{ "CVE_data_meta": { "ASSIGNER": "security-advisories@github.com", "ID": "CVE-2020-15145", "STATE": "PUBLIC", "TITLE": "Local privilege elevation in Composer-Setup for Windows" }, "affects": { "vendor": { "vendor_data": [ { "product": { "product_data": [ { "product_name": "windows-setup", "version": { "version_data": [ { "version_value": "< 6.0.0" } ] } } ] }, "vendor_name": "composer" } ] } }, "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": { "description_data": [ { "lang": "eng", "value": "In Composer-Setup for Windows before version 6.0.0, if the developer's computer is shared with other users, a local attacker may be able to exploit the following scenarios. 1. A local regular user may modify the existing `C:\\ProgramData\\ComposerSetup\\bin\\composer.bat` in order to get elevated command execution when composer is run by an administrator. 2. A local regular user may create a specially crafted dll in the `C:\\ProgramData\\ComposerSetup\\bin` folder in order to get Local System privileges. See: https://itm4n.github.io/windows-server-netman-dll-hijacking. 3. If the directory of the php.exe selected by the user is not in the system path, it is added without checking that it is admin secured, as per Microsoft guidelines. See: https://msrc-blog.microsoft.com/2018/04/04/triaging-a-dll-planting-vulnerability." } ] }, "impact": { "cvss": { "attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "NONE", "baseScore": 6.7, "baseSeverity": "MEDIUM", "confidentialityImpact": "LOW", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "CHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:C/C:L/I:H/A:N", "version": "3.1" } }, "problemtype": { "problemtype_data": [ { "description": [ { "lang": "eng", "value": "CWE-276: Incorrect Default Permissions" } ] } ] }, "references": { "reference_data": [ { "name": "https://github.com/composer/windows-setup/security/advisories/GHSA-wgrx-r3qv-332c", "refsource": "CONFIRM", "url": "https://github.com/composer/windows-setup/security/advisories/GHSA-wgrx-r3qv-332c" }, { "name": "https://github.com/composer/windows-setup/commit/ca9f1435d368e3377e82d60ef0c7b795afa9f804", "refsource": "MISC", "url": "https://github.com/composer/windows-setup/commit/ca9f1435d368e3377e82d60ef0c7b795afa9f804" } ] }, "source": { "advisory": "GHSA-wgrx-r3qv-332c", "discovery": "UNKNOWN" } }