CVE-2023-39346 Explained : Impact and Mitigation

LinuxASMCallGraph before commit 20dba06 allows attackers to cause a Remote Code Execution (RCE) on the server side via uploading a crafted ZIP file due to incorrect filtering rules of uploaded files.

Understanding CVE-2023-39346

This section provides insights into the impact, technical details, and mitigation strategies related to CVE-2023-39346.

What is CVE-2023-39346?

LinuxASMCallGraph is software used for drawing the call graph of programming code. In this case, a vulnerability in versions lower than commit 20dba06 allows attackers to exploit the system by uploading malicious ZIP files.

The Impact of CVE-2023-39346

The vulnerability permits adversaries to execute arbitrary code on the server, potentially leading to severe consequences such as data breaches, system compromise, and unauthorized access.

Technical Details of CVE-2023-39346

Below are the specific technical details regarding the CVE-2023-39346.

Vulnerability Description

LinuxASMCallGraph before commit 20dba06bd1a3cf260612d4f21547c25002121cd5 has a flaw that enables attackers to trigger a remote code execution by exploiting the flawed file upload filtering mechanism.

Affected Systems and Versions

The issue impacts versions of LinuxASMCallGraph that are older than commit 20dba06bd1a3cf260612d4f21547c25002121cd5.

Exploitation Mechanism

Attackers can exploit this vulnerability by uploading specially crafted ZIP files, taking advantage of the inadequate file verification protocols present in affected versions.

Mitigation and Prevention

Protecting systems from CVE-2023-39346 requires immediate action and long-term security measures.

Immediate Steps to Take

Update LinuxASMCallGraph to version 20dba06bd1a3cf260612d4f21547c25002121cd5 or higher to eliminate the vulnerability.
Consider restricting file upload permissions to prevent unauthorized content.

Long-Term Security Practices

Regularly monitor for security updates and apply them promptly.
Conduct thorough security audits to identify and address any existing vulnerabilities.

Patching and Updates

Ensure that all software components are consistently updated to the latest versions to mitigate potential risks and enhance system security.