Microsoft Exchange Powershell Remoting Deserialization leading to RCE (CVE-2023-21707)

👤 by testanull

While analyzing CVE-2022-41082, also known as Proxy Not Shell, researcher discovered CVE-2023-21707 vulnerability which he has detailed in this blog.
The vulnerability allows a privileged user to trigger RCE during a deserialization of untrusted data.

📝 Contents:
● Introduction
● The new variant
● Payload delivery
● Demo
● References

https://starlabs.sg/blog/2023/04-microsoft-exchange-powershell-remoting-deserialization-leading-to-rce-cve-2023-21707/