CVE-2021-41025
Estado: ModificadaCrítica (9.8)—
Multiple vulnerabilities in the authentication mechanism of confd in FortiWeb versions 6.4.1, 6.4.0, 6.3.0 through 6.3.15, 6.2.0 through 6.2.6, 6.1.0 through 6.1.2, 6.0.0 thorugh 6.0.7, including an instance of concurrent execution using shared resource with improper synchronization and one of authentication bypass by capture-replay, may allow a remote unauthenticated attacker to circumvent the authentication process and authenticate as a legitimate cluster peer.
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: 1.49%
- Percentil entre todas las CVEs puntuadas: 73
- Fecha de la puntuación: 7/10/2026
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).
Tecnologías afectadas (1)
CWE
- CWE-362
Referencias
JSON original (NVD)
Mostrar
{
"id": "CVE-2021-41025",
"cveTags": [],
"metrics": {
"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
"id": "CVE-2021-41025",
"role": "CISA Coordinator",
"options": [
{
"exploitation": "none"
},
{
"automatable": "yes"
},
{
"technicalImpact": "partial"
}
],
"version": "2.0.3",
"timestamp": "2024-10-23T14:16:00.468141Z"
}
}
],
"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": false,
"impactScore": 6.4,
"baseSeverity": "HIGH",
"obtainAllPrivilege": false,
"exploitabilityScore": 10,
"obtainUserPrivilege": false,
"obtainOtherPrivilege": false,
"userInteractionRequired": false
}
],
"cvssMetricV31": [
{
"type": "Secondary",
"source": "psirt@fortinet.com",
"cvssData": {
"scope": "UNCHANGED",
"version": "3.1",
"baseScore": 7.3,
"attackVector": "NETWORK",
"baseSeverity": "HIGH",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L",
"integrityImpact": "LOW",
"userInteraction": "NONE",
"attackComplexity": "LOW",
"availabilityImpact": "LOW",
"privilegesRequired": "NONE",
"confidentialityImpact": "LOW"
},
"impactScore": 3.4,
"exploitabilityScore": 3.9
},
{
"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
}
]
},
"affected": [
{
"source": "psirt@fortinet.com",
"affectedData": [
{
"vendor": "Fortinet",
"product": "Fortinet FortiWeb",
"versions": [
{
"status": "affected",
"version": "FortiWeb 6.4.1, 6.4.0, 6.3.0 through 6.3.15, 6.2.0 through 6.2.6, 6.1.0 through 6.1.2, 6.0.0 thorugh 6.0.7"
}
]
}
]
}
],
"published": "2021-12-08T19:15:09.957",
"references": [
{
"url": "https://fortiguard.com/advisory/FG-IR-21-130",
"tags": [
"Patch",
"Vendor Advisory"
],
"source": "psirt@fortinet.com"
},
{
"url": "https://fortiguard.com/advisory/FG-IR-21-130",
"tags": [
"Patch",
"Vendor Advisory"
],
"source": "af854a3a-2127-422b-91ae-364da2661108"
}
],
"vulnStatus": "Modified",
"weaknesses": [
{
"type": "Primary",
"source": "nvd@nist.gov",
"description": [
{
"lang": "en",
"value": "CWE-362"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "Multiple vulnerabilities in the authentication mechanism of confd in FortiWeb versions 6.4.1, 6.4.0, 6.3.0 through 6.3.15, 6.2.0 through 6.2.6, 6.1.0 through 6.1.2, 6.0.0 thorugh 6.0.7, including an instance of concurrent execution using shared resource with improper synchronization and one of authentication bypass by capture-replay, may allow a remote unauthenticated attacker to circumvent the authentication process and authenticate as a legitimate cluster peer."
},
{
"lang": "es",
"value": "Múltiples vulnerabilidades en el mecanismo de autenticación de confd en las versiones 6.4.1, 6.4.0, 6.3.0 hasta 6.3.15, 6.2.0 hasta 6.2.6, 6.1.0 hasta 6.1.2, 6.0.0 hasta 6.0. 7, incluyendo una instancia de ejecución concurrente usando un recurso compartido con una sincronización no adecuada y una de omisión de autenticación por captura-repetición, puede permitir a un atacante remoto no autenticado omitir el proceso de autenticación y autenticarse como un peer legítimo del cluster"
}
],
"lastModified": "2026-06-17T04:07:45.957",
"configurations": [
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:a:fortinet:fortiweb:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "C5931460-A0F1-4BED-ADEF-A48602EA747C",
"versionEndIncluding": "6.0.7",
"versionStartIncluding": "6.0.0"
},
{
"criteria": "cpe:2.3:a:fortinet:fortiweb:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "5F9F1235-608A-4301-904F-8CA38A153E88",
"versionEndIncluding": "6.2.6",
"versionStartIncluding": "6.2.0"
},
{
"criteria": "cpe:2.3:a:fortinet:fortiweb:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "F59449EE-C44E-4EE7-80DC-5194A9B5B4CD",
"versionEndIncluding": "6.3.15",
"versionStartIncluding": "6.3.0"
},
{
"criteria": "cpe:2.3:a:fortinet:fortiweb:6.1.0:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "96B929BB-7B7A-40D2-AB13-D4FDD41FD159"
},
{
"criteria": "cpe:2.3:a:fortinet:fortiweb:6.1.1:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "1A3C5370-3453-4F07-B551-7E36F815578C"
},
{
"criteria": "cpe:2.3:a:fortinet:fortiweb:6.1.2:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "415AF153-2A59-488B-A78B-D98B7F39B5AF"
},
{
"criteria": "cpe:2.3:a:fortinet:fortiweb:6.4.0:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "74A92A08-E6F6-4522-A6DA-061950AD3525"
},
{
"criteria": "cpe:2.3:a:fortinet:fortiweb:6.4.1:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "A6A3D2C4-C3FA-4E12-9156-DAFEA4E00BCC"
},
{
"criteria": "cpe:2.3:a:fortinet:fortiweb:6.4.2:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "6775BE1F-184A-45D2-9D8D-AA8F40227988"
}
],
"operator": "OR"
}
]
}
],
"sourceIdentifier": "psirt@fortinet.com"
}