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Îó²îÃû³Æ | RADIUSÐÒéÓÕÆÎó²î | ||
CVE ID | CVE-2024-3596 | ||
Îó²îÀàÐÍ | αÔì¡¢MITM | ·¢Ã÷ʱ¼ä | 2024-07-10 |
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RFC 2865ÏÂËùÓÐʹÓÃUDPÉϵķÇEAPÉí·ÝÑéÖ¤ÒªÁìµÄRADIUSʵÏÖ
×¢£º½öÖ´ÐÐ RFC 3579 ÖÐÖ¸¶¨µÄ¿ÉÀ©Õ¹Éí·ÝÑéÖ¤ÐÒé (EAP) µÄ RADIUS ·þÎñÆ÷²»ÊܸÃÎó²îÓ°Ï죬EAP Éí·ÝÑéÖ¤ÐÂÎÅÐèÒª Message-Authenticator ÊôÐÔ£¬¿É×èÖ¹¹¥»÷¡£Ê¹Óà TLS£¨»ò DTLS£©¼ÓÃÜÒ²¿ÉÒÔ×èÖ¹´ËÀ๥»÷¡£
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3.1 Éý¼¶°æ±¾
À¦°ó¿ªÔ´ RADIUS ʵÏÖ£¨ÈçFreeRadius£©µÄÖÆÔìÉÌÓ¦½«¿Í»§¶ËºÍ·þÎñÆ÷µÄÈí¼þ¸üе½×îпÉÓÃÈí¼þ£¬²¢ÇÒÖÁÉÙÒªÇóʹÓà Message-Authenticator ¾ÙÐÐ RADIUS Éí·ÝÑéÖ¤¡£ÏÖÔÚFreeRADIUSÒÑÌṩÁË3.0.27 ºÍ 3.2.5°æ±¾µÄÔ¤¹¹½¨Èí¼þ°ü£¬ÏÂÔØÁ´½Ó£º
https://www.networkradius.com/packages/
ÒÀÀµ»ùÓÚ RADIUS µÄÐÒé¾ÙÐÐ×°±¸»òÓû§Éí·ÝÑéÖ¤µÄÍøÂçÔËÓªÉÌÓ¦½«ÆäÈí¼þºÍÉèÖøüÐÂΪ¿Í»§¶ËºÍ·þÎñÆ÷µÄÇå¾²ÐÒéÐÎʽ¡£Õâ¿ÉÒÔͨ¹ýÇ¿ÖÆʵÑé TLS »ò DTLS ¼ÓÃÜÀ´±£»¤ RADIUS ¿Í»§¶ËºÍ·þÎñÆ÷Ö®¼äµÄͨѶÀ´ÊµÏÖ¡£ÔÚ¿ÉÄܵÄÇéÐÎÏ£¬Ó¦Îª RADIUS ÐÒéÇ¿ÖÆʵÑéÍøÂç¸ôÀëºÍÇå¾² VPN ËíµÀͨѶ£¬ÒÔÏÞÖƲ»ÊÜÐÅÍеÄȪԴ¶ÔÕâЩÍøÂç×ÊÔ´µÄ»á¼û¡£
΢ÈíÒÑÔÚ7Ô²¹¶¡ÖÐÌṩÁËÊÜÓ°Ïì Windows °æ±¾µÄÇå¾²¸üÐÂÐÞ¸´Á˸ÃÎó²î£¬¿É²Î¿¼£º
https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2024-3596
3.2 ÔÝʱ²½·¥
ÈôÊÇϵͳʹÓà PAP¡¢CHAP »ò MS-CHAP over RADIUS/UDP£¬ÔòÐèÒªÉý¼¶ FreeRADIUS£¬È»ºóʹÓÃеÄÉèÖñê¼ÇÖØÐÂÉèÖÃËü£¬¿É²Î¿¼:
https://www.freeradius.org/security/
3.3 ͨÓý¨Òé
l °´ÆÚ¸üÐÂϵͳ²¹¶¡£¬ïÔÌϵͳÎó²î£¬ÌáÉý·þÎñÆ÷µÄÇå¾²ÐÔ¡£
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3.4 ²Î¿¼Á´½Ó
https://www.blastradius.fail/
https://www.blastradius.fail/pdf/radius.pdf
https://kb.cert.org/vuls/id/456537
https://www.freeradius.org/security/
https://datatracker.ietf.org/doc/draft-ietf-radext-deprecating-radius/
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