[Bro-Dev] [JIRA] (BIT-1469) dpd.log contains lots of binpac exceptions for RDP

Gary Faulkner (JIRA) jira at bro-tracker.atlassian.net
Fri Sep 4 08:33:00 PDT 2015


    [ https://bro-tracker.atlassian.net/browse/BIT-1469?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=21952#comment-21952 ] 

Gary Faulkner edited comment on BIT-1469 at 9/4/15 10:32 AM:
-------------------------------------------------------------

I'm attaching a new pcap that should have the packets that triggered the following 3 log entries:

1441380002.167146	CmS94x2tcBToBTE1Rc	96.62.17.17	25347	xxx.xxx.98.199	3389	tcp	RDP	Binpac exception: binpac exception: out_of_bound: DT_Data:application_type: 3 > 2
1441380035.230494	CkAfMN3ZndOhBJCs7d	96.62.17.17	27894	xxx.xxx.64.242	3389	tcp	RDP	Binpac exception: binpac exception: out_of_bound: DT_Data:application_type: 3 > 2
1441380086.101330	CTOK0y3yGu8YAq3MNi	96.62.17.17	31730	xxx.xxx.193.242	3389	tcp	RDP	Binpac exception: binpac exception: out_of_bound: DT_Data:application_type: 3 > 2

bad-rdp-04SEP15.pcap should have the above 3 conversations.


was (Author: gfaulkner):
I'm attaching a new pcap that should have the packets that triggered the following 3 log entries:

1441380002.167146	CmS94x2tcBToBTE1Rc	96.62.17.17	25347	xxx.xxx.98.199	3389	tcp	RDP	Binpac exception: binpac exception: out_of_bound: DT_Data:application_type: 3 > 2
1441380035.230494	CkAfMN3ZndOhBJCs7d	96.62.17.17	27894	xxx.xxx.64.242	3389	tcp	RDP	Binpac exception: binpac exception: out_of_bound: DT_Data:application_type: 3 > 2
1441380086.101330	CTOK0y3yGu8YAq3MNi	96.62.17.17	31730	xxx.xxx.193.242	3389	tcp	RDP	Binpac exception: binpac exception: out_of_bound: DT_Data:application_type: 3 > 2

> dpd.log contains lots of binpac exceptions for RDP
> --------------------------------------------------
>
>                 Key: BIT-1469
>                 URL: https://bro-tracker.atlassian.net/browse/BIT-1469
>             Project: Bro Issue Tracker
>          Issue Type: Problem
>          Components: BinPAC, Bro
>    Affects Versions: git/master
>         Environment: RHEL  6.6, 2.4-10 bro build from git
>            Reporter: Gary Faulkner
>              Labels: analyzer
>             Fix For: 2.5
>
>         Attachments: bad-rdp-04SEP15.pcap, rdp-31AUG15.pcap
>
>
> RDP scanners seem to generate a lot of binpac errors in dpd.log for RDP connections.
> The following log line is an example of the error that repeats continuously during the activity:
> 1441031469.413008	CPNcey4q2i8mGVUvEg	74.91.23.83	62082	10.10.81.207	3389	tcp	RDP	Binpac exception: binpac exception: out_of_bound: DT_Data:application_type: 3 > 2
> The 10.x.x.x IP is the redacted local IP. The other IP is the scanner.



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