An attacker can manipulate flow-control windows to force the server to allocate an excessive number of threads to a single 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. apache httpd 2.4.18 exploit
This is a memory corruption vulnerability in the Apache Scoreboard , a shared memory area used by the main process (running as root) to track child processes (running with low privileges like www-data ).
Released in 2015, is an older version of the Apache web server that contains several significant security vulnerabilities. Because it predates numerous critical patches, systems still running this version are highly susceptible to exploits ranging from Denial of Service (DoS) to Local Root Privilege Escalation . An attacker can manipulate flow-control windows to force
Perhaps the most dangerous exploit for version 2.4.18 is , also known as "CARPE (DIEM)".
Apache 2.4.18 was among the first versions to support the protocol via mod_http2 . However, early implementations lacked sufficient resource limits. Because it predates numerous critical patches, systems still
The server failed to limit the number of simultaneous stream workers for a single HTTP/2 connection.