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Current Result Document :

ÇѱÛÁ¦¸ñ(Korean Title) °ø°Ý ŽÁö ÀÓ°è°ªÀ» °í·ÁÇÑ ºñ»óűâ¹Ý ¹æÈ­º® Á¤Ã¥ Ãß·Ð ¹æ¹ý
¿µ¹®Á¦¸ñ(English Title) An Inference Method of Stateless Firewall Policy Considering Attack Detection Threshold
ÀúÀÚ(Author) ±èÇö¿ì   ±Çµ¿¿ì   ÁÖÈ«Åà  Hyeonwoo Kim   Dongwoo Kwon   Hongtaek Ju  
¿ø¹®¼ö·Ïó(Citation) VOL 16 NO. 02 PP. 0027 ~ 0040 (2015. 04)
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(Korean Abstract)
¹æÈ­º® Á¤Ã¥ Ãß·ÐÀº »çÀüÁö½Ä ¾øÀÌ Æ¯Á¤ ³×Æ®¿öÅ©·ÎÀÇ ´Éµ¿Àû ŽÁö±â¹ýÀ» ÀÌ¿ëÇÑ ÀÀ´ä ÆÐŶ ºÐ¼®À¸·Î ¹æÈ­º® Á¤Ã¥À» ¹ß°ßÇÑ´Ù. ÇÏÁö¸¸, ¿ÜºÎ¿¡¼­ ƯÁ¤ ³×Æ®¿öÅ©·Î Ãß·Ð ÆÐŶÀ» ¾î¶»°Ô Àü¼ÛÇϴ°¡¿¡ µû¶ó ¹æÈ­º®¿¡ ¼³Á¤µÈ °ø°Ý ŽÁö ÀÓ°è°ª¿¡ ÀÇÇØ ³×Æ®¿öÅ© °ø°ÝÀ¸·Î ŽÁöµÇ±â ¶§¹®¿¡ ¹«ºÐº°ÇÏ°Ô ÆÐŶÀ» Àü¼ÛÇÏ´Â ¹æ¹ýÀº À¯È¿ÇÏÁö ¾Ê´Ù. º» ³í¹®¿¡¼­´Â ¹æÈ­º®ÀÇ °ø°Ý ŽÁö ÀÓ°è°ªÀ» °í·ÁÇÏ¿© ³×Æ®¿öÅ© °ø°ÝÀ¸·Î ŽÁöµÇÁö ¾Ê´Â ¹üÀ§ ³»¿¡¼­ Ãß·Ð º¯¼ö¸¦ È°¿ëÇÑ ÆÐŶ Àü¼Û ¾Ë°í¸®ÁòÀ» Á¦¾ÈÇÑ´Ù. ±×¸®°í Á¦¾ÈÇÏ´Â ¾Ë°í¸®Áò¿¡ ÀÇÇØ Àü¼ÛµÇ´Â ÆÐŶÀÌ ³×Æ®¿öÅ© °ø°ÝÀ¸·Î ŽÁöµÇ´Â°¡¸¦ °ËÁõÇÑ´Ù. ¸¶Áö¸·À¸·Î ¿ì¸®´Â ½ÇÁ¦ ¹æÈ­º® Á¤Ã¥°ú Ãß·ÐµÈ Á¤Ã¥À» ºñ±³ÇÏ¿© Á¦¾ÈµÈ ¾Ë°í¸®ÁòÀÇ Á¤È®¼ºÀ» °ËÁõÇÑ °á°ú¸¦ Á¦½ÃÇÑ´Ù.
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(English Abstract)
Inferring firewall policy is to discover firewall policy by analyzing response packets as results of active probing without any prior information. However, a brute-force approach for generating probing packets is unavailable because the probing packets may be regarded as attack traffic and blocked by attack detection threshold of a firewall. In this paper, we propose a firewall policy inference method using an efficient probing algorithm which considers the number of source IP addresses, maximum probing packets per second and interval size of adjacent sweep lines as inference parameters to avoid detection. We then verify whether the generated probing packets are classified as network attack patterns by a firewall, and present the result of evaluation of the correctness by comparing original firewall policy with inferred firewall policy.
Å°¿öµå(Keyword) ºñ»óűâ¹Ý ¹æÈ­º®   Á¤Ã¥ Ãß·Ð; °ø°Ý ŽÁö ÀÓ°è°ª   ´Éµ¿ ŽÁö   Ãß·Ð º¯¼ö   ½ºÀ¬ ¶óÀÎ ¾Ë°í¸®Áò   Stateless Firewall   Policy Inference   Attack Detection Threshold   Active Probing   Inference Parameters   Sweep-line Algorithm  
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