""ET INFO Suspicious Empty Accept-Encoding Header""

SID: 2043026

Revision: 2

Class Type: unknown

Metadata: created_at 2022_12_28, deployment Perimeter, performance_impact Moderate, signature_severity Minor, updated_at 2023_05_02

Reference:

Protocol: tcp

Source Network: $HOME_NET

Source Port: any

Destination Network: $EXTERNAL_NET

Destination Port: $HTTP_PORTS

Flow: established,to_server

Contents:

  • Value: "Accept-Encoding|3a 20 0d 0a|"

Within:

PCRE:

Special Options:

  • http_header

  • nocase

  • fast_pattern

source