An attacker sends an HTTP request with a crafted Range header containing multiple, overlapping byte ranges (e.g., Range: bytes=0-,5-0,5-1... ).
Apache HTTP Server 2.4.48 and earlier
This command adds an entry to inetd that listens on port 2222 and spawns a shell as root whenever a connection is made. The warning from that era remains true today: , because many so‑called "Apache exploits" are nothing more than backdoors disguised as security tools. apache httpd 2222 exploit
Path Traversal and Remote Code Execution (RCE) vulnerabilities.
Last updated: 2025 | This article is for educational and defensive security purposes. No actual exploits are disclosed or promoted. An attacker sends an HTTP request with a
These addressed format string errors and scoreboard crashes that could be used for Denial of Service (DoS) attacks. Known Exploits Affecting 2.2.22
While not specific to version 2.2.22 but rather to OpenSSL, a critical vulnerability like Heartbleed (CVE-2014-0160) impacted many web servers, including Apache, by allowing attackers to read sensitive data from the server's memory. The warning from that era remains true today:
Below is a drafted technical blog post detailing the risks, common exploits associated with that era of Apache 2.2, and how to remediate them.
Apache HTTP Server 2.4.0 through 2.4.55