CVE-2019-11230

Published: Jul 18, 2019Modified: Nov 21, 2024

4.4

Vector

CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:N

Exploitability: 0.8 / Impact: 3.6

Source: NVD

Description

In Avast Antivirus before 19.4, a local administrator can trick the product into renaming arbitrary files by replacing the Logs\Update.log file with a symlink. The next time the product attempts to write to the log file, the target of the symlink is renamed. This defect can be exploited to rename a critical product file (e.g., AvastSvc.exe), causing the product to fail to start on the next system restart.

Affected (1)

Products: Avast: Antivirus

1 product

Configuration A

1 vulnerable

Vulnerable Software	Affected Versions
Avast Antivirus	Before 19.4

Related CWEs

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

The product attempts to access a file based on the filename, but it does not properly prevent that filename from identifying a link or shortcut that resolves to an unintended resource.

References (4)

http://www.mcerlane.co.uk/CVE-2019-11230/

Source: cve@mitre.org

ExploitThird Party Advisory

http://www.securityfocus.com/bid/109344

Source: cve@mitre.org

Third Party Advisory

http://www.mcerlane.co.uk/CVE-2019-11230/

Source: af854a3a-2127-422b-91ae-364da2661108

ExploitThird Party Advisory

http://www.securityfocus.com/bid/109344

Source: af854a3a-2127-422b-91ae-364da2661108

Third Party Advisory

Timeline

No history available yet.