""ET EXPLOIT Zerologon Phase 2/3 - NetrServerAuthenticate2 Request with 0x00 Client Challenge and Sign and Seal Disabled (CVE-2020-1472) M1""

SID: 2035258

Revision: 2

Class Type: attempted-admin

Metadata: attack_target Server, created_at 2022_02_22, cve CVE_2020_1472, deployment Internal, performance_impact Significant, signature_severity Major, updated_at 2022_02_22

Reference:

Protocol: tcp

Source Network: any

Source Port: any

Destination Network: [$HTTP_SERVERS,$HOME_NET]

Destination Port: 1024:

Flow: established,to_server

Contents:

  • Value: "|05 00 00|" Depth: 3

  • Value: "|0f 00|" Depth: 2 Offset: 22

  • Value: "|00 00 00 00 00 00 00 00|"

  • Value: !"|00 00|"

Within: 2

PCRE:

Special Options:

  • fast_pattern

source