LoFP LoFP / proxy ssl certificate with subject modification

Techniques

Sample rules

ADCS Certificate Template Configuration Vulnerability with Risky EKU

Description

Detects certificate creation with template allowing risk permission subject and risky EKU

Detection logic

condition: (selection10 and selection11) or (selection20 and selection21)
selection10:
  EventID: 4898
  TemplateContent|contains:
  - 1.3.6.1.5.5.7.3.2
  - 1.3.6.1.5.2.3.4
  - 1.3.6.1.4.1.311.20.2.2
  - 2.5.29.37.0
selection11:
  TemplateContent|contains: CT_FLAG_ENROLLEE_SUPPLIES_SUBJECT
selection20:
  EventID: 4899
  NewTemplateContent|contains:
  - 1.3.6.1.5.5.7.3.2
  - 1.3.6.1.5.2.3.4
  - 1.3.6.1.4.1.311.20.2.2
  - 2.5.29.37.0
selection21:
  NewTemplateContent|contains: CT_FLAG_ENROLLEE_SUPPLIES_SUBJECT

ADCS Certificate Template Configuration Vulnerability

Description

Detects certificate creation with template allowing risk permission subject

Detection logic

condition: selection1 or selection2
selection1:
  EventID: 4898
  TemplateContent|contains: CT_FLAG_ENROLLEE_SUPPLIES_SUBJECT
selection2:
  EventID: 4899
  NewTemplateContent|contains: CT_FLAG_ENROLLEE_SUPPLIES_SUBJECT