CVE-2021-27241

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.
References
Link Resource
https://www.zerodayinitiative.com/advisories/ZDI-21-208/ Third Party Advisory VDB Entry
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Configurations

Configuration 1 (hide)

cpe:2.3:a:avast:premium_security:20.8.2429:*:*:*:*:*:*:*

Information

Published : 2021-03-29 14:15

Updated : 2021-04-01 09:04


NVD link : CVE-2021-27241

Mitre link : CVE-2021-27241


JSON object : View

CWE
CWE-59

Improper Link Resolution Before File Access ('Link Following')

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Products Affected

avast

  • premium_security