[Snort-sigs] rule exclusion by content

lravelo at us.hellmann.net lravelo at us.hellmann.net
Thu Jul 13 12:06:10 EDT 2017


We don't use TMG at all.  If the vulnerability is only related to that 
then it's probably a better idea to disable the sid altogether.  Thanks 
for the help.

Regards,

Lazaro Ravelo
ISS Systems Engineer II

Hellmann Worldwide Logistics Inc.
10450 Doral Blvd
Doral, FL  33178
Phone:  +1 305 406 4500
Fax:  +1 305 418 4992
Direct:  +1 305 406 4574
Mobile:  +1 305 927 1386
Email:  Lazaro.Ravelo at us.hellmann.net
Web:  www.hellmann.com
 
THINKING AHEAD - MOVING FORWARD




From:   lists at packetmail.net
To:     lravelo at us.hellmann.net, snort-sigs at lists.snort.org
Date:   07/13/2017 12:02 PM
Subject:        Re: [Snort-sigs] rule exclusion by content



On 07/13/17 10:52, lravelo at us.hellmann.net wrote:
> 
> alert udp $EXTERNAL_NET 53 -> $HOME_NET any (msg:"PROTOCOL-DNS TMG 
Firewall
> Client long host entry exploit attempt"; sid:19187; gid:3; rev:7;
> classtype:attempted-user; reference:cve,2011-1889;
> reference:url,technet.microsoft.com/en-us/security/bulletin/MS11-040; 
metadata:
> engine shared, soid 3|19187, policy max-detect-ips drop;)
> 
> we use OpenDNS in our environment and it seems like every single alert 
contains
> "opendns" somewhere in the content.  I'm sure there's a way to adjust or 
create
> another rule which negates the alert if the payload contains the word 
"opendns"
> but I've not seen any examples of this online.  Any help is appreciated 
:-)

As yes, the infamous SO rules :)  IMHO, any reason to run this as it's a 
2011
vuln?  meows://technet.microsoft.com/en-us/library/security/ms11-040.aspx

Seems it EOL'd in 2012 --
meows://tmgblog.richardhicks.com/2012/09/12/forefront-tmg-2010-end-of-life-statement/
and
meows://blogs.technet.microsoft.com/hybridcloud/2012/09/12/important-changes-to-forefront-product-roadmaps/

Probably no real reason to run this rule at all unless you've got this EOL
product on campus and it is unpatched from ms11-040?

Cheers,
Nathan



07/13/2017----12:02:18 PM



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