CVE-2020-8416 Explained : Impact and Mitigation
Learn about CVE-2020-8416, a vulnerability in IKTeam BearFTP before 0.2.0 allowing remote attackers to cause denial of service. Find mitigation steps and preventive measures.
IKTeam BearFTP before 0.2.0 allows remote attackers to achieve denial of service via a large volume of connections to the PASV mode port.
Understanding CVE-2020-8416
IKTeam BearFTP before version 0.2.0 is vulnerable to a denial of service attack due to a specific issue.
What is CVE-2020-8416?
CVE-2020-8416 is a vulnerability in IKTeam BearFTP before version 0.2.0 that enables remote attackers to cause a denial of service by flooding the PASV mode port with a high volume of connections.
The Impact of CVE-2020-8416
This vulnerability allows malicious actors to disrupt the availability of the BearFTP service, potentially leading to service downtime and affecting users' ability to transfer files.
Technical Details of CVE-2020-8416
IKTeam BearFTP before version 0.2.0 is susceptible to a denial of service attack due to the following details:
Vulnerability Description
The vulnerability in BearFTP allows remote attackers to exploit the PASV mode port by overwhelming it with a large number of connections, leading to a denial of service condition.
Affected Systems and Versions
- Product: IKTeam BearFTP
- Vendor: N/A
- Versions Affected: Before 0.2.0
Exploitation Mechanism
Attackers can exploit this vulnerability by establishing a significant number of connections to the PASV mode port, causing the service to become unresponsive.
Mitigation and Prevention
To address CVE-2020-8416 and enhance security measures, consider the following steps:
Immediate Steps to Take
- Update to version 0.2.0 or later of BearFTP to mitigate the vulnerability.
- Monitor network traffic for any unusual connection patterns that could indicate a denial of service attack.
Long-Term Security Practices
- Implement network-level protections such as rate limiting to prevent excessive connections to critical ports.
- Regularly review and update security configurations to address emerging threats.
Patching and Updates
- Stay informed about security advisories and promptly apply patches released by the software vendor to address known vulnerabilities.