{ "containers": { "cna": { "affected": [ { "product": "security-advisories", "vendor": "nextcloud", "versions": [ { "status": "affected", "version": ">= 3.0.3 , <= 3.2.4" } ] } ], "descriptions": [ { "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." } ], "metrics": [ { "cvssV3_1": { "attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 7.3, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H", "version": "3.1" } } ], "problemTypes": [ { "descriptions": [ { "cweId": "CWE-426", "description": "CWE-426: Untrusted Search Path", "lang": "en", "type": "CWE" } ] } ], "providerMetadata": { "dateUpdated": "2021-08-18T17:25:10.000Z", "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M" }, "references": [ { "tags": [ "x_refsource_CONFIRM" ], "url": "https://github.com/nextcloud/security-advisories/security/advisories/GHSA-6q2w-v879-q24v" }, { "tags": [ "x_refsource_MISC" ], "url": "https://github.com/nextcloud/desktop/pull/3497" }, { "tags": [ "x_refsource_MISC" ], "url": "https://hackerone.com/reports/1240749" } ], "source": { "advisory": "GHSA-6q2w-v879-q24v", "discovery": "UNKNOWN" }, "title": "Untrusted Search Path in Nextcloud Desktop Client", "x_legacyV4Record": { "CVE_data_meta": { "ASSIGNER": "security-advisories@github.com", "ID": "CVE-2021-37617", "STATE": "PUBLIC", "TITLE": "Untrusted Search Path in Nextcloud Desktop Client" }, "affects": { "vendor": { "vendor_data": [ { "product": { "product_data": [ { "product_name": "security-advisories", "version": { "version_data": [ { "version_value": ">= 3.0.3 , <= 3.2.4" } ] } } ] }, "vendor_name": "nextcloud" } ] } }, "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": { "description_data": [ { "lang": "eng", "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." } ] }, "impact": { "cvss": { "attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 7.3, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H", "version": "3.1" } }, "problemtype": { "problemtype_data": [ { "description": [ { "lang": "eng", "value": "CWE-426: Untrusted Search Path" } ] } ] }, "references": { "reference_data": [ { "name": "https://github.com/nextcloud/security-advisories/security/advisories/GHSA-6q2w-v879-q24v", "refsource": "CONFIRM", "url": "https://github.com/nextcloud/security-advisories/security/advisories/GHSA-6q2w-v879-q24v" }, { "name": "https://github.com/nextcloud/desktop/pull/3497", "refsource": "MISC", "url": "https://github.com/nextcloud/desktop/pull/3497" }, { "name": "https://hackerone.com/reports/1240749", "refsource": "MISC", "url": "https://hackerone.com/reports/1240749" } ] }, "source": { "advisory": "GHSA-6q2w-v879-q24v", "discovery": "UNKNOWN" } } }, "adp": [ { "providerMetadata": { "orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-04T01:23:01.309Z" }, "title": "CVE Program Container", "references": [ { "tags": [ "x_refsource_CONFIRM", "x_transferred" ], "url": "https://github.com/nextcloud/security-advisories/security/advisories/GHSA-6q2w-v879-q24v" }, { "tags": [ "x_refsource_MISC", "x_transferred" ], "url": "https://github.com/nextcloud/desktop/pull/3497" }, { "tags": [ "x_refsource_MISC", "x_transferred" ], "url": "https://hackerone.com/reports/1240749" } ] } ] }, "cveMetadata": { "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "assignerShortName": "GitHub_M", "cveId": "CVE-2021-37617", "datePublished": "2021-08-18T17:25:10.000Z", "dateReserved": "2021-07-29T00:00:00.000Z", "dateUpdated": "2024-08-04T01:23:01.309Z", "state": "PUBLISHED" }, "dataType": "CVE_RECORD", "dataVersion": "5.1" }