CVE-2019-11230

Public Exploit

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.

Category

4.4
CVSS
Severity: Medium
CVSS 3.0 •
CVSS 2.0 •
EPSS 0.11%
Third-Party Advisory co.uk Third-Party Advisory securityfocus.com
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
http://www.mcerlane.co.uk/CVE-2019-11230/ third party advisory exploit
http://www.securityfocus.com/bid/109344 third party advisory vdb entry

Frequently Asked Questions

What is the severity of CVE-2019-11230?
CVE-2019-11230 has been scored as a medium severity vulnerability.
How to fix CVE-2019-11230?
To fix CVE-2019-11230, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2019-11230 being actively exploited in the wild?
It is possible that CVE-2019-11230 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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