Ãë¾àÁ¡ID |
14046 |
À§Çèµµ |
30 |
Æ÷Æ® |
22 |
ÇÁ·ÎÅäÄÝ |
TCP |
ºÐ·ù |
SSH |
»ó¼¼¼³¸í |
OpenSSHÀÇ ¹è³Ê Á¤º¸¿¡ µû¸£¸é ÇØ´ç ¼¹ö¿¡´Â GSSAPI ´ÙÁß Ãë¾àÁ¡µéÀÌ Á¸ÀçÇÑ´Ù. OpenSSHÀº Secure Shell (SSH) ÇÁ·ÎÅäÄÝÀÇ °ø°³ ¼Ò½º Ŭ¶óÀ̾ðÆ® ¹× ¼¹ö ±¸ÇöÀÌ´Ù. OpenSSH 4.4 ÀÌÀüÀÇ ¹öÀüµéÀº ´ÙÀ½°ú °°Àº ´ÙÁßÀÇ Ãë¾àÁ¡µé¿¡ Ãë¾àÇÏ´Ù:
1) ¿ø°ÝÁöÀÇ °ø°ÝÀÚ´Â GSSAPI ÀÎÁõ ½ÇÆÐ ¿À·ù¸¦ µµ¿ëÇÏ¿© ¸î¸î Ç÷§Æûµé¿¡¼ »ç¿ëÀÚ¸íµéÀÇ Å¸´ç¼ºÀ» °áÁ¤ÇÒ ¼ö ÀÖ´Ù. 2) ¿ø°ÝÁöÀÇ °ø°ÝÀÚ´Â º¸È£µÇÁö ¾ÊÀº ½Ã±×³Î 󸮱â(signal handler)¿¡ ÀÖ´Â °æÀï Á¶°Ç(race condition)À» µµ¿ëÇÏ¿© ¼ºñ½º °ÅºÎ Á¶°ÇµéÀ» ÀÏÀ¸Å³ ¼ö ÀÖ´Ù. ¿ø°ÝÁöÀÇ °ø°ÝÀÚ°¡ ÀÌ·ÐÀûÀ¸·Î´Â ÀÌ °áÇÔÀ» µµ¿ëÇÏ¿© GSSAPI ÀÎÁõÀÌ »ç¿ë ÁßÀÎ Á¶°Ç¿¡¼ ÀÓÀÇÀÇ Äڵ带 ½ÇÇà½Ãų 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.openssh.com/txt/release-4.4 http://www.kb.cert.org/vuls/id/851340 http://www.arkoon.fr/upload/alertes/36AK-2006-07-FR-1.0_FAST360_OPENSSH.pdf http://www.arkoon.fr/upload/alertes/43AK-2006-09-FR-1.0_SSL360_OPENSSH.pdf http://www.securitytracker.com/alerts/2006/Sep/1016939.html http://www.securitytracker.com/alerts/2006/Sep/1016940.html http://secunia.com/advisories/22173 http://www.securityfocus.com/archive/1/archive/1/447861/100/200/threaded
* ¿µÇâÀ» ¹Þ´Â Ç÷§Æû: OpenSSH ¹öÀü 4.3 ±×¸®°í ±× ÀÌÀüÀÇ ¹öÀüµé ¸ðµç ¿î¿µÃ¼Á¦ ¸ðµç ¹öÀü |
ÇØ°áÃ¥ |
OpenSSHÀÇ À¥ »çÀÌÆ®ÀÎ http://www.openssh.org/ ¿¡¼ ±¸ÇÒ ¼ö ÀÖ´Â OpenSSHÀÇ °¡Àå ÃֽŠ¹öÀü(4.4 ȤÀº ÀÌÈÄ)À¸·Î ¾÷±×·¹À̵å ÇÏ¿©¾ß ÇÑ´Ù. |
°ü·Ã URL |
CVE-2006-5051,CVE-2006-5052 (CVE) |
°ü·Ã URL |
20241,20245 (SecurityFocus) |
°ü·Ã URL |
29254,29255 (ISS) |
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