fkie_cve-2018-6794
Vulnerability from fkie_nvd
Published
2018-02-07 05:29
Modified
2024-11-21 04:11
Severity ?
Summary
Suricata before 4.0.4 is prone to an HTTP detection bypass vulnerability in detect.c and stream-tcp.c. If a malicious server breaks a normal TCP flow and sends data before the 3-way handshake is complete, then the data sent by the malicious server will be accepted by web clients such as a web browser or Linux CLI utilities, but ignored by Suricata IDS signatures. This mostly affects IDS signatures for the HTTP protocol and TCP stream content; signatures for TCP packets will inspect such network traffic as usual.
References
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| suricata-ids | suricata | * | |
| debian | debian_linux | 8.0 |
{
"configurations": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:a:suricata-ids:suricata:*:*:*:*:*:*:*:*",
"matchCriteriaId": "8BF4519B-F9BA-4476-B76E-BD28796301E8",
"versionEndExcluding": "4.0.4",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
},
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*",
"matchCriteriaId": "C11E6FB0-C8C0-4527-9AA0-CB9B316F8F43",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "Suricata before 4.0.4 is prone to an HTTP detection bypass vulnerability in detect.c and stream-tcp.c. If a malicious server breaks a normal TCP flow and sends data before the 3-way handshake is complete, then the data sent by the malicious server will be accepted by web clients such as a web browser or Linux CLI utilities, but ignored by Suricata IDS signatures. This mostly affects IDS signatures for the HTTP protocol and TCP stream content; signatures for TCP packets will inspect such network traffic as usual."
},
{
"lang": "es",
"value": "Suricata en versiones anteriores a la 4.0.4 es propenso a una vulnerabilidad de omisi\u00f3n de detecci\u00f3n HTTP en detect.c y stream-tcp.c. Si un servidor malicioso interrumpe un flujo TCP normal y env\u00eda datos antes de que se complete el handshake tridireccional, los datos enviados por el servidor malicioso se aceptar\u00e1n por parte de clientes web como el navegador web o herramientas de interfaz de l\u00ednea de comandos de Linux, pero las firmas IDS de Suricata los ignorar\u00e1n. Esto afecta a la mayor\u00eda de firmas IDS para el contenido del flujo TCP y los protocolos HTTP. Las firmas para los paquetes TCP inspeccionar\u00e1n ese tr\u00e1fico de red como de costumbre."
}
],
"id": "CVE-2018-6794",
"lastModified": "2024-11-21T04:11:12.810",
"metrics": {
"cvssMetricV2": [
{
"acInsufInfo": true,
"baseSeverity": "MEDIUM",
"cvssData": {
"accessComplexity": "LOW",
"accessVector": "NETWORK",
"authentication": "NONE",
"availabilityImpact": "NONE",
"baseScore": 5.0,
"confidentialityImpact": "NONE",
"integrityImpact": "PARTIAL",
"vectorString": "AV:N/AC:L/Au:N/C:N/I:P/A:N",
"version": "2.0"
},
"exploitabilityScore": 10.0,
"impactScore": 2.9,
"obtainAllPrivilege": false,
"obtainOtherPrivilege": false,
"obtainUserPrivilege": false,
"source": "nvd@nist.gov",
"type": "Primary",
"userInteractionRequired": false
}
],
"cvssMetricV30": [
{
"cvssData": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 5.3,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "NONE",
"integrityImpact": "LOW",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N",
"version": "3.0"
},
"exploitabilityScore": 3.9,
"impactScore": 1.4,
"source": "nvd@nist.gov",
"type": "Primary"
}
]
},
"published": "2018-02-07T05:29:00.260",
"references": [
{
"source": "cve@mitre.org",
"tags": [
"Patch",
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],
"url": "https://github.com/OISF/suricata/pull/3202/commits/e1ef57c848bbe4e567d5d4b66d346a742e3f77a1"
},
{
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"tags": [
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"url": "https://lists.debian.org/debian-lts-announce/2018/12/msg00000.html"
},
{
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"url": "https://redmine.openinfosecfoundation.org/issues/2427"
},
{
"source": "cve@mitre.org",
"tags": [
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],
"url": "https://suricata-ids.org/2018/02/14/suricata-4-0-4-available/"
},
{
"source": "cve@mitre.org",
"tags": [
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"url": "https://www.exploit-db.com/exploits/44247/"
},
{
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"tags": [
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"url": "https://github.com/OISF/suricata/pull/3202/commits/e1ef57c848bbe4e567d5d4b66d346a742e3f77a1"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
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],
"url": "https://lists.debian.org/debian-lts-announce/2018/12/msg00000.html"
},
{
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"tags": [
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],
"url": "https://redmine.openinfosecfoundation.org/issues/2427"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
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"url": "https://suricata-ids.org/2018/02/14/suricata-4-0-4-available/"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Exploit",
"Third Party Advisory",
"VDB Entry"
],
"url": "https://www.exploit-db.com/exploits/44247/"
}
],
"sourceIdentifier": "cve@mitre.org",
"vulnStatus": "Modified",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-693"
}
],
"source": "nvd@nist.gov",
"type": "Primary"
}
]
}
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.
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