""ET EXPLOIT Possible Linksys E1500/E2500 apply.cgi RCE Attempt""

SID: 2027099

Revision: 2

Class Type: attempted-user

Metadata: attack_target IoT, created_at 2019_03_19, deployment Perimeter, performance_impact Low, signature_severity Major, updated_at 2019_03_19

Reference:

Protocol: tcp

Source Network: $EXTERNAL_NET

Source Port: any

Destination Network: $HOME_NET

Destination Port: $HTTP_PORTS

Flow: established,to_server

Contents:

  • Value: "POST"

  • Value: "/apply.cgi" Depth: 10

  • Value: "submit_button=" Depth: 14

  • Value: "&submit_type=start_ping"

  • Value: "&ping_size="

  • Value: "|3b|"

Within: 30

PCRE:

Special Options:

  • http_method

  • http_uri

  • http_client_body

  • http_client_body

  • fast_pattern

  • http_client_body

  • http_client_body

source