CVE-2021-46526 Explained : Impact and Mitigation
Discover the impact of CVE-2021-46526 in Cesanta MJS v2.20.0, allowing attackers to execute arbitrary code or cause a denial of service. Learn about mitigation steps and prevention measures.
Cesanta MJS v2.20.0 contains a global buffer overflow vulnerability via snquote at src/mjs_json.c.
Understanding CVE-2021-46526
What is CVE-2021-46526?
Cesanta MJS v2.20.0 was found to have a security issue that allows a global buffer overflow through snquote at src/mjs_json.c.
The Impact of CVE-2021-46526
The vulnerability could be exploited by attackers to execute arbitrary code or cause a denial of service.
Technical Details of CVE-2021-46526
Vulnerability Description
A global buffer overflow vulnerability exists in Cesanta MJS v2.20.0 via snquote at src/mjs_json.c.
Affected Systems and Versions
- Affected Version: v2.20.0
Exploitation Mechanism
Attackers can exploit this issue by sending specially crafted requests to the vulnerable component, leading to the overflow.
Mitigation and Prevention
Immediate Steps to Take
- Apply vendor-provided patches as soon as they are available.
- Monitor security advisories for updates regarding this vulnerability.
Long-Term Security Practices
- Regularly update software to the latest versions to prevent known vulnerabilities.
- Implement network security measures to detect and block malicious activities.
Patching and Updates
It is essential to apply patches and updates released by the vendor to address the CVE-2021-46526 vulnerability.