CVE-2021-29221

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{"affected": [{"affectedData": [{"product": "Erlang/OTP", "vendor": "Erlang Project", "versions": [{"status": "affected", "version": "< 23.2.3"}]}], "source": "security@deepsurface.com"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:erlang:erlang\\/otp:*:*:*:*:*:*:*:*", "matchCriteriaId": "795C26C5-EC7F-4216-BD92-657D2ECF5E19", "versionEndExcluding": "23.2.3", "vulnerable": true}], "negate": false, "operator": "OR"}, {"cpeMatch": [{"criteria": "cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:*", "matchCriteriaId": "A2572D17-1DE6-457B-99CC-64AFD54487EA", "vulnerable": false}], "negate": false, "operator": "OR"}], "operator": "AND"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "A local privilege escalation vulnerability was discovered in Erlang/OTP prior to version 23.2.3. By adding files to an existing installation's directory, a local attacker could hijack accounts of other users running Erlang programs or possibly coerce a service running with \"erlsrv.exe\" to execute arbitrary code as Local System. This can occur only under specific conditions on Windows with unsafe filesystem permissions."}, {"lang": "es", "value": "Se detect\u00f3 una vulnerabilidad de escalada de privilegios local en Erlang/OTP anterior a versi\u00f3n 23.2.3.&#xa0;Al agregar archivos a un directorio de instalaci\u00f3n existente, un atacante local podr\u00eda secuestrar cuentas de otros usuarios que ejecutan programas Erlang o posiblemente coaccionar un servicio que se ejecuta con \"erlsrv.exe\" para ejecutar c\u00f3digo arbitrario como Local System.&#xa0;Esto puede ocurrir solo bajo condiciones espec\u00edficas en Windows con permisos de sistema de archivos no seguros"}], "id": "CVE-2021-29221", "lastModified": "2026-06-17T03:47:25.507", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "MEDIUM", "cvssData": {"accessComplexity": "HIGH", "accessVector": "LOCAL", "authentication": "NONE", "availabilityImpact": "COMPLETE", "baseScore": 6.2, "confidentialityImpact": "COMPLETE", "integrityImpact": "COMPLETE", "vectorString": "AV:L/AC:H/Au:N/C:C/I:C/A:C", "version": "2.0"}, "exploitabilityScore": 1.9, "impactScore": 10.0, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": true}], "cvssMetricV31": [{"cvssData": {"attackComplexity": "HIGH", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 7.0, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 1.0, "impactScore": 5.9, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2021-04-09T14:15:12.910", "references": [{"source": "security@deepsurface.com", "tags": ["Exploit", "Third Party Advisory"], "url": "https://deepsurface.com/deepsurface-security-advisory-local-privilege-escalation-in-erlang-on-windows-cve-2021-29221/"}, {"source": "security@deepsurface.com", "tags": ["Third Party Advisory"], "url": "https://github.com/erlang/otp/releases/tag/OTP-23.2.3"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Exploit", "Third Party Advisory"], "url": "https://deepsurface.com/deepsurface-security-advisory-local-privilege-escalation-in-erlang-on-windows-cve-2021-29221/"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory"], "url": "https://github.com/erlang/otp/releases/tag/OTP-23.2.3"}], "sourceIdentifier": "security@deepsurface.com", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-426"}], "source": "nvd@nist.gov", "type": "Primary"}]}

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