CVE-2023-38505 : What You Need to Know
Learn about CVE-2023-38505, a vulnerability in DietPi-Dashboard version 0.6.1 allowing denial-of-service attacks by blocking TLS handshakes, with mitigation steps.
This article provides detailed information on CVE-2023-38505, a vulnerability in DietPi-Dashboard that could potentially impact systems due to an insufficient TLS handshake pool.
Understanding CVE-2023-38505
In this section, we will explore what CVE-2023-38505 is, its impact, technical details, and mitigation strategies.
What is CVE-2023-38505?
CVE-2023-38505 highlights an issue in DietPi-Dashboard where only one TLS handshake process can occur at a time, leaving systems vulnerable to a denial-of-service attack.
The Impact of CVE-2023-38505
This vulnerability allows an attacker to lock the dashboard in a state where it awaits a TLS handshake that will never occur, leading to a disruption in legitimate traffic flow.
Technical Details of CVE-2023-38505
Let's delve into the specifics of the vulnerability affecting DietPi-Dashboard.
Vulnerability Description
In version 0.6.1, the dashboard is susceptible to an attack where an attacker can prevent TLS handshakes, effectively blocking legitimate traffic from reaching the dashboard.
Affected Systems and Versions
The vulnerability impacts DietPi-Dashboard version 0.6.1, while version 0.6.2 includes a patch to address this issue.
Exploitation Mechanism
By intentionally not initiating the TLS handshake, an attacker can disrupt the dashboard's normal operation, causing it to remain in a state where it awaits input that will never arrive.
Mitigation and Prevention
Here, we discuss the steps that can be taken to mitigate the risks associated with CVE-2023-38505.
Immediate Steps to Take
Avoid using HTTPS mode on publicly accessible environments. Implement a reverse proxy to manage incoming HTTPS connections and ensure continuous traffic flow.
Long-Term Security Practices
Regularly update DietPi-Dashboard to the latest version to benefit from patches and security enhancements that address known vulnerabilities.
Patching and Updates
Ensure that version 0.6.2 or later of DietPi-Dashboard is deployed to protect systems from the TLS handshake pool vulnerability.