CVE-2019-10769 : Exploit Details and Defense Strategies

The npm package safer-eval has a vulnerability that allows for Arbitrary Code Execution through the manipulation of a RangeError exception.

Understanding CVE-2019-10769

safer-eval is designed to securely evaluate code within the eval function by implementing sandboxing techniques. However, certain versions of this package have a vulnerability that allows for Arbitrary Code Execution.

What is CVE-2019-10769?

safer-eval, an npm package, is vulnerable to Arbitrary Code Execution through the manipulation of a RangeError exception.

The Impact of CVE-2019-10769

This vulnerability could allow attackers to execute arbitrary code, potentially leading to unauthorized access, data breaches, and system compromise.

Technical Details of CVE-2019-10769

safer-eval vulnerability details.

Vulnerability Description

Affected versions of safer-eval are susceptible to Arbitrary Code Execution by exploiting a RangeError exception.

Affected Systems and Versions

Product: safer-eval
Vendor: n/a
Versions: All versions

Exploitation Mechanism

The vulnerability in safer-eval allows attackers to execute arbitrary code by manipulating a RangeError exception.

Mitigation and Prevention

Protecting systems from CVE-2019-10769.

Immediate Steps to Take

Update safer-eval to a non-vulnerable version if available.
Implement input validation to prevent malicious code execution.
Monitor for any unusual behavior indicating a potential exploit.

Long-Term Security Practices

Regularly update dependencies to patched versions.
Conduct security audits and code reviews to identify vulnerabilities.
Educate developers on secure coding practices to prevent similar issues.

Patching and Updates

Stay informed about security advisories for safer-eval.
Apply patches promptly to mitigate the risk of Arbitrary Code Execution.