CVE-2020-15653 : Security Advisory and Response
Learn about CVE-2020-15653, a security flaw in Mozilla products allowing iframe sandbox bypass, impacting Firefox ESR < 78.1, Firefox < 79, and Thunderbird < 78.1. Find mitigation steps and updates.
An iframe sandbox element with the allow-popups flag could be bypassed when using noopener links, potentially leading to security issues for affected products.
Understanding CVE-2020-15653
This CVE affects Firefox ESR < 78.1, Firefox < 79, and Thunderbird < 78.1.
What is CVE-2020-15653?
This vulnerability arises from a bypass in the iframe sandbox when allowing popups, impacting specific versions of Mozilla products.
The Impact of CVE-2020-15653
The security flaw could allow malicious actors to bypass iframe sandbox restrictions, posing risks to websites with specific configurations.
Technical Details of CVE-2020-15653
This section provides in-depth technical insights into the vulnerability.
Vulnerability Description
An iframe sandbox with the allow-popups flag could be circumvented using noopener links, potentially compromising security.
Affected Systems and Versions
- Firefox ESR < 78.1
- Firefox < 79
- Thunderbird < 78.1
Exploitation Mechanism
The vulnerability could be exploited by leveraging the bypass in the iframe sandbox when allowing popups.
Mitigation and Prevention
Protective measures to address and prevent the CVE.
Immediate Steps to Take
- Update affected products to versions beyond the specified vulnerable ones.
- Disable unnecessary popups and review sandbox configurations.
Long-Term Security Practices
- Regularly update software to the latest versions.
- Implement strict security policies and configurations.
- Educate users on safe browsing practices.
Patching and Updates
Apply patches provided by Mozilla to fix the vulnerability and enhance system security.