""ET EXPLOIT Atlassian Confluence RCE Attempt Observed (CVE-2023-22527) M2""

SID: 2050543

Revision: 3

Class Type: attempted-admin

Metadata: affected_product Atlassian_Confluence, attack_target Server, created_at 2024_01_29, cve CVE_2023_22527, deployment Perimeter, deployment Internal, deployment SSLDecrypt, signature_severity Major, tag Exploit, updated_at 2024_06_23, mitre_tactic_id TA0001, mitre_tactic_name Initial_Access, mitre_technique_id T1190, mitre_technique_name Exploit_Public_Facing_Application

Reference:

  • cve

  • 2023-22527

Protocol: tcp

Source Network: $EXTERNAL_NET

Source Port: any

Destination Network: [$HOME_NET,$HTTP_SERVERS]

Destination Port: $HTTP_PORTS

Flow: established,to_server

Contents:

  • Value: "POST"

  • Value: ".vm"

  • Value: ".KEY_velocity.struts2"

  • Value: "%7b"

  • Value: "%7d"

Within:

PCRE: "/.vm$/U"

Special Options:

  • http_method

  • http_uri

  • http_client_body

  • fast_pattern

  • http_client_body

  • http_client_body

source