""ET EXPLOIT Possible MPC Sharj 3.11.1 - Arbitrary File Download Attempt""

SID: 2030115

Revision: 2

Class Type: attempted-admin

Metadata: attack_target Web_Server, created_at 2020_05_06, deployment Perimeter, performance_impact Low, signature_severity Major, updated_at 2020_05_06

Reference:

Protocol: tcp

Source Network: $EXTERNAL_NET

Source Port: any

Destination Network: $HTTP_SERVERS

Destination Port: $HTTP_PORTS

Flow: established,to_server

Contents:

  • Value: "GET"

  • Value: "/download.php?id="

  • Value: "L"

Within:

PCRE: "/\/download.php\?id=(?:==[A-Z0-9+/]{2}|=[A-Z0-9+/]{3}|[A-Z0-9+/]{4})(?:[A-Z0-9+/]{4})*(?:[A-Z0-9+/]{3})L$/Ui"

Special Options:

  • http_method

  • http_uri

  • fast_pattern

  • http_uri

source