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Ãë¾àÁ¡ID 21048
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ÇÁ·ÎÅäÄÝ TCP
ºÐ·ù CGI
»ó¼¼¼³¸í ÇØ´ç À¥¼­¹ö¿¡ "guestbook.cgi" CGI°¡ ¼³Ä¡µÇ¾î ÀÖ´Ù. ÀÌ CGI´Â ¿ÜºÎ¿¡¼­ http µ¥¸óÀÇ ±ÇÇÑÀ¸·Î ¼­¹ö»óÀÇ ÀÓÀÇÀÇ ¸í·ÉµéÀ» ¼öÇà½Ãų ¼ö ÀÖ°Ô ÇØÁÖ´Â Àß ¾Ë·ÁÁø º¸¾ÈÃë¾àÁ¡À» °¡Áö°í ÀÖ´Ù. ÀÌ Ãë¾àÁ¡Àº Selena SolÀÇ guestbook¿¡ Á¸ÀçÇÑ´Ù.

* Âü°í »çÀÌÆ®:
http://www.iss.net/security_center/static/321.php
http://www.extropia.com/scripts/guestbook_security.html

* ¿µÇâÀ» ¹Þ´Â Ç÷§Æû:
Web Server
ÇØ°áÃ¥ ÇÊ¿äÇÏÁö ¾Ê´Ù¸é À¥¼­¹ö³»ÀÇ ±× CGI¸¦ Á¦°ÅÇÑ´Ù. ±×·¸Áö ¾ÊÀ¸¸é ´ÙÀ½°ú °°ÀÌ fixÇØ¼­ »ç¿ëÇØ¾ß ÇÑ´Ù.

¹æ¹ý A: guestbook.setup ÆÄÀÏÀ» ¼öÁ¤ÇÏ¿© ÄÞ¸¶·Î ±¸ºÐµÈ @bad_words º¯¼ö¿¡ exec¸¦ µ¡ºÙ¿©¾ß ÇÑ´Ù.

¹æ¹ý B: guestbook.setup ÆÄÀÏÀ» ¼öÁ¤ÇÏ¿© @allow_html º¯¼ö¸¦ no·Î ¼ÂÇØ¾ß ÇÑ´Ù.
°ü·Ã URL CVE-1999-0237 (CVE)
°ü·Ã URL (SecurityFocus)
°ü·Ã URL (ISS)