""ET WEB_SPECIFIC_APPS Hadoop YARN ResourceManager Unauthenticated Command Execution""

SID: 2025840

Revision: 2

Class Type: attempted-user

Metadata: attack_target Web_Server, created_at 2018_07_16, deployment Datacenter, performance_impact Low, signature_severity Major, updated_at 2018_07_16

Reference:

• Link

Protocol: tcp

Source Network: $EXTERNAL_NET

Source Port: any

Destination Network: $HTTP_SERVERS

Destination Port: $HTTP_PORTS

Flow: established,to_server

Contents:

• Value: "/ws/v1/cluster/apps"

• Value: "|22|application-type|22 3a 22|YARN|22|"

• Value: "|22 3a 7b 22|commands|22 3a 7b 22|command|22 3a 22|"

• Value: "base64"

Within:

PCRE: "/(?:f0VM|9FT|\/RU)/P"

Special Options:

• fast_pattern

• http_uri

• http_client_body

• http_client_body

• http_client_body

source