Protect Yourself from Microsoft Message Queuing Attacks

CVSScvssV3_1: 7.8

Microsoft Message Queuing, commonly known as MSMQ, is a messaging platform that allows applications on different systems to communicate asynchronously. Unfortunately, a remote code execution vulnerability has been discovered in MSMQ that could allow attackers to execute code remotely on vulnerable systems.

The vulnerability, tracked as CVE-2023-36593, has a CVSS score of 7.8 out of 10 indicating that it is a highly critical issue. It can be exploited remotely without any authentication, allowing an attacker to execute arbitrary code with SYSTEM privileges.

An attacker could craft a specially crafted message and send it to a target MSMQ queue on a targeted machine. If the vulnerable version of MSMQ is installed, this message would be processed and the embedded malicious code executed without the user’s knowledge. This could allow the attacker to install programs, view, change or delete data, or create new accounts with full admin access rights on the machine.

The best way to protect yourself is to install the latest updates for your version of Windows as soon as possible. Microsoft has released patches to address this vulnerability, so ensuring your system and all programs are updated will help prevent exploitation. You should also avoid opening suspicious messages or attachments even on an updated system in case other vulnerabilities are discovered later.