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

[rmkml]

Hi,
Nothing confirmed this case, but I have opened new ticket: 227.
Please check and maybe fix.
Regards
Rmkml


On Wed, 4 Aug 2010, rmkml 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
>> 
>