¡¾Îó²îͨ¸æ¡¿Fluent BitÄÚ´æËð»µÎó²î£¨CVE-2024-4323£©
Ðû²¼Ê±¼ä 2024-05-21Ò»¡¢Îó²î¸ÅÊö
Îó²îÃû³Æ | Fluent BitÄÚ´æËð»µÎó²î | ||
CVE ID | CVE-2024-4323 | ||
Îó²îÀàÐÍ | »º³åÇøÒç³ö | ·¢Ã÷ʱ¼ä | 2024-05-21 |
Îó²îÆÀ·Ö | 9.8 | Îó²îÆ·¼¶ | ÑÏÖØ |
¹¥»÷ÏòÁ¿ | ÍøÂç | ËùÐèȨÏÞ | ÎÞ |
ʹÓÃÄÑ¶È | µÍ | Óû§½»»¥ | ÎÞ |
PoC/EXP | ÒѹûÕæ | ÔÚҰʹÓà | δ·¢Ã÷ |
Fluent BitÊÇÒ»¸ö¹¦Ð§Ç¿Ê¢¡¢ÎÞаÇÒÒ×ÓÚʹÓõÄÈÕÖ¾´¦Öóͷ£ºÍת·¢¹¤¾ß£¬ÊÊÓÃÓÚÖÖÖÖ¹æÄ£ºÍÀàÐ͵ÄÓ¦ÓúÍϵͳ£¨ÈçLinux¡¢Windows¡¢Ç¶ÈëʽLinux¡¢MacOSµÈ£©¡£Fluent Bit ÊÇÖÚ¶àÔÆÌṩÉ̺ÍÆóҵʹÓõÄÊ¢ÐÐÈÕÖ¾¼Í¼ÊÊÓóÌÐò£¬ÏÖÔÚÏÂÔغͰ²ÅÅ´ÎÊýÒÑÁè¼Ý130ÒڴΡ£
2024Äê5ÔÂ21ÈÕ£¬ÓÅ·¢¹ú¼ÊÍøÕ¾¹ÙÍø¼¯ÍÅVSRC¼à²âµ½Fluent Bit±»Åû¶±£´æÄÚ´æËð»µÎó²î£¨CVE-2024-4323£¬±»³ÆΪLinguistic Lumberjack£©£¬ÆäCVSSÆÀ·ÖΪ9.8£¬ÏÖÔÚ¸ÃÎó²îµÄÊÖÒÕϸ½Ú¼°PoCÒѹûÕæ¡£
Fluent Bit °æ±¾2.0.7 - 3.0.3Öб£´æ¶Ñ»º³åÇøÒç³öÎó²î£¬¸ÃÎó²î±£´æÓÚFluent Bit µÄǶÈëʽ http ·þÎñÆ÷¶Ô¸ú×ÙÇëÇóµÄÆÊÎöÖУ¬ÓÉÓÚÔÚÆÊÎö/api/v1/traces ¶ËµãµÄ´«ÈëÇëÇóʱ£¬ÔÚÆÊÎö֮ǰδ׼ȷÑéÖ¤input_nameµÄÊý¾ÝÀàÐÍ£¬¿Éͨ¹ýÔÚÇëÇóµÄ¡°inputs¡±Êý×éÖÐת´ï·Ç×Ö·û´®Öµ£¨ÈçÕûÊýÖµ£©£¬¿ÉÄܵ¼ÖÂÄÚ´æË𻵣¬ÀÖ³ÉʹÓøÃÎó²î¿ÉÄܵ¼Ö¾ܾø·þÎñ¡¢ÐÅϢ鶻òÔ¶³Ì´úÂëÖ´ÐС£
¶þ¡¢Ó°Ïì¹æÄ£
Fluent Bit °æ±¾ 2.0.7 - 3.0.3
Èý¡¢Çå¾²²½·¥
3.1 Éý¼¶°æ±¾
ÏÖÔÚ¸ÃÎó²îÒѾÐÞ¸´£¬ÊÜÓ°ÏìÓû§¿ÉÉý¼¶µ½Fluent Bit v3.0.4»ò¸ü¸ß°æ±¾¡£
ÏÂÔØÁ´½Ó£º
https://github.com/fluent/fluent-bit/tags
3.2 ÔÝʱ²½·¥
ÎÞ·¨Á¬Ã¦Éý¼¶µÄFluent BitÈÕÖ¾ÊÊÓóÌÐòÓû§¿Éͨ¹ýÏÞÖÆÊÚȨÓû§ºÍ·þÎñ»á¼û Fluent Bit µÄmonitoring API£¨Ö¼ÔÚÅÌÎʺͼà¿ØÄÚ²¿·þÎñÐÅÏ¢£©À´»º½â¸ÃÎó²î¡£ÈôÊDz»Ê¹ÓøÃÒ×Êܹ¥»÷µÄ API ¶Ëµã£¬¿ÉÑ¡Ôñ½«Æä½ûÓá£
3.3 ͨÓý¨Òé
l °´ÆÚ¸üÐÂϵͳ²¹¶¡£¬ïÔÌϵͳÎó²î£¬ÌáÉý·þÎñÆ÷µÄÇå¾²ÐÔ¡£
l ÔöǿϵͳºÍÍøÂçµÄ»á¼û¿ØÖÆ£¬Ð޸ķÀ»ðǽսÂÔ£¬¹Ø±Õ·ÇÐëÒªµÄÓ¦Óö˿ڻò·þÎñ£¬ïÔ̽«Î£ÏÕ·þÎñ£¨ÈçSSH¡¢RDPµÈ£©Ì»Â¶µ½¹«Íø£¬ïÔ̹¥»÷Ãæ¡£
l ʹÓÃÆóÒµ¼¶Çå¾²²úÆ·£¬ÌáÉýÆóÒµµÄÍøÂçÇå¾²ÐÔÄÜ¡£
l ÔöǿϵͳÓû§ºÍȨÏÞÖÎÀí£¬ÆôÓöàÒòËØÈÏÖ¤»úÖƺÍ×îСȨÏÞÔÔò£¬Óû§ºÍÈí¼þȨÏÞÓ¦¼á³ÖÔÚ×îµÍÏ޶ȡ£
l ÆôÓÃÇ¿ÃÜÂëÕ½ÂÔ²¢ÉèÖÃΪ°´ÆÚÐ޸ġ£
3.4 ²Î¿¼Á´½Ó
https://www.tenable.com/security/research/tra-2024-17
https://www.tenable.com/blog/linguistic-lumberjack-attacking-cloud-services-via-logging-endpoints-fluent-bit-cve-2024-4323
https://github.com/fluent/fluent-bit/commit/9311b43a258352797af40749ab31a63c32acfd04
https://github.com/fluent/fluent-bit/actions/runs/9097880110
ËÄ¡¢°æ±¾ÐÅÏ¢
°æ±¾ | ÈÕÆÚ | ±¸×¢ |
V1.0 | 2024-05-21 | Ê×´ÎÐû²¼ |
Îå¡¢¸½Â¼
5.1 ÓÅ·¢¹ú¼ÊÍøÕ¾¹ÙÍø¼ò½é
ÓÅ·¢¹ú¼ÊÍøÕ¾¹ÙÍø½¨ÉèÓÚ1996Ä꣬ÊÇÓÉÁôÃÀ²©Ê¿ÑÏÍû¼ÑŮʿ½¨ÉèµÄ¡¢ÓµÓÐÍêÈ«×ÔÖ÷֪ʶ²úȨµÄÐÅÏ¢Çå¾²¸ß¿Æ¼¼ÆóÒµ¡£ÊǺ£ÄÚ×î¾ßʵÁ¦µÄÐÅÏ¢Çå¾²²úÆ·¡¢Çå¾²·þÎñ½â¾ö¼Æ»®µÄÁ캽ÆóÒµÖ®Ò»¡£
¹«Ë¾×ܲ¿Î»ÓÚ±±¾©ÊÐÖйشåÈí¼þÔ°ÓÅ·¢¹ú¼ÊÍøÕ¾¹ÙÍø´óÏ㬹«Ë¾Ô±¹¤6000ÓàÈË£¬Ñз¢ÍŶÓ1200ÓàÈË, ÊÖÒÕ·þÎñÍŶÓ1300ÓàÈË¡£ÔÚÌìϸ÷Ê¡¡¢ÊС¢×ÔÖÎÇøÉèÁ¢·ÖÖ§»ú¹¹ÁùÊ®¶à¸ö£¬ÓµÓÐÁýÕÖÌìϵÄÏúÊÛϵͳ¡¢ÇþµÀϵͳºÍÊÖÒÕÖ§³Öϵͳ¡£¹«Ë¾ÓÚ2010Äê6ÔÂ23ÈÕÔÚÉîÛÚÖÐС°å¹ÒÅÆÉÏÊС££¨¹ÉƱ´úÂ룺002439£©
¶àÄêÀ´£¬ÓÅ·¢¹ú¼ÊÍøÕ¾¹ÙÍøÖÂÁ¦ÓÚÌṩ¾ßÓйú¼Ê¾ºÕùÁ¦µÄ×ÔÖ÷Á¢ÒìµÄÇå¾²²úÆ·ºÍ×î¼Ñʵ¼ù·þÎñ£¬×ÊÖú¿Í»§ÖÜÈ«ÌáÉýÆäIT»ù´¡ÉèÊ©µÄÇå¾²ÐÔºÍÉú²úЧÄÜ£¬Îª´òÔìºÍÌáÉý¹ú¼Ê»¯µÄÃñ×åÐÅÏ¢Çå¾²¹¤ÒµÁì¾üÆ·Åƶø²»Ð¸Æ𾢡£
5.2 ¹ØÓÚÓÅ·¢¹ú¼ÊÍøÕ¾¹ÙÍø
ÓÅ·¢¹ú¼ÊÍøÕ¾¹ÙÍøÇå¾²Ó¦¼±ÏìÓ¦ÖÐÐÄÒÑÐû²¼1000¶à¸öÎó²îͨ¸æºÍΣº¦Ô¤¾¯£¬ÎÒÃǽ«Ò»Á¬¸ú×ÙÈ«Çò×îеÄÍøÂçÇå¾²ÊÂÎñºÍÎó²î£¬ÎªÆóÒµµÄÐÅÏ¢Çå¾²±£¼Ý»¤º½¡£
¹Ø×¢ÎÒÃÇ£º