CVE-2020-22907 : Vulnerability Insights and Analysis
Learn about CVE-2020-22907, a stack overflow vulnerability in function jsi_evalcode_sub in jsish before 3.0.18, allowing remote attackers to cause a Denial of Service. Find out the impact, technical details, and mitigation steps.
A stack overflow vulnerability in function jsi_evalcode_sub in jsish before 3.0.18 can allow remote attackers to cause a Denial of Service through a crafted value to the execute parameter.
Understanding CVE-2020-22907
This CVE involves a specific vulnerability in the jsish software that can be exploited by attackers to disrupt the service of the affected system.
What is CVE-2020-22907?
CVE-2020-22907 is a stack overflow vulnerability in the jsi_evalcode_sub function in jsish before version 3.0.18. This vulnerability enables remote attackers to trigger a Denial of Service attack by providing a malicious value to the execute parameter.
The Impact of CVE-2020-22907
The vulnerability can lead to a Denial of Service condition, causing the affected system to become unresponsive or crash, potentially disrupting services and operations.
Technical Details of CVE-2020-22907
This section provides more in-depth technical information about the CVE.
Vulnerability Description
The vulnerability exists in the jsi_evalcode_sub function in jsish before version 3.0.18, allowing attackers to exploit a stack overflow issue.
Affected Systems and Versions
- Affected Software: jsish before version 3.0.18
- Affected Versions: Not applicable
Exploitation Mechanism
Attackers can exploit this vulnerability by providing a crafted value to the execute parameter, triggering a stack overflow and leading to a Denial of Service condition.
Mitigation and Prevention
To address CVE-2020-22907 and enhance system security, follow these mitigation strategies:
Immediate Steps to Take
- Update jsish to version 3.0.18 or later to mitigate the vulnerability.
- Implement input validation mechanisms to prevent malicious inputs.
Long-Term Security Practices
- Regularly monitor and audit system logs for unusual activities.
- Conduct security assessments and penetration testing to identify and address vulnerabilities.
Patching and Updates
- Stay informed about security updates and patches for jsish.
- Apply patches promptly to ensure the system is protected against known vulnerabilities.