""ET EXPLOIT Citrix Application Delivery Controller Arbitrary Code Execution Attempt Scanner Attempt - Server Response (CVE-2019-19781)""

SID: 2035111

Revision: 2

Class Type: attempted-admin

Metadata: attack_target Server, created_at 2022_02_05, cve CVE_2019_19781, deployment Perimeter, deployment Internal, signature_severity Major, tag Exploit, updated_at 2022_02_05, mitre_tactic_id TA0001, mitre_tactic_name Initial_Access, mitre_technique_id T1190, mitre_technique_name Exploit_Public_Facing_Application

Reference:

  • cve

  • 2019-19781

Protocol: tcp

Source Network: $HTTP_SERVERS

Source Port: any

Destination Network: any

Destination Port: any

Flow: established,to_client

Contents:

  • Value: "200"

  • Value: "Via|3a 20|NS-CACHE-"

  • Value: "|5b|global|5d|" Depth: 8

  • Value: "encrypt passwords"

Within:

PCRE:

Special Options:

  • http_stat_code

  • http_header

  • file_data

  • fast_pattern

source