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Ãë¾àÁ¡ID 23214
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Æ÷Æ® 139
ÇÁ·ÎÅäÄÝ TCP
ºÐ·ù Samba
»ó¼¼¼³¸í ÇØ´ç È£½ºÆ®¿¡´Â 3.0.30 ÀÌÀüÀÇ Samba ¼­¹öÀÇ ¾î¶² ¹öÀüÀÌ °¡µ¿ ÁßÀÎ °ÍÀ¸·Î ³ªÅ¸³­´Ù. Samba´Â SMB/CIFS Ŭ¶óÀ̾ðÆ®µé¿¡°Ô ¾çÁúÀÇ ÆÄÀÏ ¹× ÇÁ¸°Æ® ¼­ºñ½ºµéÀ» Á¦°øÇØ ÁÖ´Â °ø°³ ¼Ò½º ±â¹ÝÀÇ ¹«·á ¼ÒÇÁÆ®¿þ¾îÀÌ´Ù. Samba 3.0.30 ÀÌÀüÀÇ ¹öÀüµéÀº Ŭ¶óÀ̾ðÆ® ÄÁÅؽºÆ®(client context)·Î ¼ö½ÅÇÑ SMB ÆÐŶµéÀ» ÆĽÌ(parsing)ÇÒ ¶§ 'lib/util_sock.c' ÆÄÀÏ¿¡ ÀÖ´Â 'receive_smb_raw' ÇÔ¼ö ³»ÀÇ 'nmbd'¿¡¼­ÀÇ ºÎÀûÀýÇÑ ¹öÆÛ ±æÀÌ °Ë»ç·Î ÀÎÇÏ¿©, Èü(heap) ±â¹ÝÀÇ ¹öÆÛ ¿À¹öÇ÷οì Ãë¾àÁ¡¿¡ Ãë¾àÇÏ´Ù. ¾î¶² »ç¿ëÀÚ¸¦ ¼Ó¿© ("smb://" ¸µÅ©¸¦ Ŭ¸¯ÇÔÀ¸·Î½á) ¾ÇÀÇÀûÀÎ ¼­¹ö·Î Á¢¼ÓÇÏ°Ô Çϰųª ȤÀº ·ÎÄà ȤÀº µµ¸ÞÀÎ ºê¶ó¿ìÀú·Î¼­ ±¸¼ºµÈ 'nmbd' ¼­¹ö·Î Àß Á¶ÀÛµÈ ÆÐŶµéÀ» º¸³¿À¸·Î½á, ¿ø°ÝÁöÀÇ °ø°ÝÀÚ´Â ½Ã½ºÅÛ »ó¿¡ ÀÓÀÇÀÇ Äڵ带 ½ÇÇàÇϰųª ȤÀº ¿µÇâÀ» ¹Þ´Â ¼­ºñ½º¸¦ Å©·¡½¬ ½Ãų ¼ö ÀÖ´Ù.

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

* Âü°í »çÀÌÆ®:
http://www.samba.org/samba/security/CVE-2008-1105.html
http://www.securityfocus.com/archive/1/archive/1/492683/100/0/threaded
http://securitytracker.com/id?1020123
http://secunia.com/advisories/30228

* ¿µÇâÀ» ¹Þ´Â Ç÷§Æû:
Samba Project, Samba 3.0.30 ÀÌÀüÀÇ ¹öÀüµé
Linux Any version
Unix Any version
ÇØ°áÃ¥ Samba À¥ »çÀÌÆ®ÀÎ http://us1.samba.org/samba/ ¿¡¼­ ±¸ÇÒ ¼ö ÀÖ´Â SambaÀÇ °¡Àå ÃֽŠ¹öÀü(3.0.30 ȤÀº ÀÌÈÄ)À¸·Î ¾÷±×·¹À̵å ÇÏ¿©¾ß ÇÑ´Ù.
°ü·Ã URL CVE-2008-1105 (CVE)
°ü·Ã URL 29404 (SecurityFocus)
°ü·Ã URL 42664 (ISS)