CVE-2023-34356 Explained : Impact and Mitigation

This article provides an overview of CVE-2023-34356, detailing the vulnerability, impact, technical details, and mitigation steps.

Understanding CVE-2023-34356

CVE-2023-34356 is an OS command injection vulnerability in the data.cgi xfer_dns functionality of Peplink Surf SOHO HW1 v6.3.5 (in QEMU). A specially crafted HTTP request can result in command execution.

What is CVE-2023-34356?

CVE-2023-34356 is classified as CWE-78: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection').

The Impact of CVE-2023-34356

The vulnerability has a CVSSv3.1 base score of 7.2, indicating a high severity level with significant impacts on confidentiality, integrity, and availability.

Technical Details of CVE-2023-34356

The vulnerability allows for unauthorized command execution through specially crafted HTTP requests.

Vulnerability Description

An OS command injection flaw in the data.cgi xfer_dns functionality of Peplink Surf SOHO HW1 v6.3.5 (in QEMU) permits attackers to execute commands.

Affected Systems and Versions

Peplink Surf SOHO HW1 v6.3.5 (in QEMU) is affected by this vulnerability.

Exploitation Mechanism

Attackers can exploit this vulnerability by sending authenticated HTTP requests.

Mitigation and Prevention

To protect systems from CVE-2023-34356, immediate actions and long-term security practices are recommended.

Immediate Steps to Take

Users should apply necessary patches and updates provided by Peplink to remediate this vulnerability.

Long-Term Security Practices

Implementing network security measures and restricting access to sensitive functionalities can enhance overall system security.

Patching and Updates

Regularly monitor for security advisories from Peplink and apply patches promptly to mitigate potential risks.