CVE-2023-26848 : Security Advisory and Response

This CVE record pertains to a vulnerability identified as CVE-2023-26848, which was published on April 7, 2023. The vulnerability was found in the TOTOlink A7100RU(V7.4cu.2313_B20191024) device and involves a command injection vulnerability through the org parameter at setting/delStaticDhcpRules.

Understanding CVE-2023-26848

In this section, we will delve into the details of CVE-2023-26848 and understand the impact, technical aspects, and mitigation strategies related to this vulnerability.

What is CVE-2023-26848?

The CVE-2023-26848 vulnerability specifically affects the TOTOlink A7100RU(V7.4cu.2313_B20191024) device. It allows attackers to exploit a command injection vulnerability by manipulating the org parameter within the setting/delStaticDhcpRules endpoint.

The Impact of CVE-2023-26848

This vulnerability can be exploited by malicious actors to execute arbitrary commands on the affected device. Such unauthorized access can lead to a compromise of sensitive data, unauthorized network changes, and potential disruption of services.

Technical Details of CVE-2023-26848

Let's explore the technical aspects of CVE-2023-26848, including the vulnerability description, affected systems and versions, and the exploitation mechanism.

Vulnerability Description

The vulnerability in TOTOlink A7100RU(V7.4cu.2313_B20191024) enables threat actors to inject and execute arbitrary commands through the org parameter in the setting/delStaticDhcpRules endpoint, posing a severe security risk.

Affected Systems and Versions

As per the current data, the TOTOlink A7100RU(V7.4cu.2313_B20191024) device is affected by this vulnerability. Other systems and versions may not be impacted.

Exploitation Mechanism

By sending crafted requests to the device's setting/delStaticDhcpRules endpoint with a manipulated org parameter, attackers can inject malicious commands and potentially gain unauthorized control over the device.

Mitigation and Prevention

Mitigating CVE-2023-26848 involves immediate actions to secure the affected device and implementing long-term security practices to prevent future vulnerabilities.

Immediate Steps to Take

Disable remote access to the device if not required.
Monitor network traffic for any suspicious activity.
Apply firewall rules to restrict access to vulnerable endpoints.
Contact the device vendor for security patches or updates.

Long-Term Security Practices

Regularly update device firmware and software to patch known vulnerabilities.
Conduct security assessments and penetration testing on network devices.
Implement network segmentation to limit the impact of potential breaches.
Educate users on best security practices to prevent social engineering attacks.

Patching and Updates

It is crucial to stay informed about security updates from TOTOlink and apply patches promptly. Regularly check for firmware updates and apply them as soon as they are available to mitigate the CVE-2023-26848 vulnerability.