Shellshock
Shellshock is a computer vulnerability that was discovered in 2014. It allows attackers to remotely execute code on servers that are running certain versions of the Bash shell. Bash is a command-line interface that is used on many Unix and Linux systems.
A vulnerability in the way Bash handles environment variables allows remote attackers to exploit the command-line interface, taking over the system or obtaining sensitive information. In other words, an attacker can execute arbitrary commands on a machine that is vulnerable to Shellshock.
Shellshock can affect a wide range of devices and servers, including routers, web servers, and even mobile devices. It is considered a serious threat because it can be exploited remotely and without any authentication.
To protect yourself from Shellshock, make sure your system is up-to-date with the latest security patches. We recommend that you check with your system administrator or your device manufacturer and apply the necessary updates.
In summary, Shellshock is a security vulnerability that allows attackers to remotely execute code on vulnerable systems. It is important to keep your systems up-to-date to prevent being affected by this vulnerability.