Microsoft MSMQ - Remote Code Execution (CVE-2023-21554)

Microsoft Message Queuing service is vulnerable to CVE-2023-21554, a Remote Code Execution vulnerability. The CVE-2023-21554 vulnerability allows an attacker to potentially execute code remotely and without authorization by reaching the TCP port 1801. In other words, an attacker could gain control of the process through just one packet to the 1801/tcp port with the exploit, triggering the vulnerability.

The risk exists that a remote unauthenticated attacker can fully compromise the server in order to steal confidential information, install ransomware, or pivot to the internal network.

Sniper can gain unauthenticated Remote Code Execution on the target system and extract multiple artefacts as evidence.

Upgrade the MSMQ to the latest version.

https://nvd.nist.gov/vuln/detail/CVE-2023-21554
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-21554