[Oisf-devel] strange FP on suricata v101/100

[Will Metcalf]

I will test... just super swamped right now...

Regards,

Will

On Wed, Aug 4, 2010 at 12:46 PM, rmkml <rmkml at free.fr> wrote:
> Hi,
> Anyone interested for testing please?
> Regards
> Rmkml
>
>
> On Sun, 1 Aug 2010, rmkml wrote:
>
>> Hi,
>> I have a strange FP with theses two sigs:
>> alert tcp any 80 -> any any (msg:"http reply 1"; flow:to_client,established;
>> content:"HTTP/1."; nocase; depth:7; content:!" 200 OK"; nocase; distance:1;
>> content:!" 206 Partial Content"; nocase; distance:1;
>> classtype:attempted-admin; sid:9014691; rev:1; )
>> alert tcp any 80 -> any any (msg:"http reply 2"; flow:to_client,established;
>> content:"HTTP/1."; content:" Expect"; nocase; within:20; distance:0;
>> classtype:misc-attack; sid:9014252; rev:1;)
>> suricata v101/100 generate two alerts:
>> 07/30/10-16:06:26.005780  [**] [1:9014691:1] http reply 1 [**]
>> [Classification: Attempted Administrator Privilege Gain] [Priority: 3] {6}
>> 66.249.92.104:80 -> 192.168.70.5:56913
>> 07/30/10-16:10:26.004807  [**] [1:9014691:1] http reply 1 [**]
>> [Classification: Attempted Administrator Privilege Gain] [Priority: 3] {6}
>> 66.249.92.104:80 -> 192.168.70.5:56913
>> but if you disable second sig/sid (9014252), only one alert fire.
>> Why second alert not fire if I disable second sig/sid please?
>> Contact if you need pcap file because private trafic.
>> If you want/confirm, Im open new ticket on redmine.
>> Regards
>> Rmkml
>>
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