CVE-2019-10759 : Exploit Details and Defense Strategies

Versions of safer-eval prior to 1.3.4 have a vulnerability that allows for Arbitrary Code Execution by bypassing the sandbox through constructor properties.

Understanding CVE-2019-10759

Versions of safer-eval prior to 1.3.4 are susceptible to Arbitrary Code Execution, enabling malicious payloads to execute code of any kind.

What is CVE-2019-10759?

Vulnerability in safer-eval allows for Arbitrary Code Execution by exploiting constructor properties.
Attackers can bypass the sandbox and execute arbitrary code using this vulnerability.

The Impact of CVE-2019-10759

Malicious actors can execute arbitrary code, compromising the security and integrity of affected systems.

Technical Details of CVE-2019-10759

safer-eval before version 1.3.4 are vulnerable to Arbitrary Code Execution.

Vulnerability Description

The vulnerability in safer-eval allows for Arbitrary Code Execution by utilizing constructor properties.

Affected Systems and Versions

Product: safer-eval
Vendor: Snyk
Versions Affected: All versions prior to 1.3.4

Exploitation Mechanism

Attackers can craft payloads using constructor properties to escape the sandbox and execute arbitrary code.

Mitigation and Prevention

Immediate Steps to Take

Update safer-eval to version 1.3.4 or later to mitigate the vulnerability.
Implement input validation to prevent malicious payloads. Long-Term Security Practices
Regularly update software and libraries to patch known vulnerabilities.
Conduct security audits and code reviews to identify and address potential security flaws.
Educate developers on secure coding practices to prevent similar vulnerabilities.
Monitor for any unusual behavior indicating a potential exploit.

Patching and Updates

Apply patches and updates provided by Snyk to address the vulnerability.