‘HTTP/2 Bomb’ Exploit Knocks Web Servers Offline in Seconds
Summary
A new exploit targets the default HTTP/2 configuration of major web servers, chaining a compression bomb with a Slowloris-style hold attack. This combination can quickly overwhelm and take web servers offline.
IFF Assessment
This exploit allows attackers to easily disrupt web services, negatively impacting defenders' ability to maintain service availability.
Severity
The attack vector is network-based and can be launched remotely without authentication. The impact is high, as it can lead to a complete denial of service for web servers, and exploitability is considered straightforward due to default configurations.
Defender Context
Defenders need to be aware of this HTTP/2 vulnerability and ensure their web servers are not using default configurations that are susceptible to this combined attack. Regularly updating and hardening web server configurations is crucial to prevent denial-of-service incidents.