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Detection rules › Sigma

Potential CVE-2023-21554 QueueJumper Exploitation

Status
test
Severity
high
Log source
category process_creation, product windows
Author
Nasreddine Bencherchali (Nextron Systems)
Source
github.com/SigmaHQ/sigma

Detects potential exploitation of CVE-2023-21554 (dubbed QueueJumper)

MITRE ATT&CK coverage

TacticTechniques
ExecutionNo specific technique
Privilege EscalationNo specific technique

Telemetry coverage

ProviderRecord / event type
SysmonEvent ID 1: Process creation
Security-AuditingEvent ID 4688: A new process has been created.

Rule body

title: Potential CVE-2023-21554 QueueJumper Exploitation
id: 53207cc2-0745-4c19-bc72-80be1cc16b3f
status: test
description: Detects potential exploitation of CVE-2023-21554 (dubbed QueueJumper)
references:
    - https://research.checkpoint.com/2023/queuejumper-critical-unauthorized-rce-vulnerability-in-msmq-service/
author: Nasreddine Bencherchali (Nextron Systems)
date: 2023-04-12
tags:
    - attack.privilege-escalation
    - attack.execution
    - cve.2023-21554
    - detection.emerging-threats
logsource:
    product: windows
    category: process_creation
detection:
    selection:
        ParentImage|endswith: '\Windows\System32\mqsvc.exe'
        Image|endswith:
            - '\cmd.exe'
            - '\cscript.exe'
            - '\mshta.exe'
            - '\powershell.exe'
            - '\pwsh.exe'
            - '\regsvr32.exe'
            - '\rundll32.exe'
            - '\schtasks.exe'
            - '\wmic.exe'
            - '\wscript.exe'
            - '\wsl.exe'
    condition: selection
falsepositives:
    - Unknown
level: high

Stages and Predicates

Stage 0: condition

selection

Stage 1: selection

selection:
    ParentImage|endswith: '\Windows\System32\mqsvc.exe'
    Image|endswith:
        - '\cmd.exe'
        - '\cscript.exe'
        - '\mshta.exe'
        - '\powershell.exe'
        - '\pwsh.exe'
        - '\regsvr32.exe'
        - '\rundll32.exe'
        - '\schtasks.exe'
        - '\wmic.exe'
        - '\wscript.exe'
        - '\wsl.exe'

Indicators

These rows show field, operator, and value matches.

FieldKindValuesSearch
Imageends_with
  • \cmd.exe corpus 130 (sigma 130)
  • \cscript.exe corpus 72 (sigma 72)
  • \mshta.exe corpus 66 (sigma 66)
  • \powershell.exe corpus 179 (sigma 178, kusto 1)
  • \pwsh.exe corpus 165 (sigma 164, kusto 1)
  • \regsvr32.exe corpus 64 (sigma 64)
  • \rundll32.exe corpus 94 (sigma 94)
  • \schtasks.exe corpus 55 (sigma 55)
  • \wmic.exe corpus 62 (sigma 62)
  • \wscript.exe corpus 74 (sigma 74)
  • \wsl.exe corpus 11 (sigma 11)
field:"Image" kind:ends_with
ParentImageends_with
  • \Windows\System32\mqsvc.exe
field:"ParentImage" kind:ends_with value:"\Windows\System32\mqsvc.exe"