{"containers": {"cna": {"affected": [{"product": "Frontend", "vendor": "Zabbix", "versions": [{"status": "affected", "version": "5.4.0 - 5.4.8"}, {"lessThan": "5.4.9*", "status": "unaffected", "version": "5.4.9", "versionType": "custom"}]}], "credits": [{"lang": "en", "value": "Zabbix wants to thank Thomas Chauchefoin from SonarSource for reporting this issue to us"}], "datePublic": "2021-11-22T00:00:00.000Z", "descriptions": [{"lang": "en", "value": "In the case of instances where the SAML SSO authentication is enabled (non-default), session data can be modified by a malicious actor, because a user login stored in the session was not verified. Malicious unauthenticated actor may exploit this issue to escalate privileges and gain admin access to Zabbix Frontend. To perform the attack, SAML authentication is required to be enabled and the actor has to know the username of Zabbix user (or use the guest account, which is disabled by default)."}], "metrics": [{"cvssV3_1": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 9.1, "baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N", "version": "3.1"}}], "problemTypes": [{"descriptions": [{"cweId": "CWE-290", "description": "CWE-290 Authentication Bypass by Spoofing", "lang": "en", "type": "CWE"}]}], "providerMetadata": {"dateUpdated": "2022-01-13T15:50:39.000Z", "orgId": "72de3e22-0555-4a0d-ae81-9249e0f0a1e8", "shortName": "Zabbix"}, "references": [{"tags": ["x_refsource_MISC"], "url": "https://support.zabbix.com/browse/ZBX-20350"}], "solutions": [{"lang": "en", "value": "To remediate this vulnerability, install the updates or if an immediate update is not possible, follow the presented workarounds."}], "source": {"discovery": "EXTERNAL"}, "title": "Unsafe client-side session storage leading to authentication bypass/instance takeover via Zabbix Frontend with configured SAML", "workarounds": [{"lang": "en", "value": "Disable SAML authentication"}], "x_generator": {"engine": "Vulnogram 0.0.9"}, "x_legacyV4Record": {"CVE_data_meta": {"ASSIGNER": "security@zabbix.com", "DATE_PUBLIC": "2021-11-22T14:03:00.000Z", "ID": "CVE-2022-23131", "STATE": "PUBLIC", "TITLE": "Unsafe client-side session storage leading to authentication bypass/instance takeover via Zabbix Frontend with configured SAML"}, "affects": {"vendor": {"vendor_data": [{"product": {"product_data": [{"product_name": "Frontend", "version": {"version_data": [{"version_affected": "=", "version_name": "5.4.0 - 5.4.8", "version_value": "5.4.0 - 5.4.8"}, {"version_affected": "!>=", "version_name": "5.4.9", "version_value": "5.4.9"}]}}]}, "vendor_name": "Zabbix"}]}}, "credit": [{"lang": "eng", "value": "Zabbix wants to thank Thomas Chauchefoin from SonarSource for reporting this issue to us"}], "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": {"description_data": [{"lang": "eng", "value": "In the case of instances where the SAML SSO authentication is enabled (non-default), session data can be modified by a malicious actor, because a user login stored in the session was not verified. Malicious unauthenticated actor may exploit this issue to escalate privileges and gain admin access to Zabbix Frontend. To perform the attack, SAML authentication is required to be enabled and the actor has to know the username of Zabbix user (or use the guest account, which is disabled by default)."}]}, "generator": {"engine": "Vulnogram 0.0.9"}, "impact": {"cvss": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 9.1, "baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N", "version": "3.1"}}, "problemtype": {"problemtype_data": [{"description": [{"lang": "eng", "value": "CWE-290 Authentication Bypass by Spoofing"}]}]}, "references": {"reference_data": [{"name": "https://support.zabbix.com/browse/ZBX-20350", "refsource": "MISC", "url": "https://support.zabbix.com/browse/ZBX-20350"}]}, "solution": [{"lang": "en", "value": "To remediate this vulnerability, install the updates or if an immediate update is not possible, follow the presented workarounds."}], "source": {"discovery": "EXTERNAL"}, "work_around": [{"lang": "en", "value": "Disable SAML authentication"}]}}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-03T03:36:20.024Z"}, "title": "CVE Program Container", "references": [{"tags": ["x_refsource_MISC", "x_transferred"], "url": "https://support.zabbix.com/browse/ZBX-20350"}]}, {"metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2022-23131", "role": "CISA Coordinator", "options": [{"Exploitation": "active"}, {"Automatable": "yes"}, {"Technical Impact": "total"}], "version": "2.0.3", "timestamp": "2025-01-29T17:20:59.458483Z"}}}, {"other": {"type": "kev", "content": {"dateAdded": "2022-02-22", "reference": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2022-23131"}}}], "references": [{"url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2022-23131", "tags": ["government-resource"]}], "timeline": [{"time": "2022-02-22T00:00:00.000Z", "lang": "en", "value": "CVE-2022-23131 added to CISA KEV"}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2025-10-21T23:15:49.275Z"}}]}, "cveMetadata": {"assignerOrgId": "72de3e22-0555-4a0d-ae81-9249e0f0a1e8", "assignerShortName": "Zabbix", "cveId": "CVE-2022-23131", "datePublished": "2022-01-13T15:50:39.137Z", "dateReserved": "2022-01-11T00:00:00.000Z", "dateUpdated": "2025-10-21T23:15:49.275Z", "state": "PUBLISHED"}, "dataType": "CVE_RECORD", "dataVersion": "5.1"}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CVE Program Container", "references": [{"url": "https://support.zabbix.com/browse/ZBX-20350", "tags": ["x_refsource_MISC", "x_transferred"]}], "providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-03T03:36:20.024Z"}}, {"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2022-23131", "role": "CISA Coordinator", "options": [{"Exploitation": "active"}, {"Automatable": "yes"}, {"Technical Impact": "total"}], "version": "2.0.3", "timestamp": "2025-01-29T17:20:59.458483Z"}}}, {"other": {"type": "kev", "content": {"dateAdded": "2022-02-22", "reference": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2022-23131"}}}], "timeline": [{"lang": "en", "time": "2022-02-22T00:00:00.000Z", "value": "CVE-2022-23131 added to CISA KEV"}], "references": [{"url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2022-23131", "tags": ["government-resource"]}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2025-01-29T17:21:05.198Z"}}], "cna": {"title": "Unsafe client-side session storage leading to authentication bypass/instance takeover via Zabbix Frontend with configured SAML", "source": {"discovery": "EXTERNAL"}, "credits": [{"lang": "en", "value": "Zabbix wants to thank Thomas Chauchefoin from SonarSource for reporting this issue to us"}], "metrics": [{"cvssV3_1": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 9.1, "attackVector": "NETWORK", "baseSeverity": "CRITICAL", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}}], "affected": [{"vendor": "Zabbix", "product": "Frontend", "versions": [{"status": "affected", "version": "5.4.0 - 5.4.8"}, {"status": "unaffected", "version": "5.4.9", "lessThan": "5.4.9*", "versionType": "custom"}]}], "solutions": [{"lang": "en", "value": "To remediate this vulnerability, install the updates or if an immediate update is not possible, follow the presented workarounds."}], "datePublic": "2021-11-22T00:00:00.000Z", "references": [{"url": "https://support.zabbix.com/browse/ZBX-20350", "tags": ["x_refsource_MISC"]}], "workarounds": [{"lang": "en", "value": "Disable SAML authentication"}], "x_generator": {"engine": "Vulnogram 0.0.9"}, "descriptions": [{"lang": "en", "value": "In the case of instances where the SAML SSO authentication is enabled (non-default), session data can be modified by a malicious actor, because a user login stored in the session was not verified. Malicious unauthenticated actor may exploit this issue to escalate privileges and gain admin access to Zabbix Frontend. To perform the attack, SAML authentication is required to be enabled and the actor has to know the username of Zabbix user (or use the guest account, which is disabled by default)."}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-290", "description": "CWE-290 Authentication Bypass by Spoofing"}]}], "providerMetadata": {"orgId": "72de3e22-0555-4a0d-ae81-9249e0f0a1e8", "shortName": "Zabbix", "dateUpdated": "2022-01-13T15:50:39.000Z"}, "x_legacyV4Record": {"credit": [{"lang": "eng", "value": "Zabbix wants to thank Thomas Chauchefoin from SonarSource for reporting this issue to us"}], "impact": {"cvss": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 9.1, "attackVector": "NETWORK", "baseSeverity": "CRITICAL", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}}, "source": {"discovery": "EXTERNAL"}, "affects": {"vendor": {"vendor_data": [{"product": {"product_data": [{"version": {"version_data": [{"version_name": "5.4.0 - 5.4.8", "version_value": "5.4.0 - 5.4.8", "version_affected": "="}, {"version_name": "5.4.9", "version_value": "5.4.9", "version_affected": "!>="}]}, "product_name": "Frontend"}]}, "vendor_name": "Zabbix"}]}}, "solution": [{"lang": "en", "value": "To remediate this vulnerability, install the updates or if an immediate update is not possible, follow the presented workarounds."}], "data_type": "CVE", "generator": {"engine": "Vulnogram 0.0.9"}, "references": {"reference_data": [{"url": "https://support.zabbix.com/browse/ZBX-20350", "name": "https://support.zabbix.com/browse/ZBX-20350", "refsource": "MISC"}]}, "data_format": "MITRE", "description": {"description_data": [{"lang": "eng", "value": "In the case of instances where the SAML SSO authentication is enabled (non-default), session data can be modified by a malicious actor, because a user login stored in the session was not verified. Malicious unauthenticated actor may exploit this issue to escalate privileges and gain admin access to Zabbix Frontend. To perform the attack, SAML authentication is required to be enabled and the actor has to know the username of Zabbix user (or use the guest account, which is disabled by default)."}]}, "problemtype": {"problemtype_data": [{"description": [{"lang": "eng", "value": "CWE-290 Authentication Bypass by Spoofing"}]}]}, "work_around": [{"lang": "en", "value": "Disable SAML authentication"}], "data_version": "4.0", "CVE_data_meta": {"ID": "CVE-2022-23131", "STATE": "PUBLIC", "TITLE": "Unsafe client-side session storage leading to authentication bypass/instance takeover via Zabbix Frontend with configured SAML", "ASSIGNER": "security@zabbix.com", "DATE_PUBLIC": "2021-11-22T14:03:00.000Z"}}}}, "cveMetadata": {"cveId": "CVE-2022-23131", "state": "PUBLISHED", "dateUpdated": "2025-10-21T23:15:49.275Z", "dateReserved": "2022-01-11T00:00:00.000Z", "assignerOrgId": "72de3e22-0555-4a0d-ae81-9249e0f0a1e8", "datePublished": "2022-01-13T15:50:39.137Z", "assignerShortName": "Zabbix"}, "dataVersion": "5.1"}

{"affected": [{"affectedData": [{"product": "Frontend", "vendor": "Zabbix", "versions": [{"status": "affected", "version": "5.4.0 - 5.4.8"}, {"lessThan": "5.4.9*", "status": "unaffected", "version": "5.4.9", "versionType": "custom"}]}], "source": "security@zabbix.com"}], "cisaActionDue": "2022-03-08", "cisaExploitAdd": "2022-02-22", "cisaRequiredAction": "Apply updates per vendor instructions.", "cisaVulnerabilityName": "Zabbix Frontend Authentication Bypass Vulnerability", "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:zabbix:zabbix:*:*:*:*:*:*:*:*", "matchCriteriaId": "19429F9A-8623-4BA9-984B-4982418C21CD", "versionEndIncluding": "5.4.8", "versionStartIncluding": "5.4.0", "vulnerable": true}, {"criteria": "cpe:2.3:a:zabbix:zabbix:6.0.0:alpha1:*:*:*:*:*:*", "matchCriteriaId": "0DC67B03-AF43-45C9-8EAC-D60DA5887712", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In the case of instances where the SAML SSO authentication is enabled (non-default), session data can be modified by a malicious actor, because a user login stored in the session was not verified. Malicious unauthenticated actor may exploit this issue to escalate privileges and gain admin access to Zabbix Frontend. To perform the attack, SAML authentication is required to be enabled and the actor has to know the username of Zabbix user (or use the guest account, which is disabled by default)."}, {"lang": "es", "value": "En el caso de las instancias en las que la autenticaci\u00f3n SAML SSO est\u00e1 habilitada (no por defecto), los datos de la sesi\u00f3n pueden ser modificados por un actor malicioso, ya que un login de usuario almacenado en la sesi\u00f3n no fue verificado. Un actor malicioso no autenticado puede explotar este problema para escalar privilegios y conseguir acceso de administrador a Zabbix Frontend. Para llevar a cabo el ataque, es requerido que la autenticaci\u00f3n SAML est\u00e9 habilitada y que el actor conozca el nombre de usuario de Zabbix (o que use la cuenta de invitado, que est\u00e1 deshabilitada por defecto)"}], "id": "CVE-2022-23131", "lastModified": "2026-06-17T04:29:34.147", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "MEDIUM", "cvssData": {"accessComplexity": "HIGH", "accessVector": "NETWORK", "authentication": "NONE", "availabilityImpact": "PARTIAL", "baseScore": 5.1, "confidentialityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "vectorString": "AV:N/AC:H/Au:N/C:P/I:P/A:P", "version": "2.0"}, "exploitabilityScore": 4.9, "impactScore": 6.4, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false}], "cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 9.1, "baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 5.2, "source": "security@zabbix.com", "type": "Secondary"}, {"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 9.8, "baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 5.9, "source": "nvd@nist.gov", "type": "Primary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2022-23131", "options": [{"exploitation": "active"}, {"automatable": "yes"}, {"technicalImpact": "total"}], "role": "CISA Coordinator", "timestamp": "2025-01-29T17:20:59.458483Z", "version": "2.0.3"}}]}, "published": "2022-01-13T16:15:08.053", "references": [{"source": "security@zabbix.com", "tags": ["Issue Tracking", "Patch", "Vendor Advisory"], "url": "https://support.zabbix.com/browse/ZBX-20350"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Issue Tracking", "Patch", "Vendor Advisory"], "url": "https://support.zabbix.com/browse/ZBX-20350"}, {"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "tags": ["US Government Resource"], "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2022-23131"}], "sourceIdentifier": "security@zabbix.com", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-290"}], "source": "security@zabbix.com", "type": "Secondary"}, {"description": [{"lang": "en", "value": "CWE-290"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{}

{}