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docs: Update shellshock.md

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MarketingYeti 2021-02-26 10:31:44 -05:00 committed by Mike Salvatore
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docs/content/reference/exploiters/shellshock.md
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@ -4,7 +4,8 @@ date: 2020-07-14T08:41:32+03:00
draft: false
tags: ["exploit", "linux"]
---
### Description
CVE-2014-6271, based on [logic in NCC group's GitHub](https://github.com/nccgroup/shocker/blob/master/shocker.py).
This exploit, CVE-2014-6271, is based on the [logic in NCC group's GitHub](https://github.com/nccgroup/shocker/blob/master/shocker.py).
> GNU Bash through 4.3 processes trailing strings after function definitions in the values of environment variables, which allows remote attackers to execute arbitrary code via a crafted environment, as demonstrated by vectors involving the ForceCommand feature in OpenSSH sshd, the mod_cgi and mod_cgid modules in the Apache HTTP Server, scripts executed by unspecified DHCP clients, and other situations in which setting the environment occurs across a privilege boundary from Bash execution, aka "ShellShock."
> In GNU Bash (through 4.3), processes trailing strings after function definitions in the values of environment variables allow remote attackers to execute arbitrary code via a crafted environment. This is demonstrated by vectors involving the ForceCommand feature in OpenSSH sshd, the mod_cgi and mod_cgid modules in the Apache HTTP Server, scripts executed by unspecified DHCP clients and other situations in which setting the environment occurs across a privilege boundary from Bash execution, AKA "ShellShock."