CVE-2020-6391 Explained : Impact and Mitigation
Learn about CVE-2020-6391 affecting Google Chrome. Discover how a local attacker can bypass content security policy via a crafted HTML page. Find mitigation steps and affected versions.
Google Chrome prior to 80.0.3987.87 allows a local attacker to bypass content security policy via a crafted HTML page.
Understanding CVE-2020-6391
Insufficient validation of untrusted input in Blink in Google Chrome prior to 80.0.3987.87 allowed a local attacker to bypass content security policy via a crafted HTML page.
What is CVE-2020-6391?
- Vulnerability in Google Chrome prior to version 80.0.3987.87
- Local attacker can bypass content security policy using a crafted HTML page
The Impact of CVE-2020-6391
- Local attacker can exploit the vulnerability
- Bypass content security policy
Technical Details of CVE-2020-6391
Insufficient validation of untrusted input in Blink in Google Chrome prior to 80.0.3987.87 allowed a local attacker to bypass content security policy via a crafted HTML page.
Vulnerability Description
- Insufficient validation of untrusted input
Affected Systems and Versions
- Product: Chrome
- Vendor: Google
- Versions affected: < 80.0.3987.87
Exploitation Mechanism
- Local attacker crafts a malicious HTML page to bypass content security policy
Mitigation and Prevention
Immediate Steps to Take
- Update Google Chrome to version 80.0.3987.87 or later
- Be cautious while browsing untrusted websites
Long-Term Security Practices
- Regularly update browsers and security software
- Educate users on safe browsing habits
Patching and Updates
- Apply security patches promptly