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Ãë¾àÁ¡ID 14044
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ÇÁ·ÎÅäÄÝ TCP
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»ó¼¼¼³¸í Dropbear SSH ¼­¹öÀÇ ¹è³Ê Á¤º¸¿¡ µû¸£¸é ÇØ´ç ¼­¹ö¿¡´Â 0.47 ÀÌÇÏÀÇ ¹öÀüµé¿¡ Á¸ÀçÇÏ´Â ¼­ºñ½º °ÅºÎ Ãë¾àÁ¡ÀÌ Á¸ÀçÇÑ´Ù. ÀÓº£µðµå(embeded) ȯ°æ¿¡ ÀûÇÕÇÑ ¼Ò±Ô¸ð Secure Shell(SSH) ¼­¹öÀÌ´Ù. Dropbear SSH Server ¹öÀü 0.47°ú ±× ÀÌÀüÀÇ ¹öÀüµéÀº 30À̶ó´Â °ªÀ¸·Î Á¤ÀÇµÈ MAX_UNAUTH_CLIENTS¸¦ ÃÊ°úÇÏ´Â ¸¹Àº ¼öÀÇ Á¢¼Ó ½ÃµµµéÀ» ÅëÇØ ¿ø°ÝÁöÀÇ °ø°ÝÀÚ°¡ ¼­ºñ½º °ÅºÎ¸¦ ÀÏÀ¸Å³ ¼ö ÀÖ°Ô ÇØ ÁØ´Ù. ¿µÇâÀ» ¹Þ´Â ¼­¹ö·Î 30°³ÀÇ µ¿½Ã Á¢¼ÓµéÀ» À¯ÁöÇÔÀ¸·Î½á, ¿ø°ÝÁöÀÇ °ø°ÝÀÚ´Â ¸ðµç ÇÕ¹ýÀûÀÎ »ç¿ëÀڵ鿡 ´ëÇÑ ¼­ºñ½º¸¦ ¼­¹ö°¡ °ÅºÎÇÒ ¼ö ÀÖ°Ô ¸¸µé ¼ö ÀÖ´Ù.

* ¾Ë¸²: ÀÌ Á¡°ËÇ׸ñÀº ÀÌ Ãë¾àÁ¡À» Á¡°ËÇϱâ À§ÇØ ÇØ´ç SSH ¼­¹öÀÇ ¹è³Ê Á¤º¸¸¸À» È®ÀÎÇÑ´Ù. µû¶ó¼­ °ÅÁþ ¾ç¼º¹ÝÀÀ(False Positive)À» º¸ÀÏ ¼ö ÀÖ´Ù.

* Âü°í »çÀÌÆ®:
http://www.securityfocus.com/archive/1/426999/30/0/threaded
http://lists.grok.org.uk/pipermail/full-disclosure/2006-March/042849.html

* ¿µÇâÀ» ¹Þ´Â Ç÷§Æû
Matt Johnston, Dropbear SSH Server ¹öÀü 0.47°ú ±× ÀÌÀüÀÇ ¹öÀüµé
Linux Any version
ÇØ°áÃ¥ Dropbear SSH Server À¥ »çÀÌÆ®ÀÎ http://matt.ucc.asn.au/dropbear/dropbear.html ¿¡¼­ ±¸ÇÒ ¼ö ÀÖ´Â Dropbear SSH ¼­¹öÀÇ °¡Àå ÃֽŠ¹öÀü(0.48 ȤÀº ÀÌÈÄ)À¸·Î ¾÷±×·¹À̵å ÇÏ¿©¾ß ÇÑ´Ù.
°ü·Ã URL CVE-2006-1206 (CVE)
°ü·Ã URL 17024 (SecurityFocus)
°ü·Ã URL 25075 (ISS)