{"containers": {"cna": {"affected": [{"defaultStatus": "unaffected", "product": "MongoDB Server", "vendor": "MongoDB Inc.", "versions": [{"lessThan": "4.0.27", "status": "affected", "version": "4.0", "versionType": "custom"}, {"lessThan": "4.2.16", "status": "affected", "version": "4.2", "versionType": "custom"}, {"lessThan": "4.4.9", "status": "affected", "version": "4.4", "versionType": "custom"}]}], "datePublic": "2021-12-15T00:00:00.000Z", "descriptions": [{"lang": "en", "supportingMedia": [{"base64": false, "type": "text/html", "value": "<p>An attacker with basic CRUD permissions on a replicated collection can run the applyOps command with specially malformed oplog entries, resulting in a potential denial of service on secondaries. This issue affects MongoDB Server v4.0 versions prior to 4.0.27; MongoDB Server v4.2 versions prior to 4.2.16; MongoDB Server v4.4 versions prior to 4.4.9.</p>"}], "value": "An attacker with basic CRUD permissions on a replicated collection can run the applyOps command with specially malformed oplog entries, resulting in a potential denial of service on secondaries. This issue affects MongoDB Server v4.0 versions prior to 4.0.27; MongoDB Server v4.2 versions prior to 4.2.16; MongoDB Server v4.4 versions prior to 4.4.9.\n\n"}], "metrics": [{"cvssV3_1": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 6.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}]}], "problemTypes": [{"descriptions": [{"cweId": "CWE-20", "description": "CWE-20 Improper Input Validation", "lang": "en", "type": "CWE"}]}], "providerMetadata": {"orgId": "a39b4221-9bd0-4244-95fc-f3e2e07f1deb", "shortName": "mongodb", "dateUpdated": "2024-01-23T16:07:57.784Z"}, "references": [{"tags": ["x_refsource_MISC"], "url": "https://jira.mongodb.org/browse/SERVER-36263"}], "source": {"discovery": "INTERNAL"}, "title": "Specific replication command with malformed oplog entries can crash secondaries", "x_generator": {"engine": "Vulnogram 0.0.9"}, "x_legacyV4Record": {"CVE_data_meta": {"ASSIGNER": "cna@mongodb.com", "DATE_PUBLIC": "2021-12-15T16:00:00.000Z", "ID": "CVE-2021-20330", "STATE": "PUBLIC", "TITLE": "Specific replication command with malformed oplog entries can crash secondaries"}, "affects": {"vendor": {"vendor_data": [{"product": {"product_data": [{"product_name": "MongoDB Server", "version": {"version_data": [{"version_affected": "<", "version_name": "4.0", "version_value": "4.0.27"}, {"version_affected": "<", "version_name": "4.2", "version_value": "4.2.16"}, {"version_affected": "<", "version_name": "4.4", "version_value": "4.4.9"}]}}]}, "vendor_name": "MongoDB Inc."}]}}, "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": {"description_data": [{"lang": "eng", "value": "An attacker with basic CRUD permissions on a replicated collection can run the applyOps command with specially malformed oplog entries, resulting in a potential denial of service on secondaries. This issue affects MongoDB Server v4.0 versions prior to 4.0.25; MongoDB Server v4.2 versions prior to 4.2.14; MongoDB Server v4.4 versions prior to 4.4.6."}]}, "generator": {"engine": "Vulnogram 0.0.9"}, "impact": {"cvss": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 6.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}}, "problemtype": {"problemtype_data": [{"description": [{"lang": "eng", "value": "CWE-20 Improper Input Validation"}]}]}, "references": {"reference_data": [{"name": "https://jira.mongodb.org/browse/SERVER-36263", "refsource": "MISC", "url": "https://jira.mongodb.org/browse/SERVER-36263"}]}, "source": {"discovery": "INTERNAL"}}}}, "cveMetadata": {"assignerOrgId": "a39b4221-9bd0-4244-95fc-f3e2e07f1deb", "assignerShortName": "mongodb", "cveId": "CVE-2021-20330", "datePublished": "2021-12-15T00:00:00", "dateReserved": "2020-12-17T00:00:00", "dateUpdated": "2024-01-23T16:07:57.784Z", "state": "PUBLISHED"}, "dataType": "CVE_RECORD", "dataVersion": "5.0"}

{"configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:mongodb:mongodb:*:*:*:*:*:*:*:*", "matchCriteriaId": "50CB3881-049A-46F5-BBB4-21DCF2466D49", "versionEndExcluding": "4.0.25", "versionStartIncluding": "4.0.0", "vulnerable": true}, {"criteria": "cpe:2.3:a:mongodb:mongodb:*:*:*:*:*:*:*:*", "matchCriteriaId": "66EE5895-9252-49DE-810E-586E1AC484ED", "versionEndExcluding": "4.2.14", "versionStartIncluding": "4.2.0", "vulnerable": true}, {"criteria": "cpe:2.3:a:mongodb:mongodb:*:*:*:*:*:*:*:*", "matchCriteriaId": "177D5982-E1C3-42F0-B2E8-3345EB8C22F2", "versionEndExcluding": "4.4.6", "versionStartIncluding": "4.4.0", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "descriptions": [{"lang": "en", "value": "An attacker with basic CRUD permissions on a replicated collection can run the applyOps command with specially malformed oplog entries, resulting in a potential denial of service on secondaries. This issue affects MongoDB Server v4.0 versions prior to 4.0.27; MongoDB Server v4.2 versions prior to 4.2.16; MongoDB Server v4.4 versions prior to 4.4.9.\n\n"}, {"lang": "es", "value": "Un atacante con permisos CRUD b\u00e1sicos en una colecci\u00f3n replicada puede ejecutar el comando applyOps con entradas oplog especialmente malformadas, resultando en una potencial denegaci\u00f3n de servicio en los secundarios. Este problema afecta a las versiones de MongoDB Server v4.0 anteriores a 4.0.25; a las versiones de MongoDB Server v4.2 anteriores a 4.2.14; a las versiones de MongoDB Server v4.4 anteriores a 4.4.6"}], "id": "CVE-2021-20330", "lastModified": "2024-01-23T16:15:49.637", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "MEDIUM", "cvssData": {"accessComplexity": "LOW", "accessVector": "NETWORK", "authentication": "SINGLE", "availabilityImpact": "PARTIAL", "baseScore": 4.0, "confidentialityImpact": "NONE", "integrityImpact": "NONE", "vectorString": "AV:N/AC:L/Au:S/C:N/I:N/A:P", "version": "2.0"}, "exploitabilityScore": 8.0, "impactScore": 2.9, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false}], "cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 6.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}, {"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 6.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 3.6, "source": "cna@mongodb.com", "type": "Secondary"}]}, "published": "2021-12-15T13:15:07.633", "references": [{"source": "cna@mongodb.com", "tags": ["Issue Tracking", "Patch", "Vendor Advisory"], "url": "https://jira.mongodb.org/browse/SERVER-36263"}], "sourceIdentifier": "cna@mongodb.com", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-20"}], "source": "nvd@nist.gov", "type": "Primary"}, {"description": [{"lang": "en", "value": "CWE-20"}], "source": "cna@mongodb.com", "type": "Secondary"}]}

{}