""ET WEB_SPECIFIC_APPS Apache SkyWalking GraphQL SQL Injection Inbound (CVE-2020-13921)""

SID: 2033403

Revision: 2

Class Type: attempted-admin

Metadata: created_at 2021_07_24, cve CVE_2020_13921, updated_at 2021_08_16, mitre_tactic_id TA0001, mitre_tactic_name Initial_Access, mitre_technique_id T1190, mitre_technique_name Exploit_Public_Facing_Application

Reference:

  • cve

  • 2020-13921

Protocol: tcp

Source Network: any

Source Port: any

Destination Network: [$HOME_NET,$HTTP_SERVERS]

Destination Port: any

Flow: established,to_server

Contents:

  • Value: "POST"

  • Value: "/graphql"

  • Value: "|7b 22|query" Depth: 7

  • Value: "|27 29|"

Within:

PCRE: "/^\s?.{0,100}(?:SELECT|UNION|CHAR|LONGVARCHAR|SCHEMA|FROM|WHERE|IFNULL|INSERT|UPDATE)/R"

Special Options:

  • http_method

  • http_uri

  • fast_pattern

  • http_client_body

  • nocase

  • http_client_body

source