""ET WEB_SPECIFIC_APPS Apache Struts memberAccess inbound OGNL injection remote code execution attempt""

SID: 2026035

Revision: 3

Class Type: attempted-admin

Metadata: affected_product Apache_Struts2, attack_target Client_Endpoint, created_at 2018_08_24, cve CVE_2018_11776, deployment Perimeter, signature_severity Major, updated_at 2019_01_14, mitre_tactic_id TA0001, mitre_tactic_name Initial_Access, mitre_technique_id T1190, mitre_technique_name Exploit_Public_Facing_Application

Reference:

  • cve

  • 2018-11776

Protocol: tcp

Source Network: $EXTERNAL_NET

Source Port: any

Destination Network: $HTTP_SERVERS

Destination Port: $HTTP_PORTS

Flow: to_server,established

Contents:

  • Value: "|23|_memberAccess"

  • Value: "new "

Within:

PCRE: "/new\s+(java|org|sun)/Ui"

Special Options:

  • http_uri

  • nocase

  • http_uri

source