CVE-2018-10561
An issue was discovered on Dasan GPON home routers. It is possible to bypass authentication simply by appending "?images" to any URL of the device that requires authentication, as demonstrated by the /menu.html?images/ or /GponForm/diag_FORM?images/ URI. One can then manage the device.
CVSS
- Versión: 3.1
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- Puntuación base: 9.8
Probabilidad de explotación (EPSS)
- Probabilidad de explotación en los próximos 30 días: 93%
- Percentil entre todas las CVEs puntuadas: 100
- Fecha de la puntuación: 3/10/2026
EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).
CISA KEV — explotada activamente
- Añadida al catálogo: 31/3/2022
- Plazo de remediación: 21/4/2022
- Uso conocido en ransomware: Unknown
💥 Exploits públicos
Hay código de explotación o plantillas de detección públicos. No es lo mismo que explotación activa confirmada (KEV), pero aumenta el riesgo: parchee con prioridad.
- Publicado en Exploit-DB · GPON Routers - Authentication Bypass / Command Injection (3/5/2018)
🎯 Técnicas ATT&CK
Cómo se explota esta vulnerabilidad y qué consigue el atacante, en el lenguaje de MITRE ATT&CK.
- Explotación
T1190Exploit Public-Facing Applicationinitial access95 % - Impacto principal
T1078Valid Accountsstealth · persistence · privilege escalation · initial access90 % - Impacto secundario
T1059Command and Scripting Interpreterexecution75 %
Bypass de autenticación en router GPON (AV:N, PR:N) mediante manipulación de URL permite acceso no autorizado y control del dispositivo. CWE-287 (autenticación rota) + vector crítico confirman T1190. Impactos: obtención de acceso (T1078) y ejecución de comandos administrativos (T1059).
Inferido por nuestro agente de análisis a partir de la descripción oficial, el vector CVSS y la CWE, y comprobado por un supervisor. Puede contener errores.
🛡️ Mitigaciones ATT&CK que cubren estas técnicas
Tecnologías afectadas (1)
CWE
- CWE-287
- CWE-287
Referencias
- http://www.securityfocus.com/bid/107053
- https://www.exploit-db.com/exploits/44576/
- https://www.vpnmentor.com/blog/critical-vulnerability-gpon-router/
- http://www.securityfocus.com/bid/107053
- https://www.exploit-db.com/exploits/44576/
- https://www.vpnmentor.com/blog/critical-vulnerability-gpon-router/
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2018-10561
JSON original (NVD)
Mostrar
{
"id": "CVE-2018-10561",
"cveTags": [],
"metrics": {
"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
"id": "CVE-2018-10561",
"role": "CISA Coordinator",
"options": [
{
"exploitation": "active"
},
{
"automatable": "yes"
},
{
"technicalImpact": "total"
}
],
"version": "2.0.3",
"timestamp": "2025-02-03T15:41:24.667227Z"
}
}
],
"cvssMetricV2": [
{
"type": "Primary",
"source": "nvd@nist.gov",
"cvssData": {
"version": "2.0",
"baseScore": 7.5,
"accessVector": "NETWORK",
"vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P",
"authentication": "NONE",
"integrityImpact": "PARTIAL",
"accessComplexity": "LOW",
"availabilityImpact": "PARTIAL",
"confidentialityImpact": "PARTIAL"
},
"acInsufInfo": true,
"impactScore": 6.4,
"baseSeverity": "HIGH",
"obtainAllPrivilege": false,
"exploitabilityScore": 10,
"obtainUserPrivilege": false,
"obtainOtherPrivilege": false,
"userInteractionRequired": false
}
],
"cvssMetricV31": [
{
"type": "Primary",
"source": "nvd@nist.gov",
"cvssData": {
"scope": "UNCHANGED",
"version": "3.1",
"baseScore": 9.8,
"attackVector": "NETWORK",
"baseSeverity": "CRITICAL",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"integrityImpact": "HIGH",
"userInteraction": "NONE",
"attackComplexity": "LOW",
"availabilityImpact": "HIGH",
"privilegesRequired": "NONE",
"confidentialityImpact": "HIGH"
},
"impactScore": 5.9,
"exploitabilityScore": 3.9
},
{
"type": "Secondary",
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"cvssData": {
"scope": "UNCHANGED",
"version": "3.1",
"baseScore": 9.8,
"attackVector": "NETWORK",
"baseSeverity": "CRITICAL",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"integrityImpact": "HIGH",
"userInteraction": "NONE",
"attackComplexity": "LOW",
"availabilityImpact": "HIGH",
"privilegesRequired": "NONE",
"confidentialityImpact": "HIGH"
},
"impactScore": 5.9,
"exploitabilityScore": 3.9
}
]
},
"affected": [
{
"source": "cve@mitre.org",
"affectedData": [
{
"vendor": "n/a",
"product": "n/a",
"versions": [
{
"status": "affected",
"version": "n/a"
}
]
}
]
}
],
"published": "2018-05-04T03:29:00.227",
"references": [
{
"url": "http://www.securityfocus.com/bid/107053",
"tags": [
"Broken Link",
"Third Party Advisory",
"VDB Entry"
],
"source": "cve@mitre.org"
},
{
"url": "https://www.exploit-db.com/exploits/44576/",
"tags": [
"Exploit",
"Third Party Advisory",
"VDB Entry"
],
"source": "cve@mitre.org"
},
{
"url": "https://www.vpnmentor.com/blog/critical-vulnerability-gpon-router/",
"tags": [
"Exploit",
"Technical Description",
"Third Party Advisory"
],
"source": "cve@mitre.org"
},
{
"url": "http://www.securityfocus.com/bid/107053",
"tags": [
"Broken Link",
"Third Party Advisory",
"VDB Entry"
],
"source": "af854a3a-2127-422b-91ae-364da2661108"
},
{
"url": "https://www.exploit-db.com/exploits/44576/",
"tags": [
"Exploit",
"Third Party Advisory",
"VDB Entry"
],
"source": "af854a3a-2127-422b-91ae-364da2661108"
},
{
"url": "https://www.vpnmentor.com/blog/critical-vulnerability-gpon-router/",
"tags": [
"Exploit",
"Technical Description",
"Third Party Advisory"
],
"source": "af854a3a-2127-422b-91ae-364da2661108"
},
{
"url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2018-10561",
"tags": [
"US Government Resource"
],
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0"
}
],
"vulnStatus": "Analyzed",
"weaknesses": [
{
"type": "Primary",
"source": "nvd@nist.gov",
"description": [
{
"lang": "en",
"value": "CWE-287"
}
]
},
{
"type": "Secondary",
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"description": [
{
"lang": "en",
"value": "CWE-287"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "An issue was discovered on Dasan GPON home routers. It is possible to bypass authentication simply by appending \"?images\" to any URL of the device that requires authentication, as demonstrated by the /menu.html?images/ or /GponForm/diag_FORM?images/ URI. One can then manage the device."
},
{
"lang": "es",
"value": "Se ha descubierto un problema en los routers domésticos Dasan GPON. Es posible omitir la autenticación anexionando \"?images\" a cualquier URL del dispositivo que requiera autenticación, tal y como queda demostrado con los URI /menu.html?images/ o /GponForm/diag_FORM?images/. Así, se puede gestionar el dispositivo."
}
],
"lastModified": "2026-06-17T01:34:10.200",
"cisaActionDue": "2022-04-21",
"cisaExploitAdd": "2022-03-31",
"configurations": [
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:o:dasannetworks:gpon_router_firmware:-:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "8153A5BC-B257-4774-8106-E77FA2239A99"
}
],
"operator": "OR"
},
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:h:dasannetworks:gpon_router:-:*:*:*:*:*:*:*",
"vulnerable": false,
"matchCriteriaId": "E795B673-4FC0-4A2B-821E-63F87B90D6C6"
}
],
"operator": "OR"
}
],
"operator": "AND"
}
],
"sourceIdentifier": "cve@mitre.org",
"cisaRequiredAction": "The impacted product is end-of-life and should be disconnected if still in use.",
"cisaVulnerabilityName": "Dasan GPON Routers Authentication Bypass Vulnerability"
}