CVE-2018-18351 Explained : Impact and Mitigation
Learn about CVE-2018-18351, a vulnerability in Google Chrome versions before 71.0.3578.80 allowing remote attackers to bypass the SameSite cookie policy. Find out about affected systems, exploitation, and mitigation steps.
An issue in Google Chrome versions prior to 71.0.3578.80 allowed a remote attacker to bypass the SameSite cookie policy by sending lax cookies without proper validation of ancestor frames site during navigation.
Understanding CVE-2018-18351
What is CVE-2018-18351?
This vulnerability in Google Chrome versions before 71.0.3578.80 could be exploited by a remote attacker using a specially crafted HTML page to bypass the SameSite cookie policy.
The Impact of CVE-2018-18351
The vulnerability allowed attackers to bypass the SameSite cookie policy, potentially leading to unauthorized access and data theft.
Technical Details of CVE-2018-18351
Vulnerability Description
- Lack of proper validation of ancestor frames site when sending lax cookies in Navigation in Google Chrome prior to 71.0.3578.80
- Allowed a remote attacker to bypass SameSite cookie policy via a crafted HTML page
Affected Systems and Versions
- Product: Chrome
- Vendor: Google
- Versions Affected: < 71.0.3578.80
Exploitation Mechanism
- Remote attacker could exploit the vulnerability using a specially crafted HTML page
Mitigation and Prevention
Immediate Steps to Take
- Update Google Chrome to version 71.0.3578.80 or higher
- Regularly monitor security advisories from Google
Long-Term Security Practices
- Implement strict cookie policies and validation mechanisms
- Conduct regular security audits and penetration testing
Patching and Updates
- Apply security patches and updates promptly to ensure protection against known vulnerabilities