CVE-2023-30800 : What You Need to Know

A detailed overview of CVE-2023-30800 affecting MikroTik RouterOS and its impact on web interface security.

Understanding CVE-2023-30800

CVE-2023-30800 involves a heap memory corruption vulnerability in the web server used by MikroTik RouterOS version 6, potentially allowing remote attackers to disrupt the server's operation.

What is CVE-2023-30800?

The web server in MikroTik RouterOS version 6 is susceptible to a heap memory corruption flaw, triggered by crafted HTTP requests. This issue can lead to the crash of the web interface, impacting system availability.

The Impact of CVE-2023-30800

The vulnerability poses a significant threat to system availability, allowing unauthenticated attackers to remotely corrupt the server's heap memory. Successful exploitation can result in the web interface crashing and subsequently restarting, affecting user accessibility.

Technical Details of CVE-2023-30800

Explore the specific technical aspects of the CVE-2023-30800 vulnerability in MikroTik RouterOS.

Vulnerability Description

The heap memory corruption flaw in MikroTik RouterOS version 6 can be exploited by remote, unauthenticated attackers through specially crafted HTTP requests. This manipulation results in the destabilization of the web server.

Affected Systems and Versions

The vulnerability impacts MikroTik RouterOS version 6. Notably, versions 6.49.9 and 6.48.8 are affected, while version 6.49.10 resolves the issue. RouterOS version 7 remains unaffected by this specific vulnerability.

Exploitation Mechanism

Remote attackers can trigger the heap memory corruption flaw in MikroTik RouterOS version 6 by sending malicious HTTP requests. The corrupted memory instances subsequently lead to the crash of the web interface, disrupting normal server operation.

Mitigation and Prevention

Learn about the necessary steps to mitigate the risks associated with CVE-2023-30800 and enhance the overall security posture.

Immediate Steps to Take

Users are advised to upgrade to RouterOS version 6.49.10 to address the vulnerability and prevent potential exploitation. Additionally, implementing network controls to restrict unauthorized access can mitigate the risk of heap memory corruption.

Long-Term Security Practices

Regular security assessments, network monitoring, and timely software updates are essential for maintaining a secure infrastructure. Employing strong access control measures and conducting security awareness training can enhance overall resilience.

Patching and Updates

Keep software and firmware up to date to ensure the latest security patches are applied. Regularly check for vendor-supplied updates and follow best practices for secure configuration management to reduce vulnerability exposure.