CVE-2023-42804

{"id": "CVE-2023-42804", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 5.3, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "NONE", "confidentialityImpact": "LOW"}, "impactScore": 1.4, "exploitabilityScore": 3.9}, {"type": "Secondary", "source": "security-advisories@github.com", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 3.1, "attackVector": "NETWORK", "baseSeverity": "LOW", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "HIGH", "availabilityImpact": "NONE", "privilegesRequired": "LOW", "confidentialityImpact": "LOW"}, "impactScore": 1.4, "exploitabilityScore": 1.6}]}, "published": "2023-10-30T19:15:08.037", "references": [{"url": "https://github.com/bigbluebutton/bigbluebutton/pull/15960", "tags": ["Third Party Advisory"], "source": "security-advisories@github.com"}, {"url": "https://github.com/bigbluebutton/bigbluebutton/security/advisories/GHSA-3qjg-229m-vq84", "tags": ["Third Party Advisory"], "source": "security-advisories@github.com"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "security-advisories@github.com", "description": [{"lang": "en", "value": "CWE-22"}]}], "descriptions": [{"lang": "en", "value": "BigBlueButton is an open-source virtual classroom. BigBlueButton prior to version 2.6.0-beta.1 has a path traversal vulnerability that allows an attacker with a valid starting folder path, to traverse and read other files without authentication, assuming the files have certain extensions (txt, swf, svg, png). In version 2.6.0-beta.1, input validation was added on the parameters being passed and dangerous characters are stripped. There are no known workarounds."}, {"lang": "es", "value": "BigBlueButton es un aula virtual de c\u00f3digo abierto. BigBlueButton anterior a la versi\u00f3n 2.6.0-beta.1 tiene una vulnerabilidad de path traversal que permite a un atacante con una ruta de carpeta de inicio v\u00e1lida atravesar y leer otros archivos sin autenticaci\u00f3n, asumiendo que los archivos tienen ciertas extensiones (txt, swf, svg, png). En la versi\u00f3n 2.6.0-beta.1, se agreg\u00f3 validaci\u00f3n de entrada en los par\u00e1metros que se pasan y se eliminan los caracteres peligrosos. No se conocen workarounds."}], "lastModified": "2023-11-07T23:17:42.680", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:bigbluebutton:bigbluebutton:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "5F3F6566-B94F-4CBC-B1BA-DACA51865D76", "versionEndIncluding": "2.5.18"}, {"criteria": "cpe:2.3:a:bigbluebutton:bigbluebutton:2.6.0:alpha1:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "83C1F894-31BC-4C2D-AD62-837D990257CF"}, {"criteria": "cpe:2.3:a:bigbluebutton:bigbluebutton:2.6.0:alpha2:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "84EE596E-A3F6-4B29-B51D-CAE19A74D5E3"}, {"criteria": "cpe:2.3:a:bigbluebutton:bigbluebutton:2.6.0:alpha3:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "A8DD6CB9-0B7E-4C4E-BDC6-D8FD1B85882D"}, {"criteria": "cpe:2.3:a:bigbluebutton:bigbluebutton:2.6.0:alpha4:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "1BA4033B-60B8-4674-98CA-F5794B905362"}], "operator": "OR"}]}], "sourceIdentifier": "security-advisories@github.com"}