Snort mailing list archives

Re: rule for cacti failed login


From: Jeremy Hoel <jthoel () gmail com>
Date: Mon, 15 Sep 2014 11:35:36 -0600

the classtype of the rule is what is used when Snorby assigns severity.  As
for the message body, use pulledpork.pl and it will generate the proper sig
message mappings so that further messages will have a proper description.

On Mon, Sep 15, 2014 at 4:16 AM, Sharif Uddin <Sharif.Uddin () spectrumasa com>
wrote:

 I want to able to give a description for the when it appears in snorby.
How do I do that?



And also classify it as high severity?





alert tcp $HOME_NET any -> $HOME_NET any (msg:"Failed Apache Login";
content:"Invalid User Name/Password"; sid:1000000;
rev:1;classtype:attempted-admin;)









*From:* Jeremy Hoel [mailto:jthoel () gmail com]
*Sent:* 12 September 2014 18:32
*To:* Sharif Uddin
*Cc:* snort-users () lists sourceforge net
*Subject:* Re: [Snort-users] rule for cacti failed login



You can't do anything in the rule to change that. that is because the src
of the traffic that you are looking for (the error message) is the
webserver.. the client receives the traffic to know that the login is bad.



On Fri, Sep 12, 2014 at 4:39 PM, Sharif Uddin <
Sharif.Uddin () spectrumasa com> wrote:

Hello





I want to create a rule for failed login access on apache. Attached has
the tcpdump of the failed attempt. My rule is





alert tcp $HOME_NET any -> $HOME_NET any (msg:"failed apache login";
content:"Invalid User Name/Password"; sid:1000000; rev:1;)





this rule captures source as the web server. How do I amend this rule so
source is client











Sharif Uddin
*Development/Support Engineer*
-------------------

*Spectrum Geo Ltd*
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UNITED KINGDOM

Tel: +44 (0) 1483 730201
Fax: +44 (0) 1483 762620



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intended for the exclusive use of the party or parties to whom it is
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not an intended recipient, you are hereby notified that any viewing,
copying, disclosure or distribution of this information may be subject to
legal restriction or sanction. Please notify the sender immediately and
delete the original message without making any copies. Copyright in this
email and any attachments belong to Spectrum Geo Limited.
We cannot guarantee the security or confidentiality of email
communications. We do not accept any liability for losses or damages that
you may suffer as a result of your receipt of this email.
Email communication with Spectrum Geo Ltd., may be monitored as permitted
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Spectrum Geo Limited, is a limited company registered in England and
Wales. Registered number: 1979422. Registered office: 95 Aldwych, London
WC2B 4JF.

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