CVE-2020-8815 : What You Need to Know

IKTeam BearFTP before v0.3.1 is vulnerable to a denial of service attack due to improper connection handling in the base connection handler.

Understanding CVE-2020-8815

This CVE involves a vulnerability in IKTeam BearFTP that allows a remote attacker to conduct a denial of service attack using a Slowloris approach.

What is CVE-2020-8815?

The vulnerability arises from improper connection handling in the base connection handler of IKTeam BearFTP before version 0.3.1. An attacker can exploit this issue by flooding the server with a large volume of small packets, leading to a denial of service condition.

The Impact of CVE-2020-8815

The impact of this vulnerability is the potential for a remote attacker to disrupt the availability of the BearFTP service, causing a denial of service condition for legitimate users.

Technical Details of CVE-2020-8815

IKTeam BearFTP before v0.3.1 is susceptible to a denial of service attack due to improper connection handling.

Vulnerability Description

The vulnerability in IKTeam BearFTP allows a remote attacker to achieve denial of service by flooding the server with a large volume of small packets, exploiting the improper connection handling in the base connection handler.

Affected Systems and Versions

Affected System: IKTeam BearFTP
Affected Versions: Before v0.3.1

Exploitation Mechanism

The attacker can exploit this vulnerability by sending a large number of small packets to the BearFTP server, overwhelming its connection handling mechanism and causing a denial of service.

Mitigation and Prevention

To address CVE-2020-8815, users and administrators should take immediate steps and implement long-term security practices.

Immediate Steps to Take

Update to version 0.3.1 or later of IKTeam BearFTP to mitigate the vulnerability.
Monitor network traffic for any signs of unusual packet volume that could indicate a denial of service attack.

Long-Term Security Practices

Regularly update software and apply patches to prevent known vulnerabilities.
Implement network security measures to detect and mitigate denial of service attacks.

Patching and Updates

Ensure all systems running IKTeam BearFTP are updated to version 0.3.1 or the latest release to patch the vulnerability.