CVE-2018-6794

{"id": "CVE-2018-6794", "metrics": {"cvssMetricV2": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"version": "2.0", "baseScore": 5.0, "accessVector": "NETWORK", "vectorString": "AV:N/AC:L/Au:N/C:N/I:P/A:N", "authentication": "NONE", "integrityImpact": "PARTIAL", "accessComplexity": "LOW", "availabilityImpact": "NONE", "confidentialityImpact": "NONE"}, "acInsufInfo": true, "impactScore": 2.9, "baseSeverity": "MEDIUM", "obtainAllPrivilege": false, "exploitabilityScore": 10.0, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false}], "cvssMetricV30": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.0", "baseScore": 5.3, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N", "integrityImpact": "LOW", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "NONE", "confidentialityImpact": "NONE"}, "impactScore": 1.4, "exploitabilityScore": 3.9}]}, "published": "2018-02-07T05:29:00.260", "references": [{"url": "https://github.com/OISF/suricata/pull/3202/commits/e1ef57c848bbe4e567d5d4b66d346a742e3f77a1", "tags": ["Patch", "Third Party Advisory"], "source": "cve@mitre.org"}, {"url": "https://lists.debian.org/debian-lts-announce/2018/12/msg00000.html", "tags": ["Mailing List", "Third Party Advisory"], "source": "cve@mitre.org"}, {"url": "https://redmine.openinfosecfoundation.org/issues/2427", "tags": ["Third Party Advisory"], "source": "cve@mitre.org"}, {"url": "https://suricata-ids.org/2018/02/14/suricata-4-0-4-available/", "tags": ["Vendor Advisory"], "source": "cve@mitre.org"}, {"url": "https://www.exploit-db.com/exploits/44247/", "tags": ["Exploit", "Third Party Advisory", "VDB Entry"], "source": "cve@mitre.org"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-693"}]}], "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."}], "lastModified": "2019-03-01T23:33:08.113", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:suricata-ids:suricata:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "8BF4519B-F9BA-4476-B76E-BD28796301E8", "versionEndExcluding": "4.0.4"}], "operator": "OR"}]}, {"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "C11E6FB0-C8C0-4527-9AA0-CB9B316F8F43"}], "operator": "OR"}]}], "sourceIdentifier": "cve@mitre.org"}