Exchange Server SSRF Vulnerability

CVE-2021-26855 is a server-side-request-forgery (SSRF) vulnerability in the Microsoft Exchange server.HTTPS connections are established to authenticate user access when exploited.

Mitigation / Precaution

We suggest you to install all required patches, and avoid untrusted connections by enclosing the Exchange server within a VPN to isolate port 443 from external connections.

Written by

Jijith Rajan

Cyber Security Engineer

His passion for staying abreast of the latest security threats and trends, coupled with his hands-on experience, allows him to actively contribute to the protection of digital assets. Jijith's dedication and enthusiasm make him a promising talent in the ever-evolving realm of cybersecurity, promising a safer digital future.