The web server must not be a proxy server.
Severity | Group ID | Group Title | Version | Rule ID | Date | STIG Version |
|---|---|---|---|---|---|---|
| medium | V-206376 | SRG-APP-000141 | SRG-APP-000141-WSR-000076 | SV-206376r960963_rule | 2025-09-10 | 4 |
Description
A web server should be primarily a web server or a proxy server but not both, for the same reasons that other multi-use servers are not recommended. Scanning for web servers that will also proxy requests into an otherwise protected network is a very common attack making the attack anonymous.
ℹ️ Check
Review the web server documentation and deployed configuration to determine if the web server is also a proxy server.
If the web server is also acting as a proxy server, this is a finding.
✔️ Fix
Uninstall any proxy services, modules, and libraries that are used by the web server to act as a proxy server.
Verify all configuration changes are made to assure the web server is no longer acting as a proxy server in any manner.