CVE-2021-23982 : Vulnerability Insights and Analysis
Learn about CVE-2021-23982 impacting Mozilla products. Malicious websites could scan internal networks, posing security risks. Find out impact, mitigation steps, and prevention.
A malicious webpage exploiting CVE-2021-23982 could scan an internal network's hosts and services using WebRTC connections in Firefox ESR < 78.9, Firefox < 87, and Thunderbird < 78.9.
Understanding CVE-2021-23982
This vulnerability in Mozilla products could allow malicious websites to scan internal networks.
What is CVE-2021-23982?
The vulnerability in Firefox ESR, Firefox, and Thunderbird allowed malicious webpages to scan internal hosts and services of a user.
The Impact of CVE-2021-23982
Exploitation could lead to unauthorized probing of internal network hosts with significant privacy and security risks.
Technical Details of CVE-2021-23982
Magecart, a threat actor group, exploited this vulnerability to perform web skimming attacks targeting online payment forms and stealing credit card information.
Vulnerability Description
By injecting web skimming code into e-commerce websites, Magecart compromised payment data, leading to financial losses.
Affected Systems and Versions
All e-commerce websites using vulnerable payment platforms were at risk of data theft.
Exploitation Mechanism
Magecart utilized vulnerabilities in third-party scripts to inject malicious code and steal sensitive payment information.
Mitigation and Prevention
To mitigate the risks associated with CVE-2021-23982, immediate actions and security best practices are crucial.
Immediate Steps to Take
Update all e-commerce platforms and plugins to their latest secure versions to prevent Magecart attacks.
Long-Term Security Practices
Regular security audits, code reviews, and timely updates are essential to protect against web skimming threats.
Patching and Updates
Stay informed about security vulnerabilities, apply patches promptly, and monitor for any signs of unauthorized code injections.