Shellshock attack write-up: Letsdefend challenge.

What is Shellshock?

A 30 year old vulnerability in the Bash command-line interface shell called “Shellshock” was identified as a serious threat in 2014. Shellshock is still a threat to corporate world.

Shellshock is a critical vulnerability due to the escalated privileges afforded to attackers, which allow them to compromise systems at will. Although the ShellShock vulnerability, CVE-2014–6271, was discovered in 2014, it is known to still exist on a large number of servers in the world. The …

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