""ET EXPLOIT Sophos Web Appliance Pre-Auth Command Injection Attempt (CVE-2023-1671)""

SID: 2049632

Revision: 1

Class Type: attempted-admin

Metadata: attack_target Client_Endpoint, created_at 2023_12_11, cve CVE_2023_1671, deployment Perimeter, deployment SSLDecrypt, confidence High, signature_severity Major, tag cve_2023_1671, updated_at 2023_12_11, mitre_tactic_id TA0008, mitre_tactic_name Lateral_Movement, mitre_technique_id T1210, mitre_technique_name Exploitation_Of_Remote_Services

Reference:

Protocol: tcp

Source Network: $EXTERNAL_NET

Source Port: $HTTP_PORTS

Destination Network: $HOME_NET

Destination Port: any

Flow: established,to_server

Contents:

  • Value: "POST"

  • Value: "|2f|index|2e|php|3f|c|3d|blocked|26|action|3d|continue"

  • Value: "args_reason=filetypewarn&url=" Depth: 29

  • Value: "&filetype="

  • Value: "&user_encoded="

Within:

PCRE:

Special Options:

  • http_method

  • http_uri

  • http_client_body

  • fast_pattern

  • http_client_body

  • http_client_body

source