{"containers":{"cna":{"affected":[{"product":"Premium Security","vendor":"Avast","versions":[{"status":"affected","version":"20.8.2429 (Build 20.8.5653.561)"}]}],"credits":[{"lang":"en","value":"Abdelhamid Naceri"}],"descriptions":[{"lang":"en","value":"This vulnerability allows local attackers to delete arbitrary directories on affected installations of Avast Premium Security 20.8.2429 (Build 20.8.5653.561). An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability. The specific flaw exists within the AvastSvc.exe module. By creating a directory junction, an attacker can abuse the service to delete a directory. An attacker can leverage this vulnerability to create a denial-of-service condition on the system. Was ZDI-CAN-12082."}],"metrics":[{"cvssV3_0":{"attackComplexity":"LOW","attackVector":"LOCAL","availabilityImpact":"HIGH","baseScore":6.1,"baseSeverity":"MEDIUM","confidentialityImpact":"NONE","integrityImpact":"LOW","privilegesRequired":"LOW","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:H","version":"3.0"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-59","description":"CWE-59: Improper Link Resolution Before File Access ('Link Following')","lang":"en","type":"CWE"}]}],"providerMetadata":{"dateUpdated":"2021-03-29T21:05:30.000Z","orgId":"99f1926a-a320-47d8-bbb5-42feb611262e","shortName":"zdi"},"references":[{"tags":["x_refsource_MISC"],"url":"https://www.zerodayinitiative.com/advisories/ZDI-21-208/"}],"x_legacyV4Record":{"CVE_data_meta":{"ASSIGNER":"zdi-disclosures@trendmicro.com","ID":"CVE-2021-27241","STATE":"PUBLIC"},"affects":{"vendor":{"vendor_data":[{"product":{"product_data":[{"product_name":"Premium Security","version":{"version_data":[{"version_value":"20.8.2429 (Build 20.8.5653.561)"}]}}]},"vendor_name":"Avast"}]}},"credit":"Abdelhamid Naceri","data_format":"MITRE","data_type":"CVE","data_version":"4.0","description":{"description_data":[{"lang":"eng","value":"This vulnerability allows local attackers to delete arbitrary directories on affected installations of Avast Premium Security 20.8.2429 (Build 20.8.5653.561). An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability. The specific flaw exists within the AvastSvc.exe module. By creating a directory junction, an attacker can abuse the service to delete a directory. An attacker can leverage this vulnerability to create a denial-of-service condition on the system. Was ZDI-CAN-12082."}]},"impact":{"cvss":{"vectorString":"CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:H","version":"3.0"}},"problemtype":{"problemtype_data":[{"description":[{"lang":"eng","value":"CWE-59: Improper Link Resolution Before File Access ('Link Following')"}]}]},"references":{"reference_data":[{"name":"https://www.zerodayinitiative.com/advisories/ZDI-21-208/","refsource":"MISC","url":"https://www.zerodayinitiative.com/advisories/ZDI-21-208/"}]}}},"adp":[{"providerMetadata":{"orgId":"af854a3a-2127-422b-91ae-364da2661108","shortName":"CVE","dateUpdated":"2024-08-03T20:48:15.888Z"},"title":"CVE Program Container","references":[{"tags":["x_refsource_MISC","x_transferred"],"url":"https://www.zerodayinitiative.com/advisories/ZDI-21-208/"}]}]},"cveMetadata":{"assignerOrgId":"99f1926a-a320-47d8-bbb5-42feb611262e","assignerShortName":"zdi","cveId":"CVE-2021-27241","datePublished":"2021-03-29T21:05:31.000Z","dateReserved":"2021-02-16T00:00:00.000Z","dateUpdated":"2024-08-03T20:48:15.888Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.1"}