English
¢¸¢· µÚ·Î
Ãë¾àÁ¡ID 29122
À§Çèµµ 40
Æ÷Æ® 161
ÇÁ·ÎÅäÄÝ UDP
ºÐ·ù CISCO
»ó¼¼¼³¸í CISCO IOSÀÇ ¹öÀü Á¤º¸¿¡ µû¸£¸é ÇØ´ç ¼ÒÇÁÆ®¿þ¾î¿¡´Â MPLS ÆÐŶ 󸮰úÁ¤¿¡ ÀÖ´Â ¼­ºñ½º °ÅºÎ Ãë¾àÁ¡ÀÌ Á¸ÀçÇÑ´Ù(CISCO ¹ö±× ID CSCeb56909). MPLS(Multi Protocol Label Switching)´Â °èÃþ-2 Á¤º¸¸¦ °èÃþ-3·Î ÅëÇÕÇØ ÁÖ´Â Á¦Á¶»ç µ¶¸³ÀûÀÎ ÇÁ·ÎÅäÄÝÀÌ´Ù. MPLS 󸮸¦ Áö¿øÇÏ´Â CISCO IOSÀÇ 12.1T, 12.2, 12.2T, 12.3 and 12.3T ¹öÀüµéÀº Multi Protocol Label Switching (MPLS) ÆÐŶÀÇ Ã³¸®°úÁ¤¿¡¼­ ¿¹¿Üó¸® ¿À·ù·Î ÀÎÇÏ¿© ¼­ºñ½º °ÅºÎ °ø°Ý Ãë¾àÁ¡¿¡ Ãë¾àÇÏ´Ù. ¿ø°ÝÁöÀÇ °ø°ÝÀÚ´Â ´ë»ó ÀåÄ¡ÀÇ MPLS ÀÎÅÍÆäÀ̽º·Î Àß Á¶ÀÛµÈ ÆÐŶÀ» º¸³» Àåºñ¸¦ Àç½ÃÀÛ½Ãų ¼ö ÀÖ´Ù. MPLS¸¦ Áö¿øÇÏ´Â Àåºñ´Â MPLS°¡ ±¸¼ºµÇ¾î ÀÖÁö ¾ÊÀ» ¶§¿¡µµ Ãë¾àÇÏ´Ù.

* ¾Ë¸²: ÀÌ Á¡°ËÇ׸ñÀº ÀÌ Ãë¾àÁ¡À» Á¡°ËÇϱâ À§ÇØ ÇØ´ç ½Ã½ºÅÛÀÇ ¹öÀüÁ¤º¸¸¸À» È®ÀÎÇÑ´Ù. µû¶ó¼­ °ÅÁþ ¾ç¼º¹ÝÀÀ(False Positive)À» º¸ÀÏ ¼ö ÀÖ´Ù. ÀÌ Á¡°ËÇ׸ñÀº ¶ÇÇÑ ¹öÀüÁ¤º¸¸¦ ¼öÁýÇϱâ À§ÇÏ¿© Àб⠱ÇÇÑÀÇ SNMP Community ¹®ÀÚ¿­À» ÇÊ¿ä·Î ÇÑ´Ù. À̸¦ À§Çؼ­´Â Á¤Ã¥ ÆíÁý±â¿¡¼­ Á¡°ËÇ׸ñ "snmp/guessable/r"¿¡ Ÿ´çÇÑ Community ¹®ÀÚ¿­À» Ãß°¡ÇÏ¿©¾ß ÇÑ´Ù.

* Âü°í »çÀÌÆ®:
http://www.cisco.com/warp/public/707/cisco-sa-20050126-les.shtml
http://www.kb.cert.org/vuls/id/583638
http://www.us-cert.gov/cas/techalerts/TA05-026A.html
http://securitytracker.com/alerts/2005/Jan/1013015.html

* ¿µÇâÀ» ¹Þ´Â Ç÷§Æû:
Cisco IOS 12.1T, 12.2, 12.2T, 12.3 and 12.3T versions
Cisco ¶ó¿ìÅÍ ½Ã¸®Áî: 2600, 2800, 3600, 3700, 3800, 4500 ±×¸®°í 4700
Cisco Access Server: 5300, 5350 ±×¸®°í 5400
ÇØ°áÃ¥ ´ÙÀ½ Cisco º¸¾È ±Ç°í¾È(Crafted Packet Causes Reload on Cisco Routers)ÀÇ "Software Versions and Fixes" ¸¦ ÂüÁ¶ÇÏ¿© ¹®Á¦°¡ ÇØ°áµÈ ¹öÀüÀ¸·Î ¾÷±×·¹À̵å ÇÏ¿©¾ß ÇÑ´Ù:
http://www.cisco.com/warp/public/707/cisco-sa-20050126-les.shtml

¾÷±×·¹À̵åµéÀº Cisco À¥ »çÀÌÆ®ÀÎ http://www.cisco.com ¿¡ ÀÖ´Â Software Center¸¦ ÅëÇØ ±¸ÇÒ ¼ö ÀÖ´Ù.
°ü·Ã URL CVE-2005-0197 (CVE)
°ü·Ã URL 12369 (SecurityFocus)
°ü·Ã URL 19071 (ISS)