| |
Vulnerability CVE-2021-27241
Published: 2021-03-29
Description: |
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. |
Type:
CWE-59 (Improper Link Resolution Before File Access ('Link Following'))
CVSS2 => (AV:L/AC:L/Au:N/C:N/I:P/A:P)
CVSS Base Score |
Impact Subscore |
Exploitability Subscore |
3.6/10 |
4.9/10 |
3.9/10 |
Exploit range |
Attack complexity |
Authentication |
Local |
Low |
No required |
Confidentiality impact |
Integrity impact |
Availability impact |
None |
Partial |
Partial |
References: |
https://www.zerodayinitiative.com/advisories/ZDI-21-208/
|
|
|
closedb();
?>
Copyright 2024, cxsecurity.com
|
|
|