{"dataType": "CVE_RECORD", "dataVersion": "5.0", "cveMetadata": {"cveId": "CVE-2023-40703", "assignerOrgId": "9302f53e-dde5-4bf3-b2f2-a83f91ac0eee", "state": "PUBLISHED", "assignerShortName": "Mattermost", "dateReserved": "2023-11-22T11:18:57.610Z", "datePublished": "2023-11-27T09:08:31.251Z", "dateUpdated": "2023-11-27T09:08:31.251Z"}, "containers": {"cna": {"affected": [{"defaultStatus": "unaffected", "product": "Mattermost", "vendor": "Mattermost", "versions": [{"lessThanOrEqual": "7.8.12", "status": "affected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "8.1.3", "status": "affected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "9.0.1", "status": "affected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "9.1.0", "status": "affected", "version": "0", "versionType": "semver"}, {"status": "unaffected", "version": "9.1.1"}, {"status": "unaffected", "version": "9.0.2"}, {"status": "unaffected", "version": "7.8.13"}, {"status": "unaffected", "version": "8.1.4"}]}], "credits": [{"lang": "en", "type": "finder", "user": "00000000-0000-4000-9000-000000000000", "value": "vultza (vultza)"}], "descriptions": [{"lang": "en", "supportingMedia": [{"base64": false, "type": "text/html", "value": "<p>Mattermost fails to properly limit the characters allowed in different fields of a block in Mattermost Boards allowing&nbsp;a attacker to&nbsp;<span style=\"background-color: rgb(255, 255, 255);\">consume excessive resources, possibly leading to Denial of Service, by</span>&nbsp;patching the field of a block using a specially crafted string.&nbsp;</p>"}], "value": "Mattermost fails to properly limit the characters allowed in different fields of a block in Mattermost Boards allowing\u00a0a attacker to\u00a0consume excessive resources, possibly leading to Denial of Service, by\u00a0patching the field of a block using a specially crafted string.\u00a0\n\n"}], "metrics": [{"cvssV3_1": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "LOW", "baseScore": 4.3, "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:L", "version": "3.1"}, "format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}]}], "problemTypes": [{"descriptions": [{"cweId": "CWE-400", "description": "CWE-400: Uncontrolled Resource Consumption", "lang": "en", "type": "CWE"}]}], "providerMetadata": {"orgId": "9302f53e-dde5-4bf3-b2f2-a83f91ac0eee", "shortName": "Mattermost", "dateUpdated": "2023-11-27T09:08:31.251Z"}, "references": [{"url": "https://mattermost.com/security-updates"}], "solutions": [{"lang": "en", "supportingMedia": [{"base64": false, "type": "text/html", "value": "<p>Update Mattermost Server to versions 9.1.1, 9.0.2, 7.8.13, 8.1.4 or higher.</p>"}], "value": "Update Mattermost Server to versions 9.1.1, 9.0.2, 7.8.13, 8.1.4 or higher.\n\n"}], "source": {"advisory": "MMSA-2023-00219", "defect": ["https://mattermost.atlassian.net/browse/MM-53233"], "discovery": "EXTERNAL"}, "title": "Denial of Service via specially crafted block fields in Mattermost Boards", "x_generator": {"engine": "Vulnogram 0.1.0-dev"}}}}

{"configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:mattermost:mattermost:*:*:*:*:*:*:*:*", "matchCriteriaId": "BAEFCB9C-4CFC-4C2D-B53D-4A1E9B54E744", "versionEndIncluding": "7.8.12", "vulnerable": true}, {"criteria": "cpe:2.3:a:mattermost:mattermost:*:*:*:*:*:*:*:*", "matchCriteriaId": "7CFE72E8-D2A6-4994-88F6-2B04DB413631", "versionEndIncluding": "8.1.3", "versionStartIncluding": "8.0.0", "vulnerable": true}, {"criteria": "cpe:2.3:a:mattermost:mattermost:*:*:*:*:*:*:*:*", "matchCriteriaId": "DF5E1B7D-7237-4464-9873-0A85C80CC76A", "versionEndIncluding": "9.0.1", "versionStartIncluding": "9.0.0", "vulnerable": true}, {"criteria": "cpe:2.3:a:mattermost:mattermost:9.1.0:*:*:*:*:*:*:*", "matchCriteriaId": "9D960BDC-FB30-4112-B1CC-219D1EC32145", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "descriptions": [{"lang": "en", "value": "Mattermost fails to properly limit the characters allowed in different fields of a block in Mattermost Boards allowing\u00a0a attacker to\u00a0consume excessive resources, possibly leading to Denial of Service, by\u00a0patching the field of a block using a specially crafted string.\u00a0\n\n"}, {"lang": "es", "value": "Mattermost no logra limitar adecuadamente los caracteres permitidos en diferentes campos de un bloque en Mattermost Boards, lo que permite a un atacante consumir recursos excesivos, lo que posiblemente lleve a una Denegaci\u00f3n de Servicio, al parchear el campo de un bloque usando una cadena especialmente manipulada."}], "id": "CVE-2023-40703", "lastModified": "2023-12-01T19:13:28.487", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}, {"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "LOW", "baseScore": 4.3, "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:L", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 1.4, "source": "responsibledisclosure@mattermost.com", "type": "Secondary"}]}, "published": "2023-11-27T10:15:07.460", "references": [{"source": "responsibledisclosure@mattermost.com", "tags": ["Vendor Advisory"], "url": "https://mattermost.com/security-updates"}], "sourceIdentifier": "responsibledisclosure@mattermost.com", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-400"}], "source": "nvd@nist.gov", "type": "Primary"}, {"description": [{"lang": "en", "value": "CWE-400"}], "source": "responsibledisclosure@mattermost.com", "type": "Secondary"}]}

{}