""ET EXPLOIT Possible Linksys WRT100/110 RCE Attempt (CVE-2013-3568)""

SID: 2027097

Revision: 2

Class Type: attempted-user

Metadata: attack_target IoT, created_at 2019_03_19, cve CVE_2013_3568, 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: "/ping.cgi" Depth: 9

  • Value: "pingstr=" Depth: 8

  • Value: "|3b|"

Within: 25

PCRE: "/^\/ping.cgi$/U"

Special Options:

  • http_method

  • http_uri

  • http_client_body

  • fast_pattern

  • http_client_body

source