CVE-2021-20021

{"id": "CVE-2021-20021", "cveTags": [], "metrics": {"cvssMetricV2": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"version": "2.0", "baseScore": 7.5, "accessVector": "NETWORK", "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P", "authentication": "NONE", "integrityImpact": "PARTIAL", "accessComplexity": "LOW", "availabilityImpact": "PARTIAL", "confidentialityImpact": "PARTIAL"}, "acInsufInfo": false, "impactScore": 6.4, "baseSeverity": "HIGH", "obtainAllPrivilege": false, "exploitabilityScore": 10.0, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false}], "cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 9.8, "attackVector": "NETWORK", "baseSeverity": "CRITICAL", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}, "impactScore": 5.9, "exploitabilityScore": 3.9}, {"type": "Secondary", "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 9.8, "attackVector": "NETWORK", "baseSeverity": "CRITICAL", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}, "impactScore": 5.9, "exploitabilityScore": 3.9}]}, "published": "2021-04-09T18:15:13.380", "references": [{"url": "https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2021-0007", "tags": ["Vendor Advisory"], "source": "PSIRT@sonicwall.com"}, {"url": "https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2021-0007", "tags": ["Vendor Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-20021", "tags": ["US Government Resource"], "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Secondary", "source": "PSIRT@sonicwall.com", "description": [{"lang": "en", "value": "CWE-269"}]}, {"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-269"}]}], "descriptions": [{"lang": "en", "value": "A vulnerability in the SonicWall Email Security version 10.0.9.x allows an attacker to create an administrative account by sending a crafted HTTP request to the remote host."}, {"lang": "es", "value": "Una vulnerabilidad en SonicWall Email Security versi\u00f3n 10.0.9.x, permite a un atacante crear una cuenta administrativa mediante el env\u00edo de una petici\u00f3n HTTP dise\u00f1ada en el host remoto"}], "lastModified": "2025-11-10T19:04:58.607", "cisaActionDue": "2021-11-17", "cisaExploitAdd": "2021-11-03", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:sonicwall:email_security:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "08AD853A-995F-435D-B2AC-A7A0745D6172", "versionEndExcluding": "10.0.9.6103"}], "operator": "OR"}, {"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "A2572D17-1DE6-457B-99CC-64AFD54487EA"}], "operator": "OR"}], "operator": "AND"}, {"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:sonicwall:email_security_appliance_9000_firmware:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "A06452B5-695F-4CD8-BB72-AFFB9C4BAA2B", "versionEndExcluding": "10.0.9.6105"}], "operator": "OR"}, {"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:h:sonicwall:email_security_appliance_9000:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "C2434930-79AB-4AA9-AAC8-B116F3CD5CC0"}], "operator": "OR"}], "operator": "AND"}, {"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:sonicwall:email_security_appliance_3300_firmware:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "AA584C94-2321-4BBC-9FCD-D7C13C57F1DA", "versionEndExcluding": "10.0.9.6105"}], "operator": "OR"}, {"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:h:sonicwall:email_security_appliance_3300:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "ECF2B5A6-B62F-444E-BDB3-0084896CD83B"}], "operator": "OR"}], "operator": "AND"}, {"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:sonicwall:email_security_appliance_4300_firmware:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "8C3C3AB8-E169-4DAD-AB81-2A7D54EB2CB4", "versionEndExcluding": "10.0.9.6105"}], "operator": "OR"}, {"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:h:sonicwall:email_security_appliance_4300:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "A18DCCAF-A373-4550-805B-EF329643B068"}], "operator": "OR"}], "operator": "AND"}, {"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:sonicwall:email_security_appliance_8300_firmware:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "866762BF-F65B-4C9C-A08E-1F25041576AE", "versionEndExcluding": "10.0.9.6105"}], "operator": "OR"}, {"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:h:sonicwall:email_security_appliance_8300:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "DC5803B4-57F1-4F0C-A459-F367F56AFE16"}], "operator": "OR"}], "operator": "AND"}, {"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:sonicwall:email_security_appliance_5000_firmware:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "53641CB5-CC2E-4C12-9125-64DCE99F0838", "versionEndExcluding": "10.0.9.6105"}], "operator": "OR"}, {"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:h:sonicwall:email_security_appliance_5000:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "BA9126B7-5C64-4692-954C-6EF71261862C"}], "operator": "OR"}], "operator": "AND"}, {"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:sonicwall:email_security_appliance_7000_firmware:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "113E3915-7EF3-42CA-8429-5310EA631DF1", "versionEndExcluding": "10.0.9.6105"}], "operator": "OR"}, {"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:h:sonicwall:email_security_appliance_7000:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "A114E829-5FC6-4321-8D28-C63EC09F9099"}], "operator": "OR"}], "operator": "AND"}, {"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:sonicwall:email_security_appliance_5050_firmware:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "4803B3D7-E19F-4EE2-86BC-1DBA18A7E5E6", "versionEndExcluding": "10.0.9.6105"}], "operator": "OR"}, {"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:h:sonicwall:email_security_appliance_5050:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "271F06DD-8DAA-46EF-A803-659EA253CC63"}], "operator": "OR"}], "operator": "AND"}, {"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:sonicwall:email_security_appliance_7050_firmware:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "75D58601-90F8-4501-9FD0-FA1E1E9DB546", "versionEndExcluding": "10.0.9.6105"}], "operator": "OR"}, {"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:h:sonicwall:email_security_appliance_7050:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "443B635B-6B08-479B-A635-26724B192BF0"}], "operator": "OR"}], "operator": "AND"}, {"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:sonicwall:email_security_virtual_appliance:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "7A32D7D5-3EC7-4F6E-9C24-EDCFF7EC5E7E", "versionEndExcluding": "10.0.9.6105"}, {"criteria": "cpe:2.3:a:sonicwall:hosted_email_security:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "D1824412-5A4F-4D69-996E-D4B3E813D21C", "versionEndExcluding": "10.0.9.6103"}], "operator": "OR"}]}], "sourceIdentifier": "PSIRT@sonicwall.com", "cisaRequiredAction": "Apply updates per vendor instructions.", "cisaVulnerabilityName": "SonicWall Email Security Improper Privilege Management Vulnerability"}