Tag
proxylogon
Safeguard articles tagged "proxylogon" — guides, analysis, and best practices for software supply chain and application security.
3 articles
Security Guides
OWASP A10: Server-Side Request Forgery (SSRF) — A Deep-Dive Guide
Server-Side Request Forgery ranks #10 in the OWASP Top 10 (2021). A deep dive into cloud metadata theft, real CVEs like ProxyLogon, and how to stop SSRF in 2026.
Jul 8, 20267 min read
Vulnerability Analysis
ProxyLogon (CVE-2021-26855) Explained: The Exchange SSRF That Opened a Pre-Auth Door
CVE-2021-26855, ProxyLogon, is a server-side request forgery in Microsoft Exchange that let unauthenticated attackers impersonate the server — the first link in a chain to full remote code execution.
Jul 1, 20265 min read
Vulnerability Analysis
ProxyLogon Microsoft Exchange RCE chain (CVE-2021-26855)
A deep dive into ProxyLogon (CVE-2021-26855 and chain): the unauthenticated Exchange RCE that enabled HAFNIUM and mass ransomware attacks.
Jan 17, 20267 min read