CVE-2011-4515
Estado: ModificadaMedia (4.6)—
Siemens WinCC (TIA Portal) 11 uses a reversible algorithm for storing HMI web-application passwords in world-readable and world-writable files, which allows local users to obtain sensitive information by leveraging (1) physical access or (2) Sm@rt Server access.
CVSS
- Versión: 2.0
- Vector: AV:L/AC:L/Au:N/C:P/I:P/A:P
- Puntuación base: 4.6
Probabilidad de explotación (EPSS)
- Probabilidad de explotación en los próximos 30 días: 0.38%
- Percentil entre todas las CVEs puntuadas: 30
- Fecha de la puntuación: 6/10/2026
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-255
Referencias
- http://ics-cert.us-cert.gov/pdf/ICSA-13-079-03.pdf
- http://www.siemens.com/corporate-technology/pool/de/forschungsfelder/siemens_security_advisory_ssa-212483.pdf
- http://ics-cert.us-cert.gov/pdf/ICSA-13-079-03.pdf
- http://www.siemens.com/corporate-technology/pool/de/forschungsfelder/siemens_security_advisory_ssa-212483.pdf
JSON original (NVD)
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{
"id": "CVE-2011-4515",
"cveTags": [],
"metrics": {
"cvssMetricV2": [
{
"type": "Primary",
"source": "nvd@nist.gov",
"cvssData": {
"version": "2.0",
"baseScore": 4.6,
"accessVector": "LOCAL",
"vectorString": "AV:L/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": "MEDIUM",
"obtainAllPrivilege": false,
"exploitabilityScore": 3.9,
"obtainUserPrivilege": false,
"obtainOtherPrivilege": false,
"userInteractionRequired": false
}
]
},
"affected": [
{
"source": "cret@cert.org",
"affectedData": [
{
"vendor": "n/a",
"product": "n/a",
"versions": [
{
"status": "affected",
"version": "n/a"
}
]
}
]
}
],
"published": "2013-03-21T14:55:01.423",
"references": [
{
"url": "http://ics-cert.us-cert.gov/pdf/ICSA-13-079-03.pdf",
"tags": [
"US Government Resource"
],
"source": "cret@cert.org"
},
{
"url": "http://www.siemens.com/corporate-technology/pool/de/forschungsfelder/siemens_security_advisory_ssa-212483.pdf",
"tags": [
"Vendor Advisory"
],
"source": "cret@cert.org"
},
{
"url": "http://ics-cert.us-cert.gov/pdf/ICSA-13-079-03.pdf",
"tags": [
"US Government Resource"
],
"source": "af854a3a-2127-422b-91ae-364da2661108"
},
{
"url": "http://www.siemens.com/corporate-technology/pool/de/forschungsfelder/siemens_security_advisory_ssa-212483.pdf",
"tags": [
"Vendor Advisory"
],
"source": "af854a3a-2127-422b-91ae-364da2661108"
}
],
"vulnStatus": "Modified",
"weaknesses": [
{
"type": "Primary",
"source": "nvd@nist.gov",
"description": [
{
"lang": "en",
"value": "CWE-255"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "Siemens WinCC (TIA Portal) 11 uses a reversible algorithm for storing HMI web-application passwords in world-readable and world-writable files, which allows local users to obtain sensitive information by leveraging (1) physical access or (2) Sm@rt Server access."
},
{
"lang": "es",
"value": "Siemens WinCC (Portal TIA) 11 utiliza un algoritmo reversible para el almacenamiento de contraseñas de aplicaciones HMI Web en archivos legibles por todo el mundo escritura global, lo que permite a usuarios locales obtener información sensible mediante el aprovechamiento de (1) el acceso físico o (2) servidor de acceso Sm@rt."
}
],
"lastModified": "2026-06-16T23:34:58.327",
"configurations": [
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:a:siemens:wincc_tia_portal:11.0:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "AA0630E4-BC67-46D1-90C5-8E5F3AAC86F4"
}
],
"operator": "OR"
}
]
}
],
"evaluatorImpact": "Per http://ics-cert.us-cert.gov/pdf/ICSA-13-079-03.pdf\r\n\r\nINSECURE PASWORD STORAGE\r\nUser credentials for the HMI’s Web application are stored within the HMI’s system. These data are obfuscated in a reversible way and arereadable and writable for users with physical access or Sm@rt Server access to the system.",
"sourceIdentifier": "cret@cert.org"
}