""ET EXPLOIT Possible Gitlab CE/EE Image Parser RCE Inbound (CVE-2021-22205)""

SID: 2034455

Revision: 2

Class Type: attempted-admin

Metadata: attack_target Server, created_at 2021_11_13, cve CVE_2021_22205, deployment Perimeter, deployment Internal, signature_severity Major, tag Exploit, updated_at 2021_11_13, mitre_tactic_id TA0001, mitre_tactic_name Initial_Access, mitre_technique_id T1190, mitre_technique_name Exploit_Public_Facing_Application

Reference:

  • cve

  • 2021-22205

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: "/uploads/user"

  • Value: "Content-Type|3a 20|image/jpeg"

  • Value: "DJVMDIRM|00|"

  • Value: "DJVIANT"

  • Value: "|7b|"

  • Value: "|7d|"

Within: 400

PCRE:

Special Options:

  • http_method

  • http_uri

  • http_client_body

  • http_client_body

  • http_client_body

  • http_client_body

  • http_client_body

source