CVE-2021-27927

{"dataType": "CVE_RECORD", "dataVersion": "5.1", "cveMetadata": {"state": "PUBLISHED", "cveId": "CVE-2021-27927", "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca", "assignerShortName": "mitre", "dateUpdated": "2024-08-03T21:33:16.680Z", "dateReserved": "2021-03-03T00:00:00.000Z", "datePublished": "2021-03-03T00:00:00.000Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca", "shortName": "mitre", "dateUpdated": "2023-04-12T00:00:00.000Z"}, "descriptions": [{"lang": "en", "value": "In Zabbix from 4.0.x before 4.0.28rc1, 5.0.0alpha1 before 5.0.10rc1, 5.2.x before 5.2.6rc1, and 5.4.0alpha1 before 5.4.0beta2, the CControllerAuthenticationUpdate controller lacks a CSRF protection mechanism. The code inside this controller calls diableSIDValidation inside the init() method. An attacker doesn't have to know Zabbix user login credentials, but has to know the correct Zabbix URL and contact information of an existing user with sufficient privileges."}], "affected": [{"vendor": "n/a", "product": "n/a", "versions": [{"version": "n/a", "status": "affected"}]}], "references": [{"url": "https://support.zabbix.com/browse/ZBX-18942"}, {"name": "[debian-lts-announce] 20230412 [SECURITY] [DLA 3390-1] zabbix security update", "tags": ["mailing-list"], "url": "https://lists.debian.org/debian-lts-announce/2023/04/msg00013.html"}], "problemTypes": [{"descriptions": [{"type": "text", "lang": "en", "description": "n/a"}]}], "source": {"discovery": "INTERNAL"}}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-03T21:33:16.680Z"}, "title": "CVE Program Container", "references": [{"url": "https://support.zabbix.com/browse/ZBX-18942", "tags": ["x_transferred"]}, {"name": "[debian-lts-announce] 20230412 [SECURITY] [DLA 3390-1] zabbix security update", "tags": ["mailing-list", "x_transferred"], "url": "https://lists.debian.org/debian-lts-announce/2023/04/msg00013.html"}]}]}}

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{"affected": [{"affectedData": [{"product": "n/a", "vendor": "n/a", "versions": [{"status": "affected", "version": "n/a"}]}], "source": "cve@mitre.org"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:zabbix:zabbix:*:*:*:*:*:*:*:*", "matchCriteriaId": "7DBC6970-CABB-481C-9797-A2C27DE6FCCB", "versionEndIncluding": "4.0.27", "versionStartIncluding": "4.0.0", "vulnerable": true}, {"criteria": "cpe:2.3:a:zabbix:zabbix:*:*:*:*:*:*:*:*", "matchCriteriaId": "BD1D7614-E9FA-4DED-BBFA-D872E75757B6", "versionEndIncluding": "5.0.9", "versionStartIncluding": "5.0.0", "vulnerable": true}, {"criteria": "cpe:2.3:a:zabbix:zabbix:*:*:*:*:*:*:*:*", "matchCriteriaId": "5499DEBB-A4E5-4035-8F23-77C1AF3D34E3", "versionEndIncluding": "5.2.3", "versionStartIncluding": "5.2.0", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In Zabbix from 4.0.x before 4.0.28rc1, 5.0.0alpha1 before 5.0.10rc1, 5.2.x before 5.2.6rc1, and 5.4.0alpha1 before 5.4.0beta2, the CControllerAuthenticationUpdate controller lacks a CSRF protection mechanism. The code inside this controller calls diableSIDValidation inside the init() method. An attacker doesn't have to know Zabbix user login credentials, but has to know the correct Zabbix URL and contact information of an existing user with sufficient privileges."}, {"lang": "es", "value": "En Zabbix desde las versiones 4.0.x anteriores a 4.0.28rc1, versiones 5.0.0alpha1 anteriores a 5.0.10rc1, versiones 5.2.x anteriores a 5.2.6rc1, y versiones 5.4.0alpha1 anteriores a 5.4.0beta2, el controlador CControllerAuthenticationUpdate carece de un mecanismo de protecci\u00f3n CSRF. El c\u00f3digo dentro de este controlador llama a diableSIDValidation dentro del m\u00e9todo init(). Un atacante no tiene que conocer las credenciales de inicio de sesi\u00f3n del usuario de Zabbix, pero tiene que conocer la URL correcta de Zabbix y la informaci\u00f3n de contacto de un usuario existente con suficientes privilegios"}], "id": "CVE-2021-27927", "lastModified": "2026-06-17T03:45:37.820", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "MEDIUM", "cvssData": {"accessComplexity": "MEDIUM", "accessVector": "NETWORK", "authentication": "NONE", "availabilityImpact": "PARTIAL", "baseScore": 6.8, "confidentialityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "vectorString": "AV:N/AC:M/Au:N/C:P/I:P/A:P", "version": "2.0"}, "exploitabilityScore": 8.6, "impactScore": 6.4, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": true}], "cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 8.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 5.9, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2021-03-03T17:15:12.753", "references": [{"source": "cve@mitre.org", "url": "https://lists.debian.org/debian-lts-announce/2023/04/msg00013.html"}, {"source": "cve@mitre.org", "tags": ["Issue Tracking", "Patch", "Vendor Advisory"], "url": "https://support.zabbix.com/browse/ZBX-18942"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://lists.debian.org/debian-lts-announce/2023/04/msg00013.html"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Issue Tracking", "Patch", "Vendor Advisory"], "url": "https://support.zabbix.com/browse/ZBX-18942"}], "sourceIdentifier": "cve@mitre.org", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-352"}], "source": "nvd@nist.gov", "type": "Primary"}]}

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