¡¾Îó²îͨ¸æ¡¿Apache CouchDBÔ¶³Ì´úÂëÖ´ÐÐÎó²î£¨CVE-2022-24706£©

Ðû²¼Ê±¼ä 2022-04-27


0x00 Îó²î¸ÅÊö

CVE   ID

CVE-2022-24706

·¢Ã÷ʱ¼ä

2022-04-26

Àà    ÐÍ

´úÂëÖ´ÐÐ

µÈ    ¼¶

ÑÏÖØ

Ô¶³ÌʹÓÃ

ÊÇ

Ó°Ïì¹æÄ£


¹¥»÷ÖØÆ¯ºó


Óû§½»»¥


PoC/EXP


ÔÚҰʹÓÃ


 

0x01 Îó²îÏêÇé

Apache CouchDB ÊÇÒ»¸ö¿ªÔ´µÄÎÞ·ì¶àÖ÷ͬ²½Êý¾Ý¿â£¬£¬ £¬£¬Ê¹ÓÃÖ±¹ÛµÄHTTP/JSON API£¬£¬ £¬£¬²¢Îª¿É¿¿ÐÔ¶øÉè¼Æ¡£¡£¡£¡£¡£¡£¡£

4ÔÂ26ÈÕ£¬£¬ £¬£¬ApacheÐû²¼Ç徲ͨ¸æ£¬£¬ £¬£¬¹ûÕæÁËApache CouchDBÖеÄÒ»¸öÔ¶³Ì´úÂëÖ´ÐÐÎó²î£¨CVE-2022-24706£©¡£¡£¡£¡£¡£¡£¡£ÔÚ3.2.2 °æ±¾Ö®Ç°µÄ Apache CouchDB ÖУ¬£¬ £¬£¬¿ÉÒÔÔÚ²»¾ÙÐÐÉí·ÝÑéÖ¤µÄÇéÐÎÏ»á¼û²»×¼È·µÄĬÈÏ×°Öò¢»ñµÃÖÎÀíԱȨÏÞ£º

1.    CouchDB ·­¿ªÒ»¸öËæ»úÍøÂç¶Ë¿Ú£¬£¬ £¬£¬°ó¶¨µ½ËùÓпÉÓõĽӿÚÒÔÔ¤ÆÚ¼¯Èº²Ù×÷»òruntime introspection£¬£¬ £¬£¬³ÆÎª "epmd "µÄÊÊÓóÌÐòÏòÍøÂçÐû²¼ÁËÕâ¸öËæ»ú¶Ë¿Ú¡£¡£¡£¡£¡£¡£¡£epmd×Ô¼ºÔÚÒ»¸öÀο¿µÄ¶Ë¿ÚÉϼàÌý¡£¡£¡£¡£¡£¡£¡£

2.    CouchDB°üװ֮ǰΪµ¥½ÚµãºÍ¼¯Èº×°ÖÃÑ¡ÔñÁËÒ»¸öĬÈϵÄ"cookie "Öµ£¬£¬ £¬£¬¸ÃcookieÓÃÓÚÑéÖ¤Erlang ½ÚµãÖ®¼äµÄÈκÎͨѶ¡£¡£¡£¡£¡£¡£¡£

CouchDB¹Ù·½½¨ÒéÔÚËùÓÐCouchDB×°ÖÃǰÉèÖ÷À»ðǽ¡£¡£¡£¡£¡£¡£¡£ÍêÕûµÄCouchDB apiÔÚ×¢²áµÄ¶Ë¿Ú5984ÉÏ¿ÉÓ㬣¬ £¬£¬ÕâÊǵ¥½Úµã×°ÖÃÐèÒª¹ûÕæµÄΨһ¶Ë¿Ú¡£¡£¡£¡£¡£¡£¡£²»½«µ¥¶ÀµÄ·ÖÀÄõü¿Ú̻¶¸øÍⲿ»á¼ûµÄ×°Öò»Ò×Êܵ½¹¥»÷¡£¡£¡£¡£¡£¡£¡£


Ó°Ïì¹æÄ£

Apache CouchDB < 3.2.2

 

0x02 Çå¾²½¨Òé

ÏÖÔÚ´ËÎó²îÒѾ­ÐÞ¸´£¬£¬ £¬£¬½¨ÒéÊÜÓ°ÏìÓû§ÊµÊ±Éý¼¶¸üе½Apache CouchDB 3.2.2»ò¸ü¸ß°æ±¾¡£¡£¡£¡£¡£¡£¡£

ÏÂÔØÁ´½Ó£º

https://couchdb.apache.org/

×¢£ºCouchDB °æ±¾>= 3.2.2Öн«²»ÔÙʹÓÃÒÔǰĬÈϵÄErlang cookieÖµ`monster'£¬£¬ £¬£¬Éý¼¶µ½´Ë°æ±¾µÄ×°Öý«±»ÆÈÑ¡Ôñ²î±ðµÄÖµ¡£¡£¡£¡£¡£¡£¡£

±ðµÄ£¬£¬ £¬£¬ËùÓжþ½øÖưü¶¼ÒѸüУ¬£¬ £¬£¬ÒÔ°ó¶¨`epmd`ÒÔ¼°CouchDB·ÖÀÄõü¿Ú»®·ÖΪ`127.0.0.1`ºÍ/»ò`::1`¡£¡£¡£¡£¡£¡£¡£

 

0x03 ²Î¿¼Á´½Ó

https://www.mail-archive.com/announce@apache.org/msg07264.html

https://www.openwall.com/lists/oss-security/2022/04/26/1

https://docs.couchdb.org/en/stable/setup/cluster.html


0x04 °æ±¾ÐÅÏ¢

°æ±¾

ÈÕÆÚ

ÐÞ¸ÄÄÚÈÝ

V1.0

2022-04-27

Ê×´ÎÐû²¼

 

0x05 ¸½Â¼

ÍòÀû¹ú¼Ê¹ÙÍø¼ò½é

ÍòÀû¹ú¼Ê¹ÙÍø¹«Ë¾½¨ÉèÓÚ1996Ä꣬£¬ £¬£¬²¢ÓÚ2010Äê6ÔÂ23ÈÕÔÚÉî½»ËùÖÐС°åÕýʽ¹ÒÅÆÉÏÊУ¬£¬ £¬£¬ÊǺ£ÄÚ¼«¾ßʵÁ¦µÄ¡¢ÓµÓÐÍêÈ«×ÔÖ÷֪ʶ²úȨµÄÍøÂçÇå¾²²úÆ·¡¢¿ÉÐÅÇå¾²ÖÎÀíÆ½Ì¨¡¢Ç徲ЧÀÍÓë½â¾ö¼Æ»®µÄ×ÛºÏÌṩÉÌ¡£¡£¡£¡£¡£¡£¡£

¹«Ë¾×ܲ¿Î»ÓÚ±±¾©ÊÐÖйشåÈí¼þÔ°£¬£¬ £¬£¬ÔÚÌìϸ÷Ê¡¡¢ÊС¢×ÔÖÎÇøÉèÓзÖÖ§»ú¹¹£¬£¬ £¬£¬ÓµÓÐÁýÕÖÌìϵÄÇþµÀϵͳºÍÊÖÒÕÖ§³ÖÖÐÐÄ£¬£¬ £¬£¬²¢ÔÚ±±¾©¡¢ÉϺ£¡¢³É¶¼¡¢¹ãÖÝ¡¢³¤É³¡¢º¼ÖÝµÈ¶àµØÉèÓÐÑз¢ÖÐÐÄ¡£¡£¡£¡£¡£¡£¡£

¶àÄêÀ´£¬£¬ £¬£¬ÍòÀû¹ú¼Ê¹ÙÍøÖÂÁ¦ÓÚÌṩ¾ßÓйú¼Ê¾ºÕùÁ¦µÄ×ÔÖ÷Á¢ÒìµÄÇå¾²²úÆ·ºÍ×î¼Ñʵ¼ùЧÀÍ£¬£¬ £¬£¬×ÊÖú¿Í»§ÖÜÈ«ÌáÉýÆäIT»ù´¡ÉèÊ©µÄÇå¾²ÐÔºÍÉú²úЧÄÜ£¬£¬ £¬£¬Îª´òÔìºÍÌáÉý¹ú¼Ê»¯µÄÃñ×åÐÅÏ¢Çå¾²¹¤ÒµÁì¾üÆ·ÅÆ¶ø²»Ð¸Æð¾¢¡£¡£¡£¡£¡£¡£¡£


¹ØÓÚÍòÀû¹ú¼Ê¹ÙÍø

ÍòÀû¹ú¼Ê¹ÙÍøÇå¾²Ó¦¼±ÏìÓ¦ÖÐÐÄÖ÷ÒªÕë¶ÔÖ÷ÒªÇå¾²Îó²îµÄÔ¤¾¯¡¢¸ú×ٺͷÖÏíÈ«Çò×îеÄÍþвÇ鱨ºÍÇå¾²±¨¸æ¡£¡£¡£¡£¡£¡£¡£

¹Ø×¢ÒÔϹ«Öںţ¬£¬ £¬£¬»ñȡȫÇò×îÐÂÇå¾²×ÊѶ£º

image.png