CVE-2021-46554 : Exploit Details and Defense Strategies
Discover the impact of CVE-2021-46554 on Cesanta MJS v2.20.0, a SEGV vulnerability that could lead to a Denial of Service (DoS). Learn about the affected systems, exploitation mechanism, and mitigation steps.
Cesanta MJS v2.20.0 contains a SEGV vulnerability that could result in a Denial of Service (DoS).
Understanding CVE-2021-46554
What is CVE-2021-46554?
Cesanta MJS v2.20.0 has been found to have a SEGV vulnerability in mjs_json_stringify at src/mjs_json.c, potentially leading to a DoS.
The Impact of CVE-2021-46554
This vulnerability could allow attackers to exploit the software, causing a denial of service condition.
Technical Details of CVE-2021-46554
Vulnerability Description
The vulnerability exists in Cesanta MJS v2.20.0 due to improper handling of certain functions, leading to a SEGV vulnerability.
Affected Systems and Versions
- Affected Versions: Cesanta MJS v2.20.0
Exploitation Mechanism
Attackers could leverage this vulnerability by crafting specific requests to trigger the SEGV vulnerability and induce a DoS condition.
Mitigation and Prevention
Immediate Steps to Take
- Update to the latest version of Cesanta MJS to patch the vulnerability.
- Monitor security advisories from the vendor for any further updates.
Long-Term Security Practices
- Regularly conduct security assessments and audits of the software.
- Implement network security measures to prevent unauthorized access.
Patching and Updates
Apply patches and updates provided by Cesanta to address the vulnerability.