Improper neutralization of special elements used in a command ('command injection') in Windows PowerShell allows an unauthorized attacker to execute code locally.
The following code is for security research and authorized testing only.
python
# CVE-2025-54100 PoC - PowerShell Command Injection
# Note: This is a conceptual PoC for educational purposes only
# DO NOT use for malicious purposes
# Example of vulnerable PowerShell command execution pattern
# The vulnerability exists when user input is not properly sanitized
# Vulnerable code pattern (conceptual):
# $userInput = Read-Host "Enter command"
# Invoke-Expression $userInput
# Example malicious input that could exploit the vulnerability:
$malicious_input = "; calc.exe; whoami"
# This would execute additional commands beyond the intended scope
# Example of safer approach using Start-Process with argument validation:
function Safe-ExecuteCommand {
param(
[string]$Command
)
# Validate and sanitize input before execution
if ($Command -match '^[a-zA-Z0-9\s\-_]+$') {
Start-Process -FilePath "cmd.exe" -ArgumentList "/c", $Command -NoNewWindow
} else {
Write-Warning "Invalid characters detected in command"
}
}
# Example detection pattern for security monitoring:
# Look for suspicious PowerShell execution with command chaining
$detection_pattern = ".*;.*|.*\|.*|.*&&.*"
# Monitor for commands containing special characters that may indicate injection attempts