Question

Cisco ASA: How to log IP address of bruteforce SSH attempts?

Asked by: schoemans

Hi,

I am getting a lot these messages in my ASA log file. I need to trace these cause I suspect it may be my ISP because the SSH access is limited to only a few addresses.


Oct 07 2009 09:52:02: %ASA-6-113015: AAA user authentication Rejected : reason = Invalid password : local database : user = root
Oct 07 2009 09:52:10: %ASA-6-113015: AAA user authentication Rejected : reason = Invalid password : local database : user = root
Oct 07 2009 09:52:17: %ASA-6-113015: AAA user authentication Rejected : reason = Invalid password : local database : user = root
Oct 07 2009 09:52:25: %ASA-6-113015: AAA user authentication Rejected : reason = Invalid password : local database : user = root
Oct 07 2009 09:52:34: %ASA-6-113015: AAA user authentication Rejected : reason = Invalid password : local database : user = root
Oct 07 2009 09:52:43: %ASA-6-113015: AAA user authentication Rejected : reason = Invalid password : local database : user = root
Oct 07 2009 09:52:52: %ASA-6-113015: AAA user authentication Rejected : reason = Invalid password : local database : user = root
Oct 07 2009 09:57:36: %ASA-6-113015: AAA user authentication Rejected : reason = Invalid password : local database : user = globus

I currently have this configured for logging:

logging enable
logging timestamp
logging list customloglist message 109001-109013
logging list customloglist message 111009
logging buffer-size 1048576
logging asdm-buffer-size 512
logging buffered customloglist
logging asdm debugging
logging flash-bufferwrap
logging flash-minimum-free 40960
logging flash-maximum-allocation 30720
logging class auth buffered informational
logging class config buffered informational
logging class session buffered errors

I can't find the syslog id that can log the IP address. I do get the IP address though when someone logs in and successfully authenticates with AAA, but not when it is unsuccessfull like above.

How should I configure this?


Thanks!

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Asked On
2009-10-09 at 02:10:35ID24798648
Tags

cisco asa log bruteforce logging aaa authenticate fail ip address

Topics

Cisco PIX Firewall

,

Networking Hardware Firewalls

,

Network Routers

Participating Experts
2
Points
500
Comments
6

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Answers

 

Assisted Solution

by: ikalmarPosted on 2009-10-09 at 02:56:42ID: 25533475

Rank: Genius

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Expert Comment

by: morrisminorPosted on 2009-10-09 at 03:27:34ID: 25533620

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Expert Comment

by: schoemansPosted on 2009-10-09 at 03:30:28ID: 25533630

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Assisted Solution

by: ikalmarPosted on 2009-10-09 at 03:35:45ID: 25533658

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Accepted Solution

by: schoemansPosted on 2009-10-09 at 04:18:15ID: 25533840

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Expert Comment

by: ikalmarPosted on 2009-10-09 at 04:24:42ID: 25533870

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