error. Because the error response includes the original (large) header, it can lead to Information Disclosure , such as exposing sensitive session cookies. Request Smuggling (CVE-2022-22720):
If port 2222 leads to a web-based management tool, enforce Multi-Factor Authentication (MFA) and strong password policies. Conclusion apache httpd 2222 exploit
While version 2.2.22 is ancient—having reached —it remains a common target in the following contexts: Conclusion While version 2
: Apache version 2.2.21 and earlier did not properly sanitize long or malformed HTTP headers when generating "400 Bad Request" error pages. The Takeover
– If you need Apache on 2222 for backend purposes, bind to 127.0.0.1:2222 in httpd.conf :
: Because the server doesn't have a custom error page set up, it tries to be "helpful" by reflecting the original, broken header back to the user to show what went wrong. In doing so, it accidentally prints out the values of those secure cookies right into the error message. The Takeover