aiden
/
suricata
mirror of https://github.com/OISF/suricata
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity
You cannot select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
master
main-7.0.x
master-6.0.x
master-5.0.x
master-4.1.x
master-4.0.x
master-3.2.x
suricata-7.0.8
suricata-7.0.7
suricata-7.0.6
suricata-6.0.20
suricata-7.0.5
suricata-6.0.19
suricata-6.0.18
suricata-7.0.4
suricata-6.0.17
suricata-7.0.3
suricata-6.0.16
suricata-7.0.2
suricata-6.0.15
suricata-7.0.1
suricata-6.0.14
suricata-7.0.0
suricata-7.0.0-rc2
suricata-6.0.13
suricata-6.0.12
suricata-6.0.11
suricata-7.0.0-rc1
suricata-6.0.10
suricata-6.0.9
suricata-7.0.0-beta1
suricata-6.0.8
suricata-6.0.7
suricata-6.0.6
suricata-5.0.10
suricata-6.0.5
suricata-5.0.9
suricata-6.0.4
suricata-5.0.8
suricata-6.0.3
suricata-5.0.7
suricata-6.0.2
suricata-5.0.6
suricata-6.0.1
suricata-5.0.5
suricata-4.1.10
suricata-4.1.9
suricata-5.0.4
suricata-6.0.0
suricata-6.0.0-rc1
suricata-6.0.0-beta1
suricata-5.0.3
suricata-4.1.8
suricata-4.1.7
suricata-5.0.2
suricata-4.1.6
suricata-5.0.1
suricata-5.0.0
suricata-5.0.0-rc1
suricata-4.1.5
suricata-5.0.0-beta1
suricata-4.1.4
suricata-4.1.3
suricata-4.0.7
suricata-4.1.2
suricata-4.1.1
suricata-4.1.0
suricata-4.0.6
suricata-4.1.0-rc2
suricata-4.1.0-rc1
suricata-4.0.5
suricata-4.1.0-beta1
suricata-4.0.4
suricata-4.0.3
suricata-4.0.2
suricata-3.2.5
suricata-4.0.1
suricata-3.2.4
suricata-4.0.0
suricata-4.0.0-rc2
suricata-3.2.3
suricata-4.0.0-rc1
suricata-4.0.0-beta1
suricata-3.2.2
suricata-3.1.4
suricata-3.2.1
suricata-3.2
suricata-3.2RC1
suricata-3.1.3
suricata-3.2beta1
suricata-3.1.2
suricata-3.1.1
suricata-3.1
suricata-3.0.2
suricata-3.1RC1
suricata-3.0.1
suricata-3.0.1RC1
suricata-3.0
suricata-2.0.11
suricata-3.0RC3
suricata-3.0RC2
suricata-3.0RC1
suricata-2.0.10
suricata-2.0.9
suricata-2.1beta4
suricata-2.0.8
suricata-2.0.7
suricata-2.1beta3
suricata-2.0.6
suricata-2.0.5
suricata-2.1beta2
suricata-2.0.4
suricata-2.1beta1
suricata-2.0.3
suricata-2.0.2
suricata-2.0.1
suricata-2.0.1rc1
suricata-2.0
suricata-2.0rc3
suricata-2.0rc2
suricata-2.0rc1
suricata-2.0beta2
suricata-1.4.7
suricata-1.4.6
suricata-1.4.5
suricata-2.0beta1
suricata-1.4.4
suricata-1.4.3
suricata-1.4.2
suricata-1.4.1
suricata-1.3.6
suricata-1.4
suricata-1.3.5
suricata-1.4rc1
suricata-1.3.4
suricata-1.4beta3
suricata-1.3.3
suricata-1.4beta2
suricata-1.3.2
suricata-1.4beta1
suricata-1.3.1
suricata-1.3
suricata-1.3rc1
suricata-1.3beta2
suricata-1.3beta1
suricata-1.2.1
suricata-1.2
suricata-1.2rc1
suricata-1.2beta1
suricata-1.1.1
suricata-0.8.2
suricata-1.0.0
suricata-1.0.1
suricata-1.0.2
suricata-1.0.3
suricata-1.0.4
suricata-1.0.5
suricata-1.1
suricata-1.1beta1
suricata-1.1beta2
suricata-1.1beta3
suricata-1.1rc1
Branches Tags
${ item.name }
Create tag ${ searchTerm }
Create branch ${ searchTerm }
from '4165bf8951'
${ noResults }
suricata/rules
History
Victor Julien 61cdd9be6b dns: detect case of request flooding 
In the case where DNS requests are sent over the same flow w/o a
reply being received, we now set an event in the flow and refuse
to add more transactions to the state. This protects the DNS
handling from getting overloaded slowing down everything.

A new option to configure this behaviour was added:

app-layer:
  protocols:
    dnsudp:
       enabled: yes
       detection-ports:
         udp:
           toserver: 53
       request-flood: 750

The request-flood parameter can be 0 (disabling this feature) or a
positive integer. It defaults to 500.

This means that if 500 unreplied requests are seen in a row an event
is set. Rule 2240007 was added to dns-events.rules to match on this.
 		11 years ago
..
Makefile.am DNS: rename dns.rules to dns-events.rules, include it in yaml 12 years ago
decoder-events.rules vlan: add rule for new 'too many layers' event 12 years ago
dns-events.rules dns: detect case of request flooding 11 years ago
files.rules file handling: add example files.rules file 13 years ago
http-events.rules http: add new events for invalid host header and host part of uri 12 years ago
smtp-events.rules Add example smtp decoding events rules file. 13 years ago
stream-events.rules stream: handle extra different SYN/ACK 12 years ago
tls-events.rules Add decoder event rule for tls event "invalid_ssl_record", which will now be available "app-layer-event:tls.invalid_ssl_record". 12 years ago