CVE-2023-28102 : Vulnerability Insights and Analysis

This CVE involves a command injection vulnerability found in discordrb, an implementation of the Discord API using Ruby. The vulnerability exists in versions up to 3.4.1 of the library, making it susceptible to potential command injection attacks.

Understanding CVE-2023-28102

This section will delve into the details of CVE-2023-28102, discussing the vulnerability, its impact, technical details, and mitigation strategies.

What is CVE-2023-28102?

The vulnerability in discordrb arises from the unsafe construction of a shell string in the

encoder.rb

file using the file parameter. If a client passes unsafe input to the vulnerable method, it could lead to arbitrary shell command execution on the host machine. While the exploit requires user input, the consequences depend on the permissions of the process running the discordrb library.

The Impact of CVE-2023-28102

The impact of this vulnerability could result in unauthorized command execution on the host machine where the discordrb library is used. However, complete system access may not be guaranteed, as it relies on the permissions of the affected process.

Technical Details of CVE-2023-28102

In this section, we will discuss the vulnerability description, affected systems and versions, as well as the exploitation mechanism.

Vulnerability Description

The vulnerability in discordrb allows for potential command injection due to the unsafe construction of a shell string using the file parameter in the

encoder.rb

file. This could be exploited by passing malicious input to the vulnerable method.

Affected Systems and Versions

The affected system is the discordrb library, specifically versions up to 3.4.1. Users of these versions are at risk of command injection if unsafe input is provided to the library method.

Exploitation Mechanism

Exploiting this vulnerability requires passing malicious input to the vulnerable method within the discordrb library. If successful, an attacker could execute unauthorized shell commands on the host machine.

Mitigation and Prevention

This section focuses on immediate steps to take, long-term security practices, and the importance of patching and updates.

Immediate Steps to Take

Users of discordrb version 3.4.1 and below are advised to avoid passing unsanitized input to the library and sanitize all user inputs to prevent potential command injection attacks. It is recommended to monitor official channels for updates and patches addressing this vulnerability.

Long-Term Security Practices

To enhance overall security posture, regularly review and update library dependencies, follow secure coding practices, and conduct periodic security assessments to identify and remediate potential vulnerabilities.

Patching and Updates

Users should monitor for the release of a new version of the discordrb gem that addresses the command injection vulnerability. Once available, it is crucial to promptly apply the patch by updating to the secure version to mitigate the risk of exploitation.