CVE-2000-0770

This bug is like leaving the door to a locked room slightly unlocked because the hallway permission is set too loosely. If your IIS server’s “parent folder” permissions are more permissive than you intended, a remote attacker can potentially reach files that your website was supposed to keep hidden. In a small business, that could mean exposure of internal documents, configuration files, or other restricted content.

This matters if you run Microsoft Internet Information Services (IIS) 4.0 or 5.0 as your web server. It’s most relevant for servers reachable over the network (especially if they’re publicly accessible), because the weakness can be triggered without login or user interaction.

The key risk condition is whether the protected files you host are under parent folders that have less restrictive permissions than the files themselves.

Treat this as AMBER: there is enough risk to act, particularly for internet-facing IIS 4.0/5.0 servers with misconfigured folder permissions. Security interest is rising, and the issue can be attempted remotely without authentication, so you should verify your exposure and tighten permissions promptly.

No confirmed exploitation entry is listed in the provided findings, so this is not an “ignore until after lunch” situation—but it’s also not the highest emergency level.