CVE-2021-46524 : Exploit Details and Defense Strategies
Learn about the Cesanta MJS v2.20.0 heap buffer overflow vulnerability in CVE-2021-46524. Find out the impact, affected systems, exploitation mechanism, and mitigation steps.
Cesanta MJS v2.20.0 has a heap buffer overflow vulnerability via snquote at mjs/src/mjs_json.c.
Understanding CVE-2021-46524
Cesanta MJS v2.20.0 heap buffer overflow vulnerability details.
What is CVE-2021-46524?
Cesanta MJS v2.20.0 has a vulnerability in the snquote function leading to a heap buffer overflow.
The Impact of CVE-2021-46524
The vulnerability may allow remote attackers to execute arbitrary code or cause a denial of service.
Technical Details of CVE-2021-46524
Details on the technical aspects of the vulnerability.
Vulnerability Description
Cesanta MJS v2.20.0 has a heap buffer overflow via snquote at mjs/src/mjs_json.c.
Affected Systems and Versions
- Product: n/a
- Vendor: n/a
- Version: n/a
Exploitation Mechanism
The vulnerability can be exploited by crafting a malicious input, triggering the overflow.
Mitigation and Prevention
Methods to mitigate and prevent the CVE-2021-46524 risk.
Immediate Steps to Take
- Update Cesanta MJS to a patched version if available.
- Implement input validation to avoid malicious exploitation.
Long-Term Security Practices
- Regularly update software and libraries to patch known vulnerabilities.
- Conduct security audits and code reviews to identify and fix vulnerabilities.
Patching and Updates
- Monitor for security advisories and apply patches promptly.