¡¾Îó²îͨ¸æ¡¿Cisco 1Ô¶à¸öÇå¾²Îó²î

Ðû²¼Ê±¼ä 2022-01-20


0x00 Îó²î¸ÅÊö

2022Äê1ÔÂ19ÈÕ£¬£¬£¬£¬CiscoÐû²¼Ç徲ͨ¸æ£¬£¬£¬£¬ÐÞ¸´ÁËÆä¶à¸ö²úÆ·ÖеĶà¸öÇå¾²Îó²î£¬£¬£¬£¬ÕâЩÎó²îÄܹ»µ¼ÖÂÐÅϢй¶¡¢¾Ü¾øÐ§ÀÍ¡¢ÏÂÁî×¢Èë»òÔ¶³Ì´úÂëÖ´ÐС£¡£ ¡£¡£

 

0x01 Îó²îÏêÇé

Cisco StarOS Èí¼þµÄ Cisco Redundancy Configuration Manager (RCM) Öб£´æ2¸öÇå¾²Îó²î£¬£¬£¬£¬ÔÊÐíδ¾­Éí·ÝÑéÖ¤µÄÔ¶³Ì¹¥»÷Õß»ñÈ¡Ãô¸ÐÐÅÏ¢»òÒÔrootÓû§Éí·ÝÖ´ÐÐí§Òâ´úÂë¡£¡£ ¡£¡£ÏêÇéÈçÏ£º

CVE-2022-20649£ºCisco RCMÔ¶³Ì´úÂëÖ´ÐÐÎó²î

ÓÉÓÚ¹ýʧµØÎªÌض¨Ð§ÀÍÆôÓÃÁ˵÷ÊÔģʽ£¬£¬£¬£¬Cisco RCM for Cisco StarOS Software Öб£´æÔ¶³Ì´úÂëÖ´ÐÐÎó²î£¨CVSSÆÀ·ÖΪ9.0£©£¬£¬£¬£¬ÔÊÐíδ¾­Éí·ÝÑéÖ¤µÄÔ¶³Ì¹¥»÷ÕßÔÚÒÑÉèÖÃÈÝÆ÷µÄÉÏÏÂÎÄÖÐÒÔrootȨÏÞ¶ÔÓ¦ÓóÌÐòÖ´ÐÐÔ¶³Ì´úÂë¡£¡£ ¡£¡£

CVE-2022-20648£ºCisco RCMÐÅϢй¶Îó²î

ÓÉÓÚµ÷ÊÔЧÀ͹ýʧµØÕìÌýºÍ½ÓÊÜ´«ÈëÅþÁ¬£¬£¬£¬£¬Cisco RCM for Cisco StarOS Software µÄµ÷ÊÔ¹¦Ð§Öб£´æÐÅϢй¶Îó²î£¨CVSSÆÀ·ÖΪ5.3£©£¬£¬£¬£¬ÔÊÐíδ¾­Éí·ÝÑéÖ¤µÄÔ¶³Ì¹¥»÷ÕßÖ´Ðе÷ÊÔ²Ù×÷£¬£¬£¬£¬Õâ¿ÉÄܵ¼Öµ÷ÊÔÐÅÏ¢µÈÃô¸ÐÐÅϢй¶¡£¡£ ¡£¡£

±ðµÄ£¬£¬£¬£¬Cisco»¹ÐÞ¸´ÁËÆä¶à¸ö²úÆ·ÖеÄSnort Modbus ¾Ü¾øÐ§ÀÍÎó²î£¨CVE-2022-20685£¬£¬£¬£¬CVSSÆÀ·Ö7.5£©ºÍCLI ÏÂÁî×¢ÈëÎó²î£¨CVE-2022-20655£¬£¬£¬£¬CVSSÆÀ·Ö8.8£©¡£¡£ ¡£¡£Ç°ÕßÊÇÓÉÓÚ´¦Öóͷ£ Modbus Á÷Á¿Ê±·ºÆðÕûÊýÒç³ö£¬£¬£¬£¬Snort ¼ì²âÒýÇæµÄ Modbus Ô¤´¦Öóͷ£Æ÷Öб£´æÇå¾²ÎÊÌ⣬£¬£¬£¬¿ÉÄÜÔÊÐíδ¾­Éí·ÝÑéÖ¤µÄÔ¶³Ì¹¥»÷ÕßÔÚÊÜÓ°ÏìµÄÉè±¹ØÁ¬¼Ö¾ܾøÐ§ÀÍ (DoS) ¡£¡£ ¡£¡£¸ÃÎó²îÓ°ÏìÔçÓÚ°æ±¾ 2.9.18 ºÍ°æ±¾ 3.1.0.100 µÄËùÓпªÔ´ Snort ÏîÄ¿°æ±¾£¬£¬£¬£¬²¢Ó°ÏìÁ˶à¸öCisco²úÆ·£»£»£»£»£»£»£»ºóÕßÊÇÓÉÓÚÔÚÊÜÓ°ÏìµÄ²úÆ·É϶ÔÀú³Ì²ÎÊýµÄÑéÖ¤²»³ä·Ö£¬£¬£¬£¬¶à¸ö Cisco ²úÆ·µÄ CLI ʵÑéÖб£´æ×¢ÈëÎó²î£¬£¬£¬£¬ÔÊÐí¾­ÓÉÉí·ÝÑéÖ¤µÄÍâµØ¹¥»÷ÕßÖ´ÐÐÏÂÁî×¢Èë¹¥»÷¡£¡£ ¡£¡£

 

Ó°Ïì¹æÄ£

CVE-2022-20649¡¢CVE-2022-20648£º

Cisco RCM for StarOS °æ±¾<= 21.25

 

0x02 ´¦Öóͷ£½¨Òé

ÏÖÔÚCiscoÒѾ­ÐÞ¸´ÁËÉÏÊöÎó²î£¬£¬£¬£¬½¨Òéʵʱ²ÎÕÕ¹Ù·½Í¨¸æÉý¼¶¸üÐÂÖÁÏìÓ¦ÐÞ¸´°æ±¾¡£¡£ ¡£¡£

Õë¶ÔCVE-2022-20649¡¢CVE-2022-20648£º

l  Cisco RCM for StarOS °æ±¾< 21.25£ºÇ¨áãµ½Àο¿°æ±¾¡£¡£ ¡£¡£

l  Cisco RCM for StarOS °æ±¾ 21.25£ºÉý¼¶µ½21.25.4¡£¡£ ¡£¡£

ÈôÒª´ÓCisco.com ÉϵÄÈí¼þÖÐÐÄÏÂÔØÈí¼þ£¬£¬£¬£¬ÇëÖ´ÐÐÒÔϲÙ×÷£º

1.µ¥»÷¡°Browse all¡±¡£¡£ ¡£¡£

2.Ñ¡Ôñ¡°Wireless > Mobile Internet > Platforms > Ultra Packet Core > Ultra Software¡±¡£¡£ ¡£¡£

3.´Ó×ó²à´°¸ñÖÐÑ¡ÔñÒ»¸ö°æ±¾¡£¡£ ¡£¡£

 

0x03 ²Î¿¼Á´½Ó

https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-rcm-vuls-7cS3Nuq

https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-cli-cmdinj-4MttWZPB

https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-snort-dos-9D3hJLuj

 

0x04 ¸üа汾

°æ±¾

ÈÕÆÚ

ÐÞ¸ÄÄÚÈÝ

V1.0

2022-01-20

Ê×´ÎÐû²¼

  

0x05 ¸½Â¼

¼øºÚµ£±£Íø¼ò½é

¼øºÚµ£±£Íø¹«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´£¬£¬£¬£¬¼øºÚµ£±£ÍøÖÂÁ¦ÓÚÌṩ¾ßÓйú¼Ê¾ºÕùÁ¦µÄ×ÔÖ÷Á¢ÒìµÄÇå¾²²úÆ·ºÍ×î¼Ñʵ¼ùЧÀÍ£¬£¬£¬£¬×ÊÖú¿Í»§ÖÜÈ«ÌáÉýÆäIT»ù´¡ÉèÊ©µÄÇå¾²ÐÔºÍÉú²úЧÄÜ£¬£¬£¬£¬Îª´òÔìºÍÌáÉý¹ú¼Ê»¯µÄÃñ×åÐÅÏ¢Çå¾²¹¤ÒµÁì¾üÆ·ÅÆ¶ø²»Ð¸Æð¾¢¡£¡£ ¡£¡£

 

¹ØÓÚ¼øºÚµ£±£Íø

¼øºÚµ£±£ÍøÇå¾²Ó¦¼±ÏìÓ¦ÖÐÐÄÖ÷ÒªÕë¶ÔÖ÷ÒªÇå¾²Îó²îµÄÔ¤¾¯¡¢¸ú×ٺͷÖÏíÈ«Çò×îеÄÍþвÇ鱨ºÍÇå¾²±¨¸æ¡£¡£ ¡£¡£

¹Ø×¢ÒÔϹ«Öںţ¬£¬£¬£¬»ñȡȫÇò×îÐÂÇå¾²×ÊѶ£º

image.png