""ET WEB_SERVER Possible XXE SYSTEM ENTITY in POST BODY.""

SID: 2018056

Revision: 1

Class Type: trojan-activity

Metadata: created_at 2014_02_03, updated_at 2014_02_03

Reference:

Protocol: tcp

Source Network: $EXTERNAL_NET

Source Port: any

Destination Network: $HTTP_SERVERS

Destination Port: $HTTP_PORTS

Flow: established,to_server

Contents:

  • Value: "DOCTYPE"

  • Value: "SYSTEM"

  • Value: "ENTITY"

Within:

PCRE: "/^\s+?[^\s>]+?\s+?SYSTEM\s/Ri"

Special Options:

  • http_client_body

  • nocase

  • nocase

  • http_client_body

  • nocase

source