Protecting Windows Named Pipes from Local Abuse
🔒 Named pipes are commonly used for interprocess communication on Windows but should never be treated as implicitly trusted. Developers often assume local IPC is safe, yet different users, sessions, and privilege levels may run on the same machine. Servers must verify client identities, apply explicit DACLs, authorize each operation, and validate message contents to avoid privilege escalation, confused-deputy issues, and denial-of-service. Remote accessibility and predictable pipe names further increase risk, so implement strict limits, timeouts, and local-only protections.
