safe-dll-search-mode-disabled: Safe DLL Search Mode Disabled

2025-08-01 Safe DLL Search Mode Disabled PoC Public

Description

Determines if Safe DLL search mode is disabled.

PoC

id: safe-dll-search-mode-disabled

info:
  name: Safe DLL Search Mode Disabled
  author: princechaddha
  severity: high
  description: Determines if Safe DLL search mode is disabled.
  impact: |
    Disabling Safe DLL search mode may allow attackers to load malicious DLLs from untrusted locations.
  remediation: |
    Enable Safe DLL search mode by setting the SafeDllSearchMode registry key to 1.
  tags: windows,dll,code,windows-audit

self-contained: true

code:
  - pre-condition: |
      IsWindows();
    engine:
      - powershell
      - powershell.exe
    args:
      - -ExecutionPolicy
      - Bypass
    pattern: "*.ps1"
    source: |
      $dllSearchMode = Get-ItemProperty -Path 'HKLM:\System\CurrentControlSet\Control\Session Manager' -Name 'SafeDllSearchMode'
      Write-Host "SafeDllSearchMode: $($dllSearchMode.SafeDllSearchMode)"

    matchers:
      - type: word
        words:
          - "SafeDllSearchMode: 0"
# digest: 4a0a0047304502202657d8ed33cd0bec531ba2330e27bda71b63f0e97f5f39087bbcf8fb330073ff022100b19b8c90623fd7e6d3cff204727641ce78be478d6b1489f482a41fe73bca530d:922c64590222798bb761d5b6d8e72950

# Visit https://trap.biu.life/ to view exploit trends for this vulnerability.

References

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