Security Researcher Detected: You might have ended up here because your site vulnerability scanner found something interesting. Hi! I'm a security engineer and I'm having a good time interacting with the people and bots that are interested in information security.
You will hopefully find this site is well-secured and I'm not interested in being hacked. I'm interested in learning about how people try to hack me, though.
What is this endpoint?
owa/auth/x.js
Microsoft Outlook Web Access
What an attacker could do
This OWA static auth JavaScript asset carries build/version markers that let scanners fingerprint the exact Exchange cumulative update level to choose a matching ProxyLogon/ProxyShell or other CVE exploit.
How to defend it
Keep Exchange patched so fingerprinting yields no exploitable version, minimize version disclosure in static assets, and restrict OWA exposure behind a gateway or VPN.
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Want to dive deeper into this topic? Check out the official documentation.
Read Official Documentation