CVE-2021-37617

{"cve": {"data_type": "CVE", "references": {"reference_data": [{"url": "https://github.com/nextcloud/desktop/pull/3497", "name": "https://github.com/nextcloud/desktop/pull/3497", "tags": ["Patch", "Third Party Advisory"], "refsource": "MISC"}, {"url": "https://hackerone.com/reports/1240749", "name": "https://hackerone.com/reports/1240749", "tags": ["Permissions Required", "Third Party Advisory"], "refsource": "MISC"}, {"url": "https://github.com/nextcloud/security-advisories/security/advisories/GHSA-6q2w-v879-q24v", "name": "https://github.com/nextcloud/security-advisories/security/advisories/GHSA-6q2w-v879-q24v", "tags": ["Third Party Advisory"], "refsource": "CONFIRM"}]}, "data_format": "MITRE", "description": {"description_data": [{"lang": "en", "value": "The Nextcloud Desktop Client is a tool to synchronize files from Nextcloud Server with a computer. The Nextcloud Desktop Client invokes its uninstaller script when being installed to make sure there are no remnants of previous installations. In versions 3.0.3 through 3.2.4, the Client searches the `Uninstall.exe` file in a folder that can be written by regular users. This could lead to a case where a malicious user creates a malicious `Uninstall.exe`, which would be executed with administrative privileges on the Nextcloud Desktop Client installation. This issue is fixed in Nextcloud Desktop Client version 3.3.0. As a workaround, do not allow untrusted users to create content in the `C:\\` system folder and verify that there is no malicious `C:\\Uninstall.exe` file on the system."}]}, "problemtype": {"problemtype_data": [{"description": [{"lang": "en", "value": "CWE-427"}]}]}, "data_version": "4.0", "CVE_data_meta": {"ID": "CVE-2021-37617", "ASSIGNER": "security-advisories@github.com"}}, "impact": {"baseMetricV2": {"cvssV2": {"version": "2.0", "baseScore": 4.4, "accessVector": "LOCAL", "vectorString": "AV:L/AC:M/Au:N/C:P/I:P/A:P", "authentication": "NONE", "integrityImpact": "PARTIAL", "accessComplexity": "MEDIUM", "availabilityImpact": "PARTIAL", "confidentialityImpact": "PARTIAL"}, "severity": "MEDIUM", "acInsufInfo": false, "impactScore": 6.4, "obtainAllPrivilege": false, "exploitabilityScore": 3.4, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": true}, "baseMetricV3": {"cvssV3": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.3, "attackVector": "LOCAL", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "REQUIRED", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH"}, "impactScore": 5.9, "exploitabilityScore": 1.3}}, "publishedDate": "2021-08-18T18:15Z", "configurations": {"nodes": [{"children": [], "operator": "OR", "cpe_match": [{"cpe23Uri": "cpe:2.3:a:nextcloud:desktop:*:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true, "versionEndExcluding": "3.3.0", "versionStartIncluding": "3.0.3"}]}], "CVE_data_version": "4.0"}, "lastModifiedDate": "2022-10-25T16:18Z"}