CVE-2021-23771 Explained : Impact and Mitigation

This CVE-2021-23771 article provides insight into a vulnerability affecting the 'notevil' and 'argencoders-notevil' packages, leading to Sandbox Bypass due to Prototype pollution.

Understanding CVE-2021-23771

CVE-2021-23771, published on March 17, 2022, exposes security issues in 'notevil' and 'argencoders-notevil' packages, potentially allowing Sandbox Bypass.

What is CVE-2021-23771?

CVE-2021-23771 impacts all versions of 'notevil' and 'argencoders-notevil,' resulting in Sandbox Bypass through Prototype pollution. Attackers can manipulate an object's prototype due to unrestricted access.

The Impact of CVE-2021-23771

The vulnerability poses a Medium severity threat with a CVSS base score of 6.5. It requires no special privileges, making it accessible via network with proof of concept exploit maturity.

Technical Details of CVE-2021-23771

Learn more about the technical aspects of CVE-2021-23771.

Vulnerability Description

The vulnerability allows attackers to escape the sandbox by manipulating object prototypes in 'notevil' and 'argencoders-notevil' packages.

Affected Systems and Versions

All versions of 'notevil' and 'argencoders-notevil' are vulnerable to Sandbox Bypass via Prototype pollution.

Exploitation Mechanism

By exploiting the incomplete fix in the 'notevil' package, attackers can gain unauthorized access to manipulate object prototypes.

Mitigation and Prevention

Discover how to mitigate the risks associated with CVE-2021-23771.

Immediate Steps to Take

Update 'notevil' and 'argencoders-notevil' packages to patched versions immediately to prevent Sandbox Bypass.

Long-Term Security Practices

Implement secure coding practices and regular security audits to prevent vulnerabilities like Sandbox Bypass.

Patching and Updates

Stay informed about security patches and updates for 'notevil' and 'argencoders-notevil' packages to maintain a secure environment.