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Exploit | Apache Httpd 2.4.18

A malicious script (e.g., PHP or CGI) running with low privileges can modify the scoreboard to point to a malicious function. When the Apache server undergoes a graceful restart —typically triggered daily by automated tasks like logrotate —the parent root process executes the malicious code, granting the attacker full root access to the server. Impact: Complete server takeover. 2. HTTP/2 Denial of Service (CVE-2016-1546)

Perhaps the most dangerous exploit for version 2.4.18 is , also known as "CARPE (DIEM)".

The server failed to limit the number of simultaneous stream workers for a single HTTP/2 connection.

This results in a "stream-processing outage," effectively crashing the web service for all other users. 3. Padding Oracle Attack (CVE-2016-0736)

The following article details the primary vulnerabilities, how they are exploited, and how to secure your environment.

Systems using the mod_session_crypto module for managing user sessions are vulnerable to a cryptographic exploit. Apache HTTP Server 2.4 vulnerabilities