""ET EXPLOIT Possible Zimbra Autodiscover Servlet XXE (CVE-2019-9670)""

SID: 2037040

Revision: 1

Class Type: attempted-admin

Metadata: attack_target Server, created_at 2022_06_20, cve CVE_2019_9670, deployment Perimeter, deployment Internal, signature_severity Major, tag Exploit, updated_at 2022_06_20, mitre_tactic_id TA0001, mitre_tactic_name Initial_Access, mitre_technique_id T1190, mitre_technique_name Exploit_Public_Facing_Application

Reference:

  • cve

  • 2019-9670

Protocol: tcp

Source Network: any

Source Port: any

Destination Network: [$HOME_NET,$HTTP_SERVERS]

Destination Port: $HTTP_PORTS

Flow: established,to_server

Contents:

  • Value: "POST"

  • Value: "/Autodiscover/Autodiscover.xml"

  • Value: "<!ENTITY|20|"

  • Value: "|20|SYSTEM|20 22|"

Within:

PCRE: "/^SYSTEM\s*\x22(?:file|https?)\x3a/Pi"

Special Options:

  • http_method

  • http_uri

  • http_client_body

  • http_client_body

  • fast_pattern

source