CVE-2019-18277

{"cve": {"data_type": "CVE", "references": {"reference_data": [{"url": "https://git.haproxy.org/?p=haproxy-2.0.git;a=commit;h=196a7df44d8129d1adc795da020b722614d6a581", "name": "https://git.haproxy.org/?p=haproxy-2.0.git;a=commit;h=196a7df44d8129d1adc795da020b722614d6a581", "tags": ["Patch", "Vendor Advisory"], "refsource": "MISC"}, {"url": "https://www.mail-archive.com/haproxy@formilux.org/msg34926.html", "name": "https://www.mail-archive.com/haproxy@formilux.org/msg34926.html", "tags": ["Release Notes"], "refsource": "MISC"}, {"url": "https://nathandavison.com/blog/haproxy-http-request-smuggling", "name": "https://nathandavison.com/blog/haproxy-http-request-smuggling", "tags": ["Exploit", "Third Party Advisory"], "refsource": "MISC"}, {"url": "https://usn.ubuntu.com/4174-1/", "name": "USN-4174-1", "tags": [], "refsource": "UBUNTU"}, {"url": "http://lists.opensuse.org/opensuse-security-announce/2019-12/msg00016.html", "name": "openSUSE-SU-2019:2626", "tags": [], "refsource": "SUSE"}, {"url": "http://lists.opensuse.org/opensuse-security-announce/2019-12/msg00019.html", "name": "openSUSE-SU-2019:2645", "tags": [], "refsource": "SUSE"}, {"url": "https://lists.debian.org/debian-lts-announce/2022/05/msg00045.html", "name": "[debian-lts-announce] 20220530 [SECURITY] [DLA 3034-1] haproxy security update", "tags": [], "refsource": "MLIST"}]}, "data_format": "MITRE", "description": {"description_data": [{"lang": "en", "value": "A flaw was found in HAProxy before 2.0.6. In legacy mode, messages featuring a transfer-encoding header missing the \"chunked\" value were not being correctly rejected. The impact was limited but if combined with the \"http-reuse always\" setting, it could be used to help construct an HTTP request smuggling attack against a vulnerable component employing a lenient parser that would ignore the content-length header as soon as it saw a transfer-encoding one (even if not entirely valid according to the specification)."}]}, "problemtype": {"problemtype_data": [{"description": [{"lang": "en", "value": "CWE-444"}]}]}, "data_version": "4.0", "CVE_data_meta": {"ID": "CVE-2019-18277", "ASSIGNER": "cve@mitre.org"}}, "impact": {"baseMetricV2": {"cvssV2": {"version": "2.0", "baseScore": 4.3, "accessVector": "NETWORK", "vectorString": "AV:N/AC:M/Au:N/C:N/I:P/A:N", "authentication": "NONE", "integrityImpact": "PARTIAL", "accessComplexity": "MEDIUM", "availabilityImpact": "NONE", "confidentialityImpact": "NONE"}, "severity": "MEDIUM", "acInsufInfo": false, "impactScore": 2.9, "obtainAllPrivilege": false, "exploitabilityScore": 8.6, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false}, "baseMetricV3": {"cvssV3": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.5, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "NONE", "confidentialityImpact": "NONE"}, "impactScore": 3.6, "exploitabilityScore": 3.9}}, "publishedDate": "2019-10-23T14:15Z", "configurations": {"nodes": [{"children": [], "operator": "OR", "cpe_match": [{"cpe23Uri": "cpe:2.3:a:haproxy:haproxy:*:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true, "versionEndExcluding": "2.0.6"}]}], "CVE_data_version": "4.0"}, "lastModifiedDate": "2022-06-02T14:15Z"}