""ET POLICY Vulnerable Java Version 21.0.x Detected""

SID: 2049681

Revision: 4

Class Type: bad-unknown

Metadata: affected_product Java, attack_target Client_Endpoint, created_at 2023_12_13, deployment Perimeter, signature_severity Informational, updated_at 2024_07_18

Reference:

Protocol: tcp

Source Network: $HOME_NET

Source Port: any

Destination Network: $EXTERNAL_NET

Destination Port: $HTTP_PORTS

Flow: established,to_server

Contents:

  • Value: "|20|Java/21.0."

  • Value: !"4"

Within: 1

PCRE:

Special Options:

  • http_header

  • fast_pattern

  • http_header

source