""ET EXPLOIT Zimbra <8.8.11 - XML External Entity Injection/SSRF Attempt (CVE-2019-9621)""

SID: 2031562

Revision: 2

Class Type: attempted-user

Metadata: affected_product Web_Server_Applications, attack_target Client_Endpoint, created_at 2021_01_27, cve CVE_2021_2109, deployment Perimeter, signature_severity Major, updated_at 2021_01_27

Reference:

  • cve

  • 2021-2109

Protocol: tcp

Source Network: $EXTERNAL_NET

Source Port: any

Destination Network: $HOME_NET

Destination Port: $HTTP_PORTS

Flow: established,to_server

Contents:

  • Value: "POST"

  • Value: "/autodiscover"

  • Value: "<!DOCTYPE" Depth: 50

  • Value: "file:///etc/passwd"

  • Value: ""

  • Value: ""

Within:

PCRE:

Special Options:

  • http_method

  • nocase

  • http_uri

  • http_client_body

  • fast_pattern

  • http_client_body

  • http_client_body

  • http_client_body

source