CVE-2023-26613 : Security Advisory and Response

This is a published CVE identifier assigned by MITRE for an OS command injection vulnerability found in the D-Link DIR-823G firmware version 1.02B05. Unauthorized attackers can exploit this vulnerability to execute arbitrary operating system commands via a crafted GET request to EXCU_SHELL.

Understanding CVE-2023-26613

This section discusses what CVE-2023-26613 is, its impact, technical details, and mitigation strategies.

What is CVE-2023-26613?

CVE-2023-26613 is an OS command injection vulnerability present in the D-Link DIR-823G firmware version 1.02B05. It allows attackers to run unauthorized operating system commands by sending a specifically crafted GET request to EXCU_SHELL.

The Impact of CVE-2023-26613

The vulnerability in the D-Link DIR-823G firmware version 1.02B05 poses a significant security risk as it enables attackers to execute arbitrary commands on the affected system. This could result in unauthorized access, data theft, or further exploitation of the device.

Technical Details of CVE-2023-26613

In this section, we delve into the specifics of the vulnerability, including its description, affected systems and versions, and the exploitation mechanism.

Vulnerability Description

The OS command injection vulnerability in the D-Link DIR-823G firmware version 1.02B05 permits attackers to execute malicious operating system commands by manipulating the EXCU_SHELL component through a specially crafted GET request.

Affected Systems and Versions

The affected product in this CVE entry is the D-Link DIR-823G firmware version 1.02B05. Other versions or products may not be impacted by this specific vulnerability.

Exploitation Mechanism

Attackers can exploit this vulnerability by sending a specifically crafted GET request to the EXCU_SHELL functionality within the D-Link DIR-823G firmware version 1.02B05, allowing them to execute unauthorized operating system commands.

Mitigation and Prevention

In this section, we outline immediate steps to take, long-term security practices, and the importance of applying patches and updates.

Immediate Steps to Take

To mitigate the risk associated with CVE-2023-26613, users and administrators should restrict access to potentially vulnerable devices, monitor network activity for suspicious behavior, and apply relevant security configurations.

Long-Term Security Practices

Implementing robust network segmentation, conducting regular security audits, keeping systems up to date with the latest patches, and educating users about safe online practices are essential long-term security measures to prevent similar vulnerabilities.

Patching and Updates

D-Link may release patches or updates to address the OS command injection vulnerability in the DIR-823G firmware version 1.02B05. Users are strongly advised to apply these patches promptly to secure their devices against potential exploitation.