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»ó¼¼¼³¸í ÇØ´ç È£½ºÆ®´Â GNU Bash 4.3 bash43-025 ÀÌÀü ¹öÀüÀÌ ¼³Ä¡µÇ¾î ÀÖÀ¸¸ç, ¸í·É ½ÇÇà Ãë¾àÁ¡ÀÌ Á¸ÀçÇÑ´Ù.
GNU Bash(Bourne-again shell)´Â º» ¼Ð(Bounme shell/sh)À» ´ëüÇÏ´Â À¯´Ð½º ¼ÐÀÌ´Ù. ÀÌ ¼ÐÀº GNU ¿î¿µÃ¼Á¦ ½Ã½ºÅÛÀ» À§ÇÑ ¼Ð·Î ³Î¸® ¹èÆ÷µÇ¾ú°í, ¸®´ª½º¿Í Mac OS XÀÇ ±âº» ¼ÐÀÌ´Ù.
Bash ¼ÐÀº º¯¼ö¿Í ÇÔ¼ö¸¦ ´Ù¸¥ Bash ÀνºÅϽº¿¡ ÀͽºÆ÷Æà ÇÒ ¼ö ÀÖ°í, ÇöÀç ¹öÀüÀÇ Bash´Â ȯ°æ º¯¼ö¿¡ ÇÔ¼ö¸¦ Á¤ÀÇÇÒ ¼ö ÀÖ´Ù.
ÀÌ Ãë¾àÁ¡Àº Bash¿¡¼­ ȯ°æ º¯¼ö¸¦ ÀûÀýÈ÷ ó¸®ÇÏÁö ¸øÇϱ⠶§¹®¿¡ ¹ß»ýÇÑ´Ù. °ø°ÝÀÚ´Â DHCP Ŭ¶óÀ̾ðÆ®, Apache HTTP ¼­¹öÀÇ mod_cgi, mod_cgid ¸ðµâ, OpenSSH sshd¸¦ ÅëÇÏ¿© ÆÄÀÏÀ» ¾²°Å³ª ¸í·ÉÀ» ½ÇÇàÇÒ ¼ö ÀÖ´Ù.

* ¾Ë¸²: ÀÌ Á¡°ËÇ׸ñÀº Á¡°ËÇϱâ À§ÇÑ È£½ºÆ®·Î ·Î±×ÀÎ ÇÒ ¼ö ÀÖ´Â °ü¸®ÀÚ ±ÇÇÑÀ» °¡Áø °èÁ¤À» ÇÊ¿ä·Î ÇÑ´Ù. ÀÌ·¯ÇÑ Á¶°ÇÀÌ ¾ÈµÇ¸é Á¡°ËÀ» ¼öÇàÇÒ ¼ö ¾øÀ¸¸ç ¸ðµç Ãë¾àÇÑ È£½ºÆ®µé¿¡ ´ëÇؼ­ °ÅÁþ À½¼º¹ÝÀÀ(False Negative)À» º¸ÀÏ ¼ö ÀÖ´Ù.

* Âü°í »çÀÌÆ®:
http://www.oracle.com/technetwork/topics/security/alert-cve-2014-7169-2303276.html
https://www.digitalocean.com/community/tutorials/how-to-protect-your-server-against-the-shellshock-bash-vulnerability

* ¿µÇâÀ» ¹Þ´Â Ç÷§Æû:
GNU Bash 3.0
GNU Bash 3.1
GNU Bash 3.2
GNU Bash 4.0
GNU Bash 4.1
GNU Bash 4.2
GNU Bash 4.3
ÇØ°áÃ¥ <CentOS, RedHat, Fedora>
´ÙÀ½ ¸í·ÉÀ» ÅëÇØ bash¸¦ ¾÷µ¥ÀÌÆ® ÇÑ´Ù.
sudo yum update bash

<Ubuntu, Debian>
´ÙÀ½ ¸í·ÉÀ» ÅëÇØ bash¸¦ ¾÷µ¥ÀÌÆ® ÇÑ´Ù.
sudo apt-get install bash

<Solaris>
º¥´õ»ç¿¡ ¹®ÀÇÇÏ¿© ÀûÀýÇÑ ¾÷µ¥ÀÌÆ®¸¦ ¼³Ä¡ÇÑ´Ù.
http://www.oracle.com/technetwork/topics/security/alert-cve-2014-7169-2303276.html
°ü·Ã URL CVE-2014-6271,CVE-2014-7169 (CVE)
°ü·Ã URL 70137 (SecurityFocus)
°ü·Ã URL (ISS)