#VU26543 Improper access control in Avast Antivirus - CVE-2020-10866
Published: April 2, 2020
Vulnerability identifier: #VU26543
Vulnerability risk: High
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Amber
CVE-ID: CVE-2020-10866
CWE-ID: CWE-284
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerable software:
Avast Antivirus
Avast Antivirus
Software vendor:
Avast Software s.r.o.
Avast Software s.r.o.
Description
The vulnerability allows a remote attacker to gain unauthorized access to otherwise restricted functionality.
The vulnerability exists due to improper access restrictions in the aswTask RPC endpoint for the TaskEx library in the Avast Service (AvastSvc.exe). A remote attacker can bypass implemented security restrictions and enumerate the network interfaces and access points from a Low Integrity process via RPC.
Remediation
Install updates from vendor's website.