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.
Advisories
Source ID Title
EUVD EUVD EUVD-2019-2929 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.
Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

No history.

cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

Updated: 2024-08-04T22:48:08.990Z

Reserved: 2019-04-14T00:00:00

Link: CVE-2019-11230

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2019-07-18T17:15:11.880

Modified: 2024-11-21T04:20:46.377

Link: CVE-2019-11230

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.