CVE-2018-17187
The Apache Qpid Proton-J transport includes an optional wrapper layer to perform TLS, enabled by use of the 'transport.ssl(...)' methods. Unless a verification mode was explicitly configured, client and server modes previously defaulted as documented to not verifying a peer certificate, with options to configure this explicitly or select a certificate verification mode with or without hostname verification being performed. The latter hostname verifying mode was not implemented in Apache Qpid Proton-J versions 0.3 to 0.29.0, with attempts to use it resulting in an exception.
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This left only the option to verify the certificate is trusted, leaving such a client vulnerable to Man In The Middle (MITM) attack. Uses of the Proton-J protocol engine which do not utilise the optional transport TLS wrapper are not impacted, e.g. usage within Qpid JMS. Uses of Proton-J utilising the optional transport TLS wrapper layer that wish to enable hostname verification must be upgraded to version 0.30.0 or later and utilise the VerifyMode#VERIFY_PEER_NAME configuration, which is now the default for client mode usage unless configured otherwise.
CVSS
- Versión: 3.0
- Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
- Puntuación base: 7.4
Probabilidad de explotación (EPSS)
- Probabilidad de explotación en los próximos 30 días: 2.54%
- Percentil entre todas las CVEs puntuadas: 84
- 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-295
Referencias
- http://www.securityfocus.com/bid/105935
- https://issues.apache.org/jira/browse/PROTON-1962
- https://mail-archives.apache.org/mod_mbox/qpid-users/201811.mbox/%3CCAFitrpQSV73Vz7rJYfLJK7gvEymZSCR5ooWUeU8j4jzRydk-eg%40mail.gmail.com%3E
- https://qpid.apache.org/cves/CVE-2018-17187.html
- http://www.securityfocus.com/bid/105935
- https://issues.apache.org/jira/browse/PROTON-1962
- https://mail-archives.apache.org/mod_mbox/qpid-users/201811.mbox/%3CCAFitrpQSV73Vz7rJYfLJK7gvEymZSCR5ooWUeU8j4jzRydk-eg%40mail.gmail.com%3E
- https://qpid.apache.org/cves/CVE-2018-17187.html
JSON original (NVD)
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{
"id": "CVE-2018-17187",
"cveTags": [],
"metrics": {
"cvssMetricV2": [
{
"type": "Primary",
"source": "nvd@nist.gov",
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"version": "2.0",
"baseScore": 5.8,
"accessVector": "NETWORK",
"vectorString": "AV:N/AC:M/Au:N/C:P/I:P/A:N",
"authentication": "NONE",
"integrityImpact": "PARTIAL",
"accessComplexity": "MEDIUM",
"availabilityImpact": "NONE",
"confidentialityImpact": "PARTIAL"
},
"acInsufInfo": false,
"impactScore": 4.9,
"baseSeverity": "MEDIUM",
"obtainAllPrivilege": false,
"exploitabilityScore": 8.6,
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"obtainOtherPrivilege": false,
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}
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"baseSeverity": "HIGH",
"vectorString": "CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N",
"integrityImpact": "HIGH",
"userInteraction": "NONE",
"attackComplexity": "HIGH",
"availabilityImpact": "NONE",
"privilegesRequired": "NONE",
"confidentialityImpact": "HIGH"
},
"impactScore": 5.2,
"exploitabilityScore": 2.2
}
]
},
"affected": [
{
"source": "security@apache.org",
"affectedData": [
{
"vendor": "Apache Software Foundation",
"product": "Apache Qpid Proton-J",
"versions": [
{
"status": "affected",
"version": "Apache Qpid Proton-J 0.3 to 0.29.0"
}
]
}
]
}
],
"published": "2018-11-13T15:29:00.313",
"references": [
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"tags": [
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"vulnStatus": "Modified",
"weaknesses": [
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"source": "nvd@nist.gov",
"description": [
{
"lang": "en",
"value": "CWE-295"
}
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}
],
"descriptions": [
{
"lang": "en",
"value": "The Apache Qpid Proton-J transport includes an optional wrapper layer to perform TLS, enabled by use of the 'transport.ssl(...)' methods. Unless a verification mode was explicitly configured, client and server modes previously defaulted as documented to not verifying a peer certificate, with options to configure this explicitly or select a certificate verification mode with or without hostname verification being performed. The latter hostname verifying mode was not implemented in Apache Qpid Proton-J versions 0.3 to 0.29.0, with attempts to use it resulting in an exception. This left only the option to verify the certificate is trusted, leaving such a client vulnerable to Man In The Middle (MITM) attack. Uses of the Proton-J protocol engine which do not utilise the optional transport TLS wrapper are not impacted, e.g. usage within Qpid JMS. Uses of Proton-J utilising the optional transport TLS wrapper layer that wish to enable hostname verification must be upgraded to version 0.30.0 or later and utilise the VerifyMode#VERIFY_PEER_NAME configuration, which is now the default for client mode usage unless configured otherwise."
},
{
"lang": "es",
"value": "El transporte de Apache Qpid Proton-J incluye una capa wrapper opcional para realizar TLS, habilitado por el uso de los métodos \"transport.ssl(...)\". A menos que hubiese un modo de verificación explícito, los modos cliente y servidor se consideraban por defecto como documentados para así no verificar el certificado peer, con opciones para configurar esto de forma explícita o seleccionar un modo de verificación de certificado con o sin un proceso de verificación de nombres de host. Este último modo de verificación de nombres de host no se implementó en Apache Qpid Proton-J, de la versión 0.3 a la 0.29.0; los intentos para emplearlo resultaron en una excepción. Esto solo dejó una opción para verificar que se confía en el certificado, dejando que el cliente sea vulnerable a un ataque Man-in-the-Middle (MitM). Los usos del motor del protocolo Proton-J que no emplean el wrapper opcional de transporte TLS no se han visto impactados (p. ej., su uso en Qpid JMS). Los usos de Proton-J que empleen la capa wrapper opcional de transporte TLS que deseen habilitar la verificación de nombres de host deben actualizarse a la versión 0.30.0 o posteriores y emplear la configuración VerifyMode#VERIFY_PEER_NAME, que ahora es la predeterminada para el uso del modo cliente a no ser que se configure de otra forma."
}
],
"lastModified": "2026-06-17T01:45:29.907",
"configurations": [
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:a:apache:qpid_proton-j:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "62762E8D-905E-46EB-9C97-3CE19EB8443F",
"versionEndIncluding": "0.29.0",
"versionStartIncluding": "0.3"
}
],
"operator": "OR"
}
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}
],
"sourceIdentifier": "security@apache.org"
}