CVE-2017-20186 Explained : Impact and Mitigation
Learn about CVE-2017-20186, a denial of service vulnerability in nikooo777 ckSurf up to version 1.19.2 impacting the Spectator List Name Handler component. Find out how to mitigate and prevent exploitation.
CVE-2017-20186 is a vulnerability found in nikooo777 ckSurf up to version 1.19.2, impacting the Spectator List Name Handler component. This vulnerability allows for a denial of service attack through manipulation of the cleanName argument.
Understanding CVE-2017-20186
This CVE entry highlights a denial of service vulnerability in the ckSurf Spectator List Name Handler component.
What is CVE-2017-20186?
The vulnerability in nikooo777 ckSurf up to version 1.19.2 allows attackers to exploit the SpecListMenuDead function, leading to a denial of service due to improper handling of user-supplied data.
The Impact of CVE-2017-20186
The impact of this vulnerability is considered low with a CVSS base score of 3.5. However, it can result in service disruption and potential exploitation by malicious actors.
Technical Details of CVE-2017-20186
This section provides detailed technical information about the vulnerability.
Vulnerability Description
The vulnerability in ckSurf allows attackers to trigger a denial of service by manipulating the cleanName argument within the SpecListMenuDead function.
Affected Systems and Versions
- Vendor: nikooo777
- Product: ckSurf
- Affected Versions: 1.19.0, 1.19.1, 1.19.2
- Affected Component: Spectator List Name Handler
Exploitation Mechanism
Attackers can exploit this vulnerability by manipulating the cleanName argument, causing the SpecListMenuDead function to crash, resulting in a denial of service.
Mitigation and Prevention
Protecting systems from CVE-2017-20186 requires immediate action and long-term security measures.
Immediate Steps to Take
- Upgrade to version 1.21.0 of ckSurf to apply the necessary patch (fd6318d99083a06363091441a0614bd2f21068e6).
Long-Term Security Practices
- Regularly update software and components to prevent known vulnerabilities.
- Monitor and restrict access to sensitive functions to mitigate potential attacks.
Patching and Updates
- Apply patches provided by the vendor promptly to address security vulnerabilities and prevent exploitation.