fkie_cve-2018-7544
Vulnerability from fkie_nvd
Published
2018-03-16 15:29
Modified
2024-11-21 04:12
Severity ?
Summary
A cross-protocol scripting issue was discovered in the management interface in OpenVPN through 2.4.5. When this interface is enabled over TCP without a password, and when no other clients are connected to this interface, attackers can execute arbitrary management commands, obtain sensitive information, or cause a denial of service (SIGTERM) by triggering XMLHttpRequest actions in a web browser. This is demonstrated by a multipart/form-data POST to http://localhost:23000 with a "signal SIGTERM" command in a TEXTAREA element. NOTE: The vendor disputes that this is a vulnerability. They state that this is the result of improper configuration of the OpenVPN instance rather than an intrinsic vulnerability, and now more explicitly warn against such configurations in both the management-interface documentation, and with a runtime warning
References
| ▼ | URL | Tags | |
|---|---|---|---|
| cve@mitre.org | http://blog.0xlabs.com/2018/03/openvpn-remote-information-disclosure.html | Exploit, Third Party Advisory | |
| af854a3a-2127-422b-91ae-364da2661108 | http://blog.0xlabs.com/2018/03/openvpn-remote-information-disclosure.html | Exploit, Third Party Advisory |
{
"configurations": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:a:openvpn:openvpn:*:*:*:*:*:*:*:*",
"matchCriteriaId": "DE001042-A74F-441C-8ED2-B4CF71299080",
"versionEndIncluding": "2.4.5",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"cveTags": [
{
"sourceIdentifier": "cve@mitre.org",
"tags": [
"disputed"
]
}
],
"descriptions": [
{
"lang": "en",
"value": "A cross-protocol scripting issue was discovered in the management interface in OpenVPN through 2.4.5. When this interface is enabled over TCP without a password, and when no other clients are connected to this interface, attackers can execute arbitrary management commands, obtain sensitive information, or cause a denial of service (SIGTERM) by triggering XMLHttpRequest actions in a web browser. This is demonstrated by a multipart/form-data POST to http://localhost:23000 with a \"signal SIGTERM\" command in a TEXTAREA element. NOTE: The vendor disputes that this is a vulnerability. They state that this is the result of improper configuration of the OpenVPN instance rather than an intrinsic vulnerability, and now more explicitly warn against such configurations in both the management-interface documentation, and with a runtime warning"
},
{
"lang": "es",
"value": "** EN DISPUTA ** Se ha descubierto un problema en la interfaz de gesti\u00f3n en OpenVPN hasta la versi\u00f3n 2.4.5. Cuando esta interfaz est\u00e1 habilitada en TCP sin contrase\u00f1a y cuando no hay m\u00e1s clientes conectados a esta interfaz, los atacantes pueden ejecutar comandos arbitrarios de gesti\u00f3n, obtener informaci\u00f3n sensible o provocar una denegaci\u00f3n de servicio (SIGTERM) al desencadenar acciones XMLHttpRequest en un navegador web. Esto se demuestra mediante un POST multipart/form-data en http://localhost:23000 con un comando \"signal SIGTERM\" en un elemento TEXTAREA. NOTA: El fabricante discute que esto sea una vulnerabilidad. Afirman que este es el resultado de una configuraci\u00f3n incorrecta de la instancia OpenVPN en lugar de una vulnerabilidad intr\u00ednseca; ahora advierten de forma a\u00fan m\u00e1s expl\u00edcita contra tal configuraci\u00f3n, tanto en la documentaci\u00f3n de la interfaz de gesti\u00f3n como en un mensaje runtime."
}
],
"id": "CVE-2018-7544",
"lastModified": "2024-11-21T04:12:20.183",
"metrics": {
"cvssMetricV2": [
{
"acInsufInfo": false,
"baseSeverity": "MEDIUM",
"cvssData": {
"accessComplexity": "LOW",
"accessVector": "NETWORK",
"authentication": "NONE",
"availabilityImpact": "PARTIAL",
"baseScore": 6.4,
"confidentialityImpact": "PARTIAL",
"integrityImpact": "NONE",
"vectorString": "AV:N/AC:L/Au:N/C:P/I:N/A:P",
"version": "2.0"
},
"exploitabilityScore": 10.0,
"impactScore": 4.9,
"obtainAllPrivilege": false,
"obtainOtherPrivilege": false,
"obtainUserPrivilege": false,
"source": "nvd@nist.gov",
"type": "Primary",
"userInteractionRequired": false
}
],
"cvssMetricV30": [
{
"cvssData": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 9.1,
"baseSeverity": "CRITICAL",
"confidentialityImpact": "HIGH",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H",
"version": "3.0"
},
"exploitabilityScore": 3.9,
"impactScore": 5.2,
"source": "nvd@nist.gov",
"type": "Primary"
}
]
},
"published": "2018-03-16T15:29:00.247",
"references": [
{
"source": "cve@mitre.org",
"tags": [
"Exploit",
"Third Party Advisory"
],
"url": "http://blog.0xlabs.com/2018/03/openvpn-remote-information-disclosure.html"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Exploit",
"Third Party Advisory"
],
"url": "http://blog.0xlabs.com/2018/03/openvpn-remote-information-disclosure.html"
}
],
"sourceIdentifier": "cve@mitre.org",
"vulnStatus": "Modified",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-134"
}
],
"source": "nvd@nist.gov",
"type": "Primary"
}
]
}
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
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- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.