Ãë¾àÁ¡ID |
29149 |
À§Çèµµ |
30 |
Æ÷Æ® |
22 |
ÇÁ·ÎÅäÄÝ |
TCP |
ºÐ·ù |
CISCO |
»ó¼¼¼³¸í |
ÇØ´ç CISCO IOS´Â VTY Á¢¼Ó ½Ã Telnet Á¢¼ÓÀ» Çã¿ëÇÑ´Ù. ¿ø°Ý Á¢¼Ó ½Ã Æò¹®À¸·Î Á¤º¸°¡ Àü¼ÛµÇ´Â TelnetÀº Æнº¿öµå ÃßÃø °ø°Ý(Password Guessing) ¹× ½º´ÏÇÎ °ø°Ý¿¡ Ãë¾àÇϹǷΠSSH ÇÁ·ÎÅäÄÝ »ç¿ë¸¸À» ±ÇÀåÇÑ´Ù.
* ¿µÇâÀ» ¹Þ´Â Ç÷§Æû: CISCO IOS |
ÇØ°áÃ¥ |
´ÙÀ½°ú °°ÀÌ Telnet »ç¿ëÀ» Á¦ÇÑÇÑ´Ù. Router# config terminal Router(config)# line vty 0 4 Router(config-line)# transport input ssh <- SSH¸¸ »ç¿ë
¸¸ÀÏ access-list¿¡ ´ÙÀ½°ú °°ÀÌ TelnetÀ» Çã¿ëÇÑ´Ù¸é ÇØ´ç access-list¸¦ »èÁ¦ÇÑ´Ù. ex) access-list 101 permit tcp 10.10.38.0 0.0.0.255 host 10.10.38.1 eq telnet (or 23)
Router# config terminal Router(config)# no access-list 101 |
°ü·Ã URL |
(CVE) |
°ü·Ã URL |
(SecurityFocus) |
°ü·Ã URL |
(ISS) |
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