{"id":"CVE-2024-5102","state":"PUBLISHED","title":"Elevation of Privelage via symlinked file in Avast Antivirus","description":"A sym-linked file accessed via the repair function in Avast Antivirus <24.2 on Windows may allow user to elevate privilege to delete arbitrary files or run processes as NT AUTHORITY\\SYSTEM. The vulnerability exists within the \"Repair\" (settings -> troubleshooting -> repair) feature, which attempts to delete a file in the current user's AppData directory as NT AUTHORITY\\SYSTEM. A low-privileged user can make a pseudo-symlink and a junction folder and point to a file on the system. This can provide a low-privileged user an Elevation of Privilege to win a race-condition which will re-create the system files and make Windows callback to a specially-crafted file which could be used to launch a privileged shell instance.\n\nThis issue affects Avast Antivirus prior to 24.2.","publishedAt":"2024-06-10T16:15:56.581Z","updatedAt":"2024-08-01T21:03:10.574Z","severity":{"score":7.3,"label":"High","version":"4.0","vector":"CVSS:4.0/AV:L/AC:H/AT:P/PR:L/UI:A/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H","source":"NLOK"},"assigner":"NLOK","products":["Avast Antivirus"],"affected":[{"vendor":"Avast","product":"Antivirus","defaultStatus":"unaffected","versions":[{"version":"24.2","status":"affected","versionType":"custom"}],"platforms":["Windows"]}],"references":["https://support.norton.com/sp/static/external/tools/security-advisories.html"],"weaknesses":["CWE-1284"],"ingestedAt":"2026-10-29T20:08:12.933Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2024/5xxx/CVE-2024-5102.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.1","cveMetadata":{"cveId":"CVE-2024-5102","state":"PUBLISHED","datePublished":"2024-06-10T16:15:56.581Z","dateUpdated":"2024-08-01T21:03:10.574Z","assignerShortName":"NLOK","assignerOrgId":"dbd8429d-f261-4b1e-94cc-ae3132817e2e","dateReserved":"2024-05-18T20:11:06.500Z"},"containers":{"cna":{"title":"Elevation of Privelage via symlinked file in Avast Antivirus","descriptions":[{"lang":"en","value":"A sym-linked file accessed via the repair function in Avast Antivirus <24.2 on Windows may allow user to elevate privilege to delete arbitrary files or run processes as NT AUTHORITY\\SYSTEM. The vulnerability exists within the \"Repair\" (settings -> troubleshooting -> repair) feature, which attempts to delete a file in the current user's AppData directory as NT AUTHORITY\\SYSTEM. A low-privileged user can make a pseudo-symlink and a junction folder and point to a file on the system. This can provide a low-privileged user an Elevation of Privilege to win a race-condition which will re-create the system files and make Windows callback to a specially-crafted file which could be used to launch a privileged shell instance.\n\nThis issue affects Avast Antivirus prior to 24.2."}],"affected":[{"vendor":"Avast","product":"Antivirus","defaultStatus":"unaffected","versions":[{"version":"24.2","status":"affected","versionType":"custom"}],"platforms":["Windows"]}],"references":[{"url":"https://support.norton.com/sp/static/external/tools/security-advisories.html"}],"metrics":[{"cvssV4_0":{"Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","Safety":"NOT_DEFINED","attackComplexity":"HIGH","attackRequirements":"PRESENT","attackVector":"LOCAL","baseScore":7.3,"baseSeverity":"HIGH","privilegesRequired":"LOW","providerUrgency":"NOT_DEFINED","subAvailabilityImpact":"HIGH","subConfidentialityImpact":"HIGH","subIntegrityImpact":"HIGH","userInteraction":"ACTIVE","valueDensity":"NOT_DEFINED","vectorString":"CVSS:4.0/AV:L/AC:H/AT:P/PR:L/UI:A/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H","version":"4.0","vulnAvailabilityImpact":"HIGH","vulnConfidentialityImpact":"HIGH","vulnIntegrityImpact":"HIGH","vulnerabilityResponseEffort":"NOT_DEFINED"},"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}]}],"problemTypes":[{"descriptions":[{"cweId":"CWE-1284","description":"CWE-1284 Improper Validation of Specified Quantity in Input","lang":"en","type":"CWE"}]}],"providerMetadata":{"shortName":"NLOK","orgId":"dbd8429d-f261-4b1e-94cc-ae3132817e2e","dateUpdated":"2024-06-10T16:48:40.652Z"},"credits":[{"lang":"en","type":"finder","value":"Naor Hodorov"}],"datePublic":"2024-06-10T16:15:00.000Z","impacts":[{"capecId":"CAPEC-233","descriptions":[{"lang":"en","value":"CAPEC-233 Privilege Escalation"}]}],"source":{"discovery":"UNKNOWN"},"x_generator":{"engine":"Vulnogram 0.2.0"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2024-06-11T20:42:23.759818Z","id":"CVE-2024-5102","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2024-06-11T20:42:36.851Z"}},{"title":"CVE Program Container","references":[{"url":"https://support.norton.com/sp/static/external/tools/security-advisories.html","tags":["x_transferred"]}],"providerMetadata":{"shortName":"CVE","orgId":"af854a3a-2127-422b-91ae-364da2661108","dateUpdated":"2024-08-01T21:03:10.574Z"}}]}}}