attack may be initiated remotely. In addition, an exploit is available.

Detailsinfo

A vulnerability was found in IPFire up to 2.21. It has been classified as problematic. This affects an unknown part of the file ovpnmain.cgi of the component VPN Configuration Handler. The manipulation of the argument VPN_IP/DMTU/ccdname/ccdsubnet/DOVPN_SUBNET/DHCP_DOMAIN/DHCP_DNS/DHCP_WINS/ROUTES_PUSH/FRAGMENT/KEEPALIVE_1/KEEPALIVE_2 with an unknown input leads to a cross site scripting vulnerability. CWE is classifying the issue as CWE-79. The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users. This is going to have an impact on integrity. The summary by CVE is:

IPFire 2.21 Core Update 127 contains multiple cross-site scripting vulnerabilities in the ovpnmain.cgi script that allow attackers to inject malicious scripts through VPN configuration parameters. Attackers can submit POST requests with script payloads in parameters like VPN_IP, DMTU, ccdname, ccdsubnet, DOVPN_SUBNET, DHCP_DOMAIN, DHCP_DNS, DHCP_WINS, ROUTES_PUSH, FRAGMENT, KEEPALIVE_1, and KEEPALIVE_2 to execute arbitrary JavaScript in administrator browsers.

The weakness was presented by Ozer Goker as 46344. The advisory is shared at exploit-db.com. This vulnerability is uniquely identified as CVE-2019-25398 since 02/18/2026. The exploitability is told to be easy. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. It demands that the victim is doing some kind of user interaction. Technical details and a public exploit are known. MITRE ATT&CK project uses the attack technique T1059.007 for this issue.

The exploit is shared for download at exploit-db.com. It is declared as proof-of-concept.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the vulnerability database at Exploit-DB (46344). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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
• 2.19
• 2.20
• 2.21

CPE 2.3info

• 🔒
• 🔒
• 🔒

CPE 2.2info

• 🔒
• 🔒
• 🔒

CVSSv4info

CVSSv3info

CVSSv2info

Exploitinginfo

Threat Intelligenceinfo

Countermeasuresinfo

Timelineinfo

Sourcesinfo

Entryinfo

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Discussion