CVE-2019-3970 : What You Need to Know
Learn about CVE-2019-3970 affecting Comodo Antivirus versions up to 12.0.0.6810. Find out how local processes can exploit the vulnerability to modify virus signatures.
Comodo Antivirus versions up to 12.0.0.6810 are vulnerable to Arbitrary File Write due to a flaw in how Cavwp.exe handles the antivirus database, allowing unauthorized modification of virus signatures.
Understanding CVE-2019-3970
Comodo Antivirus versions up to 12.0.0.6810 are susceptible to an Arbitrary File Write vulnerability that can be exploited by local processes with low privileges.
What is CVE-2019-3970?
The vulnerability in Comodo Antivirus versions up to 12.0.0.6810 allows unauthorized modification of virus signatures by exploiting how Cavwp.exe loads the antivirus database in unsecured global section objects.
The Impact of CVE-2019-3970
The vulnerability can be exploited by local processes with low privileges to directly modify the antivirus database, potentially leading to unauthorized changes in virus signatures.
Technical Details of CVE-2019-3970
Comodo Antivirus versions up to 12.0.0.6810 are affected by an Arbitrary File Write vulnerability due to insecure handling of the antivirus database by Cavwp.exe.
Vulnerability Description
The flaw in Cavwp.exe allows local processes with low privileges to modify the antivirus database, enabling unauthorized alterations to virus signatures.
Affected Systems and Versions
- Product: Comodo Antivirus
- Versions Affected: Versions 12.0.0.6810 and below
Exploitation Mechanism
- Attackers can exploit the vulnerability by leveraging the insecure loading of the antivirus database in unsecured global section objects by Cavwp.exe.
Mitigation and Prevention
To address CVE-2019-3970, users and organizations should take immediate steps and implement long-term security practices.
Immediate Steps to Take
- Update Comodo Antivirus to version 12.0.0.6810 or above to mitigate the vulnerability.
- Monitor system activity for any unauthorized modifications to virus signatures.
Long-Term Security Practices
- Regularly update antivirus software to the latest versions to patch known vulnerabilities.
- Implement the principle of least privilege to restrict unauthorized access to critical system components.
Patching and Updates
- Apply patches and updates provided by Comodo Antivirus to address the Arbitrary File Write vulnerability.