CVE-2019-16160 : What You Need to Know

Remote unauthenticated attackers can cause the service of the MikroTik RouterOS to crash by exploiting an integer underflow in the SMB server. This vulnerability exists in versions of MikroTik RouterOS prior to 6.45.5.

Understanding CVE-2019-16160

An integer underflow vulnerability in the SMB server of MikroTik RouterOS allows remote unauthenticated attackers to crash the service.

What is CVE-2019-16160?

CVE-2019-16160 is a vulnerability in MikroTik RouterOS that enables remote unauthenticated attackers to crash the service by exploiting an integer underflow in the SMB server.

The Impact of CVE-2019-16160

This vulnerability can be exploited by remote attackers to disrupt the service of MikroTik RouterOS, potentially leading to denial of service.

Technical Details of CVE-2019-16160

The technical details of the CVE-2019-16160 vulnerability are as follows:

Vulnerability Description

An integer underflow in the SMB server of MikroTik RouterOS before version 6.45.5

Affected Systems and Versions

Versions of MikroTik RouterOS prior to 6.45.5

Exploitation Mechanism

Remote unauthenticated attackers can exploit the integer underflow in the SMB server to crash the service

Mitigation and Prevention

To mitigate the CVE-2019-16160 vulnerability, consider the following steps:

Immediate Steps to Take

Update MikroTik RouterOS to version 6.45.5 or later
Implement firewall rules to restrict access to the SMB server

Long-Term Security Practices

Regularly monitor for security advisories and updates from MikroTik
Conduct security assessments to identify and address vulnerabilities proactively

Patching and Updates

Apply patches and updates provided by MikroTik to address the CVE-2019-16160 vulnerability