""ET EXPLOIT Xfinity Gateway - Remote Code Execution""

SID: 2030262

Revision: 2

Class Type: attempted-admin

Metadata: affected_product Linux, attack_target IoT, created_at 2020_06_08, deployment Perimeter, signature_severity Major, updated_at 2020_06_08, mitre_tactic_id TA0001, mitre_tactic_name Initial_Access, mitre_technique_id T1190, mitre_technique_name Exploit_Public_Facing_Application

Reference:

Protocol: tcp

Source Network: $EXTERNAL_NET

Source Port: $HTTP_PORTS

Destination Network: $HOME_NET

Destination Port: any

Flow: to_server,established

Contents:

  • Value: "POST"

  • Value: "/actionHandler/ajax_network_diagnostic_tools.php"

  • Value: "test_connectivity=true&destination_address=www.comcast.net|20 7c 7c 20|" Depth: 62

Within:

PCRE:

Special Options:

  • http_method

  • http_uri

  • fast_pattern

  • http_client_body

source