{"dataType": "CVE_RECORD", "dataVersion": "5.0", "cveMetadata": {"state": "PUBLISHED", "cveId": "CVE-2021-37533", "assignerOrgId": "f0158376-9dc2-43b6-827c-5f631a4d8d09", "assignerShortName": "apache", "dateUpdated": "2022-12-30T00:00:00", "dateReserved": "2021-07-26T00:00:00", "datePublished": "2022-12-03T00:00:00"}, "containers": {"cna": {"title": "Apache Commons Net's FTP client trusts the host from PASV response by default", "providerMetadata": {"orgId": "f0158376-9dc2-43b6-827c-5f631a4d8d09", "shortName": "apache", "dateUpdated": "2022-12-30T00:00:00"}, "descriptions": [{"lang": "en", "value": "Prior to Apache Commons Net 3.9.0, Net's FTP client trusts the host from PASV response by default. A malicious server can redirect the Commons Net code to use a different host, but the user has to connect to the malicious server in the first place. This may lead to leakage of information about services running on the private network of the client. The default in version 3.9.0 is now false to ignore such hosts, as cURL does. See https://issues.apache.org/jira/browse/NET-711."}], "affected": [{"vendor": "Apache Software Foundation", "product": "Apache Commons Net", "versions": [{"version": "Apache Commons Net", "status": "affected", "lessThan": "3.9.0", "versionType": "custom"}]}], "references": [{"url": "https://lists.apache.org/thread/o6yn9r9x6s94v97264hmgol1sf48mvx7"}, {"name": "[oss-security] 20221203 CVE-2021-37533: Apache Commons Net's FTP client trusts the host from PASV response by default", "tags": ["mailing-list"], "url": "http://www.openwall.com/lists/oss-security/2022/12/03/1"}, {"name": "[debian-lts-announce] 20221229 [SECURITY] [DLA 3251-1] libcommons-net-java security update", "tags": ["mailing-list"], "url": "https://lists.debian.org/debian-lts-announce/2022/12/msg00038.html"}, {"name": "DSA-5307", "tags": ["vendor-advisory"], "url": "https://www.debian.org/security/2022/dsa-5307"}], "credits": [{"lang": "en", "value": "Apache Commons would like to thank ZeddYu Lu for reporting this issue."}], "metrics": [{"other": {"type": "unknown", "content": {"other": "low"}}}], "problemTypes": [{"descriptions": [{"type": "CWE", "lang": "en", "description": "CWE-20 Improper Input Validation", "cweId": "CWE-20"}]}], "x_generator": {"engine": "Vulnogram 0.0.9"}, "source": {"defect": ["NET-711"], "discovery": "UNKNOWN"}}}}

{"configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:apache:commons_net:*:*:*:*:*:*:*:*", "matchCriteriaId": "8D18D6BE-FFA1-46BD-AA12-6C84B7E7B896", "versionEndExcluding": "3.9.0", "vulnerable": true}], "negate": false, "operator": "OR"}]}, {"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*", "matchCriteriaId": "07B237A9-69A3-4A9C-9DA0-4E06BD37AE73", "vulnerable": true}, {"criteria": "cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*", "matchCriteriaId": "FA6FEEC2-9F11-4643-8827-749718254FED", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "descriptions": [{"lang": "en", "value": "Prior to Apache Commons Net 3.9.0, Net's FTP client trusts the host from PASV response by default. A malicious server can redirect the Commons Net code to use a different host, but the user has to connect to the malicious server in the first place. This may lead to leakage of information about services running on the private network of the client. The default in version 3.9.0 is now false to ignore such hosts, as cURL does. See https://issues.apache.org/jira/browse/NET-711."}, {"lang": "es", "value": "Antes de Apache Commons Net 3.9.0, el cliente FTP de Net conf\u00eda en el host desde la respuesta PASV de forma predeterminada. Un servidor malicioso puede redirigir el c\u00f3digo de Commons Net para utilizar un host diferente, pero el usuario debe conectarse al servidor malicioso en primer lugar. Esto puede provocar una fuga de informaci\u00f3n sobre los servicios que se ejecutan en la red privada del cliente. El valor predeterminado en la versi\u00f3n 3.9.0 ahora es falso para ignorar dichos hosts, como lo hace cURL. Consulte https://issues.apache.org/jira/browse/NET-711."}], "id": "CVE-2021-37533", "lastModified": "2023-01-10T19:29:09.193", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 6.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2022-12-03T15:15:09.747", "references": [{"source": "security@apache.org", "tags": ["Issue Tracking", "Mailing List", "Third Party Advisory"], "url": "http://www.openwall.com/lists/oss-security/2022/12/03/1"}, {"source": "security@apache.org", "tags": ["Issue Tracking", "Mailing List", "Vendor Advisory"], "url": "https://lists.apache.org/thread/o6yn9r9x6s94v97264hmgol1sf48mvx7"}, {"source": "security@apache.org", "tags": ["Mailing List", "Third Party Advisory"], "url": "https://lists.debian.org/debian-lts-announce/2022/12/msg00038.html"}, {"source": "security@apache.org", "tags": ["Third Party Advisory"], "url": "https://www.debian.org/security/2022/dsa-5307"}], "sourceIdentifier": "security@apache.org", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-20"}], "source": "security@apache.org", "type": "Primary"}]}

{}