¡¾·ì϶¹«¸æ¡¿Redis´úÂëÖ´Ðзì϶£¨CVE-2024-46981£©

°ä²¼¹¦·ò 2025-01-07

Ò»¡¢·ì϶¸ÅÊö


·ìϼûû³Æ

Redis´úÂëÖ´Ðзì϶

CVE   ID

CVE-2024-46981

·ì϶ÀàÐÍ

Use-After-Free

·¢ÏÖ¹¦·ò

2025-01-07

·ì϶ÆÀ·Ö

7.0

·ì϶µÈ¼¶

¸ßΣ

¹¥»÷ÏòÁ¿

±¾µØ

ËùÐèȨÏÞ

µÍ

ÀûÓÃÄѶÈ

¸ß

Óû§½»»¥

ÎÞ

PoC/EXP

δ¹«¿ª

ÔÚÒ°ÀûÓÃ

δ·¢ÏÖ

 

RedisÊÇÒ»¸ö¸ß»úÄÜ¡¢½Ã½ÝÇÒÒ×ÓÚÀ©´óµÄ¼üÖµ´æ´¢Êý¾Ý¿â£¬ºÏÓÃÓÚ¸÷ÀàÀûÓó¡¾°£¬¿É×÷Ϊ»º´æ¡¢Êý¾Ý¿âºÍÐÂÎÅÖÐÑë¼þµÈ£¬ÓµÓнܳöµÄ»úÄܺͲ»±äÐÔ¡£


2025Äê1ÔÂ7ÈÕ£¬GA»Æ½ð¼×¼¯ÍÅVSRC¼à²âµ½RedisÖн¨¸´ÁËÒ»¸ö´úÂëÖ´Ðзì϶£¨CVE-2024-46981£©£¬¸Ã·ì϶µÄCVSSÆÀ·ÖΪ7.0¡£


Redis µÄ Lua ¾ç±¾ÒýÇæÔÚ´¦ÖÃÄÚ´æÖÎÀíʱ´æÔÚ·ì϶£¬¾­¹ýÉí·ÝÑéÖ¤µÄÓû§Äܹ»Ê¹ÓÃÌØÔìµÄ Lua ½ÅÕý±¾°Ñ³ÖÄÚ´æ»ØÊÕ»úÔ죬ͨ¹ýRedisÌṩµÄ EVAL ºÍ EVALSHA ºÅÁîÔËÐиöñÒâ Lua ¾ç±¾£¬´Ó¶ø¿ÉÄÜÀûÓø÷ì϶ÔÚ Redis ·þÎñÆ÷ÉÏÖ´ÐÐËÁÒâ´úÂë¡£


¶þ¡¢Ó°ÏìÁìÓò


Redis < 7.4.2

Redis < 7.2.7

Redis < 6.2.17


×¢£ºÈôÊÇ Redis ÅäÖÃδÏÞ¶È Lua ¾ç±¾Ö´ÐУ¨ÀýÈçͨ¹ý ACL ÅäÖÃÏÞ¶È EVAL ºÍ EVALSHA ºÅÁ£¬ÔòʹÓà Lua ¾ç±¾µÄ Redis »áÊܵ½¸Ã·ì϶µÄÓ°Ïì¡£


Èý¡¢°²È«´ëÊ©


3.1 Éý¼¶°æ±¾


Ŀǰ¸Ã·ì϶ÒѾ­½¨¸´£¬ÊÜÓ°ÏìÓû§¿ÉÉý¼¶µ½ÒÔϰ汾£º

Redis >= 7.4.2

Redis >= 7.2.7

Redis >= 6.2.17


ÏÂÔØÁ´½Ó£º

https://github.com/redis/redis/tags


3.2 һʱ´ëÊ©


ͨ¹ý×èÖ¹Óû§Ö´ÐÐ Lua ¾ç±¾£¬´Ó¶øÔ¤·À¶ñÒâ Lua ¾ç±¾µÄÖ´ÐС£Äܹ»Í¨¹ý ACL£¨½Ó¼û½ÚÔìÁÐ±í£©À´ÏÞ¶È»ò²»ÈÝ EVAL ºÍ EVALSHA ºÅÁîµÄʹÓá£


3.3 ͨÓý¨Òé


? ¶¨ÆÚ¸üÐÂϵͳ²¹¶¡£¬Ï÷¼õϵͳ·ì϶£¬ÌáÉý·þÎñÆ÷µÄ°²È«ÐÔ¡£

¼ÓǿϵͳºÍÍøÂçµÄ½Ó¼û½ÚÔ죬Åú¸Ä·À»ðǽսÊõ£¬¹Ø¹Ø·Ç±ØÒªµÄÀûÓö˿ڻò·þÎñ£¬Ï÷¼õ½«Î£ÏÕ·þÎñ£¨ÈçSSH¡¢RDPµÈ£©Â¶³öµ½¹«Íø£¬Ï÷¼õ¹¥»÷Ãæ¡£

ʹÓÃÆóÒµ¼¶°²È«²úÆ·£¬ÌáÉýÆóÒµµÄÍøÂ簲ȫ»úÄÜ¡£

¼ÓǿϵͳÓû§ºÍȨÏÞÖÎÀí£¬ÆôÓöà³É·ÖÈÏÖ¤»úÔìºÍ×îÓ×ȨÏÞ×¼Ôò£¬Óû§ºÍÈí¼þȨÏÞӦά³ÖÔÚ×îµÍÏÞ¶È¡£

ÆôÓÃÇ¿ÃÜÂëÕ½Êõ²¢ÉèÖÃΪ¶¨ÆÚÅú¸Ä¡£


3.4 ²Î¿¼Á´½Ó


https://github.com/redis/redis/security/advisories/GHSA-39h2-x6c4-6w4c

https://nvd.nist.gov/vuln/detail/CVE-2024-46981


ËÄ¡¢°æ±¾ÐÅÏ¢


°æ±¾

ÈÕÆÚ

±¸×¢

V1.0

2025-01-07

³õ´Î°ä²¼

 

Îå¡¢¸½Â¼


5.1 GA»Æ½ð¼×¼ò½é


GA»Æ½ð¼×³ÉÁ¢ÓÚ1996Ä꣬ÊÇÓÉÁôÃÀ²©Ê¿ÑÏÍû¼ÑŮʿ´´½¨µÄ¡¢Õ¼ÓÐÆëÈ«×ÔÖ÷֪ʶ²úȨµÄÐÅÏ¢°²È«¸ß¿Æ¼¼ÆóÒµ¡£ÊǹúÄÚ×î¾ßʵÁ¦µÄÐÅÏ¢°²È«²úÆ·¡¢°²È«·þÎñ½â¾ö¹æ»®µÄÁ캽ÆóÒµÖ®Ò»¡£


¹«Ë¾×ܲ¿Î»ÓÚ±±¾©ÊÐÖйشåÈí¼þÔ°GA»Æ½ð¼×´óÏ㬹«Ë¾Ô±¹¤6000ÓàÈË£¬Ñз¢ÍŶÓ1200ÓàÈË, ¼¼Êõ·þÎñÍŶÓ1300ÓàÈË¡£ÔÚÈ«¹ú¸÷Ê¡¡¢ÊÓ×¢×ÔÖÎÇøÉèÁ¢·ÖÖ§»ú¹¹ÁùÊ®¶à¸ö£¬Õ¼Óи²¸ÇÈ«¹úµÄÏúÊÛϵͳ¡¢Çþ·ϵͳºÍ¼¼ÊõÖ§³Öϵͳ¡£¹«Ë¾ÓÚ2010Äê6ÔÂ23ÈÕÔÚÉîÛÚÖÐÓ×°å¹ÒÅÆÉÏÊС££¨¹ÉƱ´úÂ룺002439£©


¶àÄêÀ´£¬GA»Æ½ð¼×ÖÂÁ¦ÓÚÌṩӵÓйú¼Ê¾ºÕùÁ¦µÄ×ÔÖ÷´´Ðµİ²È«²úÆ·ºÍ×î¼Ñʵ¼Ê·þÎñ£¬Ô®ÊÖ¿Í»§È«ÃæÌáÉýÆäIT»ù´¡ÉèÊ©µÄ°²È«ÐԺͳö²úЧÁ¦£¬Îª´òÔìºÍÌáÉý¹ú¼Ê»¯µÄÃñ×åÐÅÏ¢°²È«²úÒµÁì¾üÆ·ÅÆ¶ø²»Ð¸ÖÂÁ¦¡£


5.2 ¹ØÓÚGA»Æ½ð¼×


GA»Æ½ð¼×°²È«Ó¦¼±ÏìÓ¦ÖÐÐÄÒѰ䲼1000¶à¸ö·ì϶¹«¸æÎ¢·çÏÕÔ¤¾¯£¬ÎÒÃǽ«³ÖÐø¸ú×ÙÈ«Çò×îеÄÍøÂ簲ȫÊÂÎñºÍ·ì϶£¬ÎªÆóÒµµÄÐÅÏ¢°²È«±£¼Ý»¤º½¡£


¹Ø×¢ÎÒÃÇ£º


°²È«¼òѶ.jpg