CVE-2017-16088 : Security Advisory and Response
Learn about CVE-2017-16088, a vulnerability in the safe-eval node module that allows attackers to bypass sandbox restrictions and exploit the standard library. Find mitigation steps and prevention measures here.
Safe-eval Node Module Vulnerability
Understanding CVE-2017-16088
What is CVE-2017-16088?
The safe-eval module, considered a more secure alternative to the eval function, can be exploited if un-sanitized user input gains access to object constructors, potentially bypassing sandbox limitations.
The Impact of CVE-2017-16088
Exploiting this vulnerability can allow an attacker to bypass sandbox restrictions and potentially exploit the entire standard library.
Technical Details of CVE-2017-16088
Vulnerability Description
The safe-eval module, designed as a safer version of eval, can be compromised by un-sanitized user input accessing object constructors, leading to a breach of sandbox restrictions.
Affected Systems and Versions
- Product: safe-eval node module
- Vendor: HackerOne
- Versions: All versions
Exploitation Mechanism
By manipulating un-sanitized user input to access object constructors, attackers can break out of the sandbox and potentially exploit the standard library.
Mitigation and Prevention
Immediate Steps to Take
- Avoid using the safe-eval module in production environments until a patch is available.
- Implement input sanitization to prevent untrusted user input from accessing object constructors.
Long-Term Security Practices
- Regularly update dependencies to ensure the latest secure versions are in use.
- Conduct security audits to identify and address vulnerabilities proactively.
Patching and Updates
- Monitor for patches or updates from HackerOne for the safe-eval module to address this vulnerability.