Potential Privilege Escalation via Service Permissions Weakness

 1title: Potential Privilege Escalation via Service Permissions Weakness
 2id: 0f9c21f1-6a73-4b0e-9809-cb562cb8d981
 3status: test
 4description: Detect modification of services configuration (ImagePath, FailureCommand and ServiceDLL) in registry by processes with Medium integrity level
 5references:
 6    - https://speakerdeck.com/heirhabarov/hunting-for-privilege-escalation-in-windows-environment
 7    - https://pentestlab.blog/2017/03/31/insecure-registry-permissions/
 8author: Teymur Kheirkhabarov
 9date: 2019-10-26
10modified: 2024-12-01
11tags:
12    - attack.privilege-escalation
13    - attack.t1574.011
14logsource:
15    product: windows
16    category: process_creation
17detection:
18    selection:
19        IntegrityLevel:
20            - 'Medium'
21            - 'S-1-16-8192'
22        CommandLine|contains|all:
23            - 'ControlSet'
24            - 'services'
25        CommandLine|contains:
26            - '\ImagePath'
27            - '\FailureCommand'
28            - '\ServiceDll'
29    condition: selection
30falsepositives:
31    - Unknown
32level: high

References

• Hunting for Privilege Escalation in Windows Environment

  

  Slides from my talk at the OFFZONE 2018 conference (https://www.offzone.moscow/report/hunting-for-privilege-escalation-in-windows-environment/)

  
  Read More

• Insecure Registry Permissions

  

  In Windows environments when a service is registered with the system a new key is created in the registry which contains the binary path. Even though that this escalation vector is not very common …

  
  Read More

Related rules

• Possible Privilege Escalation via Weak Service Permissions
• Abuse of Service Permissions to Hide Services Via Set-Service
• Abuse of Service Permissions to Hide Services Via Set-Service - PS
• Service DACL Abuse To Hide Services Via Sc.EXE
• Service Registry Key Read Access Request