CVE-2019-18894: OS Command Injection
First published: Mon Jan 13 2020(Updated: )
In Avast Premium Security 19.8.2393, attackers can send a specially crafted request to the local web server run by Avast Antivirus on port 27275 to support Bank Mode functionality. A flaw in the processing of a command allows execution of arbitrary OS commands with the privileges of the currently logged in user. This allows for example attackers who compromised a browser extension to escape from the browser sandbox.
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Avast Premium Security | =19.8.2393 |
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Frequently Asked Questions
What is CVE-2019-18894?
CVE-2019-18894 is a vulnerability in Avast Premium Security 19.8.2393 that allows attackers to execute arbitrary OS commands with the privileges of the logged-in user.
How severe is CVE-2019-18894?
CVE-2019-18894 has a severity rating of 7.8 out of 10, which is considered critical.
How does CVE-2019-18894 work?
CVE-2019-18894 can be exploited by sending a specially crafted request to the local web server run by Avast Antivirus on port 27275, which triggers a flaw in command processing and allows execution of arbitrary OS commands.
Which software version is affected by CVE-2019-18894?
Avast Premium Security 19.8.2393 is affected by CVE-2019-18894.
Is there a fix available for CVE-2019-18894?
Yes, it is recommended to update Avast Premium Security to a version that includes the security patch for CVE-2019-18894.
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