CVE-2021-39180

{"containers": {"cna": {"affected": [{"product": "OpenOLAT", "vendor": "OpenOLAT", "versions": [{"status": "affected", "version": "< 15.3.18"}, {"status": "affected", "version": ">= 15.4.0, < 15.5.3"}]}], "descriptions": [{"lang": "en", "value": "OpenOLAT is a web-based learning management system (LMS). A path traversal vulnerability exists in versions prior to 15.3.18, 15.5.3, and 16.0.0. Using a specially prepared ZIP file, it is possible to overwrite any file that is writable by the application server user (e.g. the tomcat user). Depending on the configuration this can be limited to files of the OpenOlat user data directory, however, if not properly set up, the attack could also be used to overwrite application server config files, java code or even operating system files. The attack could be used to corrupt or modify any OpenOlat file such as course structures, config files or temporary test data. Those attack would require in-depth knowledge of the installation and thus more theoretical. If the app server configuration allows the execution of jsp files and the path to the context is known, it is also possible to execute java code. If the app server runs with the same user that is used to deploy the OpenOlat code or has write permissions on the OpenOlat code files and the path to the context is know, code injection is possible. The attack requires an OpenOlat user account to upload a ZIP file and trigger the unzip method. It can not be exploited by unregistered users. The problem is fixed in versions 15.3.18, 15.5.3 and 16.0.0. There are no known workarounds aside from upgrading."}], "metrics": [{"cvssV3_1": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 8.1, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H", "version": "3.1"}}], "problemTypes": [{"descriptions": [{"cweId": "CWE-22", "description": "CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')", "lang": "en", "type": "CWE"}]}], "providerMetadata": {"dateUpdated": "2021-08-31T17:55:14.000Z", "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M"}, "references": [{"tags": ["x_refsource_CONFIRM"], "url": "https://github.com/OpenOLAT/OpenOLAT/security/advisories/GHSA-x95v-2pgj-9x8j"}, {"tags": ["x_refsource_MISC"], "url": "https://github.com/OpenOLAT/OpenOLAT/commit/2cf73c972e23ccd69cc1e103e43c2c8253571d3e"}, {"tags": ["x_refsource_MISC"], "url": "https://github.com/OpenOLAT/OpenOLAT/commit/5668a41ab3f1753102a89757be013487544279d5"}, {"tags": ["x_refsource_MISC"], "url": "https://github.com/OpenOLAT/OpenOLAT/commit/699490be8e931af0ef1f135c55384db1f4232637"}, {"tags": ["x_refsource_MISC"], "url": "https://jira.openolat.org/browse/OO-5549"}], "source": {"advisory": "GHSA-x95v-2pgj-9x8j", "discovery": "UNKNOWN"}, "title": "Path Traversal in Archive Handling Leading to Code Execution", "x_legacyV4Record": {"CVE_data_meta": {"ASSIGNER": "security-advisories@github.com", "ID": "CVE-2021-39180", "STATE": "PUBLIC", "TITLE": "Path Traversal in Archive Handling Leading to Code Execution"}, "affects": {"vendor": {"vendor_data": [{"product": {"product_data": [{"product_name": "OpenOLAT", "version": {"version_data": [{"version_value": "< 15.3.18"}, {"version_value": ">= 15.4.0, < 15.5.3"}]}}]}, "vendor_name": "OpenOLAT"}]}}, "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": {"description_data": [{"lang": "eng", "value": "OpenOLAT is a web-based learning management system (LMS). A path traversal vulnerability exists in versions prior to 15.3.18, 15.5.3, and 16.0.0. Using a specially prepared ZIP file, it is possible to overwrite any file that is writable by the application server user (e.g. the tomcat user). Depending on the configuration this can be limited to files of the OpenOlat user data directory, however, if not properly set up, the attack could also be used to overwrite application server config files, java code or even operating system files. The attack could be used to corrupt or modify any OpenOlat file such as course structures, config files or temporary test data. Those attack would require in-depth knowledge of the installation and thus more theoretical. If the app server configuration allows the execution of jsp files and the path to the context is known, it is also possible to execute java code. If the app server runs with the same user that is used to deploy the OpenOlat code or has write permissions on the OpenOlat code files and the path to the context is know, code injection is possible. The attack requires an OpenOlat user account to upload a ZIP file and trigger the unzip method. It can not be exploited by unregistered users. The problem is fixed in versions 15.3.18, 15.5.3 and 16.0.0. There are no known workarounds aside from upgrading."}]}, "impact": {"cvss": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 8.1, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H", "version": "3.1"}}, "problemtype": {"problemtype_data": [{"description": [{"lang": "eng", "value": "CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')"}]}]}, "references": {"reference_data": [{"name": "https://github.com/OpenOLAT/OpenOLAT/security/advisories/GHSA-x95v-2pgj-9x8j", "refsource": "CONFIRM", "url": "https://github.com/OpenOLAT/OpenOLAT/security/advisories/GHSA-x95v-2pgj-9x8j"}, {"name": "https://github.com/OpenOLAT/OpenOLAT/commit/2cf73c972e23ccd69cc1e103e43c2c8253571d3e", "refsource": "MISC", "url": "https://github.com/OpenOLAT/OpenOLAT/commit/2cf73c972e23ccd69cc1e103e43c2c8253571d3e"}, {"name": "https://github.com/OpenOLAT/OpenOLAT/commit/5668a41ab3f1753102a89757be013487544279d5", "refsource": "MISC", "url": "https://github.com/OpenOLAT/OpenOLAT/commit/5668a41ab3f1753102a89757be013487544279d5"}, {"name": "https://github.com/OpenOLAT/OpenOLAT/commit/699490be8e931af0ef1f135c55384db1f4232637", "refsource": "MISC", "url": "https://github.com/OpenOLAT/OpenOLAT/commit/699490be8e931af0ef1f135c55384db1f4232637"}, {"name": "https://jira.openolat.org/browse/OO-5549", "refsource": "MISC", "url": "https://jira.openolat.org/browse/OO-5549"}]}, "source": {"advisory": "GHSA-x95v-2pgj-9x8j", "discovery": "UNKNOWN"}}}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-04T01:58:18.226Z"}, "title": "CVE Program Container", "references": [{"tags": ["x_refsource_CONFIRM", "x_transferred"], "url": "https://github.com/OpenOLAT/OpenOLAT/security/advisories/GHSA-x95v-2pgj-9x8j"}, {"tags": ["x_refsource_MISC", "x_transferred"], "url": "https://github.com/OpenOLAT/OpenOLAT/commit/2cf73c972e23ccd69cc1e103e43c2c8253571d3e"}, {"tags": ["x_refsource_MISC", "x_transferred"], "url": "https://github.com/OpenOLAT/OpenOLAT/commit/5668a41ab3f1753102a89757be013487544279d5"}, {"tags": ["x_refsource_MISC", "x_transferred"], "url": "https://github.com/OpenOLAT/OpenOLAT/commit/699490be8e931af0ef1f135c55384db1f4232637"}, {"tags": ["x_refsource_MISC", "x_transferred"], "url": "https://jira.openolat.org/browse/OO-5549"}]}]}, "cveMetadata": {"assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "assignerShortName": "GitHub_M", "cveId": "CVE-2021-39180", "datePublished": "2021-08-31T17:55:14.000Z", "dateReserved": "2021-08-16T00:00:00.000Z", "dateUpdated": "2024-08-04T01:58:18.226Z", "state": "PUBLISHED"}, "dataType": "CVE_RECORD", "dataVersion": "5.1"}

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{"affected": [{"affectedData": [{"product": "OpenOLAT", "vendor": "OpenOLAT", "versions": [{"status": "affected", "version": "< 15.3.18"}, {"status": "affected", "version": ">= 15.4.0, < 15.5.3"}]}], "source": "security-advisories@github.com"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:frentix:openolat:*:*:*:*:*:*:*:*", "matchCriteriaId": "D18C8612-B20D-48F2-9C01-E85A5E518CD7", "versionEndExcluding": "15.3.18", "vulnerable": true}, {"criteria": "cpe:2.3:a:frentix:openolat:*:*:*:*:*:*:*:*", "matchCriteriaId": "B834F604-DE9F-47C3-86E8-A1AFDEF2E2F5", "versionEndExcluding": "15.5.3", "versionStartIncluding": "15.4.0", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "OpenOLAT is a web-based learning management system (LMS). A path traversal vulnerability exists in versions prior to 15.3.18, 15.5.3, and 16.0.0. Using a specially prepared ZIP file, it is possible to overwrite any file that is writable by the application server user (e.g. the tomcat user). Depending on the configuration this can be limited to files of the OpenOlat user data directory, however, if not properly set up, the attack could also be used to overwrite application server config files, java code or even operating system files. The attack could be used to corrupt or modify any OpenOlat file such as course structures, config files or temporary test data. Those attack would require in-depth knowledge of the installation and thus more theoretical. If the app server configuration allows the execution of jsp files and the path to the context is known, it is also possible to execute java code. If the app server runs with the same user that is used to deploy the OpenOlat code or has write permissions on the OpenOlat code files and the path to the context is know, code injection is possible. The attack requires an OpenOlat user account to upload a ZIP file and trigger the unzip method. It can not be exploited by unregistered users. The problem is fixed in versions 15.3.18, 15.5.3 and 16.0.0. There are no known workarounds aside from upgrading."}, {"lang": "es", "value": "OpenOLAT es un sistema de administraci\u00f3n de aprendizaje basado en la web (LMS). Se presenta una vulnerabilidad de salto de ruta en las versiones anteriores a 15.3.18, 15.5.3 y 16.0.0. Al usar un archivo ZIP especialmente preparado, es posible sobrescribir cualquier archivo que sea escribible por el usuario del servidor de aplicaciones (por ejemplo, el usuario tomcat). Dependiendo de la configuraci\u00f3n, esto puede ser limitado a archivos del directorio de datos del usuario de OpenOlat, sin embargo, si no se configura apropiadamente, el ataque tambi\u00e9n podr\u00eda ser usado para sobrescribir los archivos de configuraci\u00f3n del servidor de aplicaciones, el c\u00f3digo java o incluso los archivos del sistema operativo. El ataque podr\u00eda ser usado para corromper o modificar cualquier archivo de OpenOlat, como las estructuras de los cursos, los archivos de configuraci\u00f3n o los datos temporales de las pruebas. Estos ataques requerir\u00edan un conocimiento profundo de la instalaci\u00f3n y por lo tanto m\u00e1s te\u00f3rico. Si la configuraci\u00f3n del servidor de aplicaciones permite la ejecuci\u00f3n de archivos jsp y se conoce la ruta del contexto, tambi\u00e9n es posible ejecutar c\u00f3digo java. Si el servidor de aplicaciones se ejecuta con el mismo usuario que es usado para desplegar el c\u00f3digo OpenOlat o presenta permisos de escritura en los archivos de c\u00f3digo OpenOlat y se conoce la ruta al contexto, es posible una inyecci\u00f3n de c\u00f3digo. El ataque requiere que una cuenta de usuario de OpenOlat cargue un archivo ZIP y desencadene el m\u00e9todo de descompresi\u00f3n. No puede ser explotado por usuarios no registrados. El problema est\u00e1 corregido en versiones 15.3.18, 15.5.3 y 16.0.0. No se conocen soluciones aparte de la actualizaci\u00f3n"}], "id": "CVE-2021-39180", "lastModified": "2026-06-17T04:03:15.633", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "HIGH", "cvssData": {"accessComplexity": "LOW", "accessVector": "NETWORK", "authentication": "SINGLE", "availabilityImpact": "COMPLETE", "baseScore": 9.0, "confidentialityImpact": "COMPLETE", "integrityImpact": "COMPLETE", "vectorString": "AV:N/AC:L/Au:S/C:C/I:C/A:C", "version": "2.0"}, "exploitabilityScore": 8.0, "impactScore": 10.0, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false}], "cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 8.1, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 5.2, "source": "security-advisories@github.com", "type": "Secondary"}, {"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 8.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 5.9, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2021-08-31T18:15:08.550", "references": [{"source": "security-advisories@github.com", "tags": ["Patch", "Third Party Advisory"], "url": "https://github.com/OpenOLAT/OpenOLAT/commit/2cf73c972e23ccd69cc1e103e43c2c8253571d3e"}, {"source": "security-advisories@github.com", "tags": ["Patch", "Third Party Advisory"], "url": "https://github.com/OpenOLAT/OpenOLAT/commit/5668a41ab3f1753102a89757be013487544279d5"}, {"source": "security-advisories@github.com", "tags": ["Patch", "Third Party Advisory"], "url": "https://github.com/OpenOLAT/OpenOLAT/commit/699490be8e931af0ef1f135c55384db1f4232637"}, {"source": "security-advisories@github.com", "tags": ["Third Party Advisory"], "url": "https://github.com/OpenOLAT/OpenOLAT/security/advisories/GHSA-x95v-2pgj-9x8j"}, {"source": "security-advisories@github.com", "tags": ["Permissions Required", "Vendor Advisory"], "url": "https://jira.openolat.org/browse/OO-5549"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch", "Third Party Advisory"], "url": "https://github.com/OpenOLAT/OpenOLAT/commit/2cf73c972e23ccd69cc1e103e43c2c8253571d3e"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch", "Third Party Advisory"], "url": "https://github.com/OpenOLAT/OpenOLAT/commit/5668a41ab3f1753102a89757be013487544279d5"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch", "Third Party Advisory"], "url": "https://github.com/OpenOLAT/OpenOLAT/commit/699490be8e931af0ef1f135c55384db1f4232637"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory"], "url": "https://github.com/OpenOLAT/OpenOLAT/security/advisories/GHSA-x95v-2pgj-9x8j"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Permissions Required", "Vendor Advisory"], "url": "https://jira.openolat.org/browse/OO-5549"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-22"}], "source": "security-advisories@github.com", "type": "Secondary"}, {"description": [{"lang": "en", "value": "CWE-22"}], "source": "nvd@nist.gov", "type": "Primary"}]}

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