""ET POLICY Possible Autodiscover Credentials Leak via Basic Auth""

SID: 2034019

Revision: 2

Class Type: policy-violation

Metadata: affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_and_Server, created_at 2021_09_23, deployment Perimeter, signature_severity Informational, updated_at 2021_09_23

Reference:

• Link

Protocol: tcp

Source Network: $HOME_NET

Source Port: any

Destination Network: $EXTERNAL_NET

Destination Port: $HTTP_PORTS

Flow: established,to_server

Contents:

• Value: "GET"

• Value: "/autodiscover/autodiscover.xml"

• Value: "Authorization|3a 20|Basic|20|"

Within:

PCRE:

Special Options:

• http_method

• http_uri

• nocase

• fast_pattern

• http_header

source