Wikipedia

Shellshock (software bug)

This is an old revision of this page, as edited by Edprevost (talk | contribs) at 18:35, 25 September 2014. The present address (URL) is a permanent link to this revision, which may differ significantly from the current revision.

BASH Security Vulnerability

A serious security vulnerability in BASH was publicly disclosed on 2014-09-24, which was also the anniversary of Season 1 Episode 1 7 years prior of The Big Bang Theory.

Also referred to as:

  • Bash
  • Bashbug
  • Bashbleed
  • Shellshock
  • Bashpocalypse
  • Bashole
  • Badbash

Various Logos


Attack Details

From NIST "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." http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2014-7169


Resources

NIST CVE: http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2014-7169
Troy Hunt: http://www.troyhunt.com/2014/09/everything-you-need-to-know-about.html
Kenn White: https://twitter.com/kennwhite/status/515160638704738304
MalwareMustDie: https://twitter.com/MalwareMustDie/status/515091683843653632
Ed Prevost: http://imgur.com/gallery/VGEtZiM

Retrieved from "https://en.wikipedia.org/w/index.php?title=Shellshock_(software_bug)&oldid=627059791"