├── LICENSE ├── PCS7Hardening.ps1 ├── README.md └── pcs7_rec.gif /LICENSE: -------------------------------------------------------------------------------- 1 | GNU GENERAL PUBLIC LICENSE 2 | Version 3, 29 June 2007 3 | 4 | Copyright (C) 2007 Free Software Foundation, Inc. 5 | Everyone is permitted to copy and distribute verbatim copies 6 | of this license document, but changing it is not allowed. 7 | 8 | Preamble 9 | 10 | The GNU General Public License is a free, copyleft license for 11 | software and other kinds of works. 12 | 13 | The licenses for most software and other practical works are designed 14 | to take away your freedom to share and change the works. By contrast, 15 | the GNU General Public License is intended to guarantee your freedom to 16 | share and change all versions of a program--to make sure it remains free 17 | software for all its users. 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It is safest 630 | to attach them to the start of each source file to most effectively 631 | state the exclusion of warranty; and each file should have at least 632 | the "copyright" line and a pointer to where the full notice is found. 633 | 634 | 635 | Copyright (C) 636 | 637 | This program is free software: you can redistribute it and/or modify 638 | it under the terms of the GNU General Public License as published by 639 | the Free Software Foundation, either version 3 of the License, or 640 | (at your option) any later version. 641 | 642 | This program is distributed in the hope that it will be useful, 643 | but WITHOUT ANY WARRANTY; without even the implied warranty of 644 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 645 | GNU General Public License for more details. 646 | 647 | You should have received a copy of the GNU General Public License 648 | along with this program. If not, see . 649 | 650 | Also add information on how to contact you by electronic and paper mail. 651 | 652 | If the program does terminal interaction, make it output a short 653 | notice like this when it starts in an interactive mode: 654 | 655 | Copyright (C) 656 | This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'. 657 | This is free software, and you are welcome to redistribute it 658 | under certain conditions; type `show c' for details. 659 | 660 | The hypothetical commands `show w' and `show c' should show the appropriate 661 | parts of the General Public License. Of course, your program's commands 662 | might be different; for a GUI interface, you would use an "about box". 663 | 664 | You should also get your employer (if you work as a programmer) or school, 665 | if any, to sign a "copyright disclaimer" for the program, if necessary. 666 | For more information on this, and how to apply and follow the GNU GPL, see 667 | . 668 | 669 | The GNU General Public License does not permit incorporating your program 670 | into proprietary programs. If your program is a subroutine library, you 671 | may consider it more useful to permit linking proprietary applications with 672 | the library. If this is what you want to do, use the GNU Lesser General 673 | Public License instead of this License. But first, please read 674 | . 675 | -------------------------------------------------------------------------------- /PCS7Hardening.ps1: -------------------------------------------------------------------------------- 1 | <# 2 | Developed by OTORIO LTD. - www.otorio.com 3 | Version 1.0 4 | Licensed under GPL V3 5 | #> 6 | 7 | <# 8 | .SYNOPSIS 9 | Tests SIMATIC PCS 7 security 10 | 11 | .DESCRIPTION 12 | Please run the script as Administrator 13 | Collects data from the following sources: 14 | * Windows Management Instrumentation (WMI) 15 | * Windows registry 16 | * Resultant Set of Policy (RsoP) 17 | * Windows security policy 18 | * PCS7 WebNavigator and Information server config files 19 | * Running services 20 | 21 | Analyzes the collected data in order to alert on security misconfigurations 22 | #> 23 | 24 | # Constants 25 | 26 | $PASSWORD_MIN_LENGTH = 14 27 | 28 | $POLICIES = @{'Turn off Application Telemetry'="Enabled"; 29 | 'Turn off Inventory Collector'="Enabled"; 30 | 'Do not sync'="Enabled"; 31 | 'Do not sync app settings'="Enabled"; 32 | 'Do not sync password'="Enabled"; 33 | 'Do not sync personalize'="Enabled"; 34 | 'Do not sync Apps'="Enabled"; 35 | 'Do not sync other Windows settings'="Enabled"; 36 | 'Do not sync desktop personalization'="Enabled"; 37 | 'Do not sync browser settings'="Enabled"; 38 | 'Do not sync on metered connections'="Enabled"; 39 | 'Do not sync start settings'="Enabled"; 40 | 'Turn off Automatic Root Certificates Update'="Enabled"; 41 | 'Turn off printing over HTTP'="Enabled"; 42 | 'Turn off downloading of print drivers over HTTP'="Enabled"; 43 | 'Turn off Windows Update device driver searching'="Enabled"; 44 | 'Turn off Windows Error Reporting'="Enabled"; 45 | 'Turn off access to the Store'="Enabled"; 46 | 'Turn off the Windows Messenger Customer Experience Improvement Program'="Enabled"; 47 | 'Turn off Windows Customer Experience Improvement Program'="Enabled"; 48 | 'Prevent the usage of OneDrive for file storage'="Enabled"; 49 | 'Turn off location'="Enabled"; 50 | 'Turn off Windows Location Provider'="Enabled"; 51 | 'Turn off downloading of game information'="Enabled"; 52 | 'Turn off game updates'="Enabled"; 53 | 'Allow Cortana'="Disabled"; 54 | 'Allow search and Cortana to use location'="Disabled"; 55 | 'Do not allow Web search'="Enabled"; 56 | 'Do not search the Web or display Web results in Search'="Enabled"; 57 | 'Allow indexing of encrypted files'="Disabled"} 58 | 59 | 60 | 61 | $REGISTRY_KEYS = @("HKLM\SOFTWARE\Wow6432Node\SIEMENS\SCS\Discovery\Security", 62 | "HKLM\SYSTEM\CurrentControlSet\Services\HTTP\Parameters") 63 | 64 | $WMI_HT = @{"Win32_LogicalShareAccess"=@("SecuritySetting","Trustee","AccessMask","Type")} 65 | 66 | $UNNECESSARY_SERVICES=@("Certificate distribution", 67 | "Diagnostic Policy Service", 68 | "Diagnostic Service Host", 69 | "Windows Color System", 70 | "Windows Connect Now - Config Registrar", 71 | "Performance Logs and Alerts", 72 | "Windows Presentation Foundation Font Cache") 73 | 74 | $WEB_CONFIG_PATHS=@("C:\Program Files (x86)\Siemens\WinCC\Webnavigator\Server\Web\web.config", 75 | "C:\inetpub\wwwroot\Siemens\InformationServer\web\web.config") 76 | 77 | 78 | # If these XPaths are not defined, we'll create an alert 79 | $WEB_POLICIES_ALERTS = @{ 80 | '//httpRuntime[@enableVersionHeader="false"]'='Version header is not disabled'; 81 | '//httpCookies[@httpOnlyCookies="true"][@requireSSL="true"]'= 'Unsecure cookies configuration'; 82 | '//customErrors[@mode="RemoteOnly"][@defaultRedirect="~/Error.aspx"]'='Unsecure errors configuration'; 83 | '//customHeaders/add[@name="X-Frame-Options"][@value="DENY"]'="X-Frame-Options header is not enabled"; 84 | '//customHeaders/add[@name="X-XSS-Protection"][@value="1; mode=block"]'="X-XSS-Protection header is not enabled"; 85 | '//customHeaders/add[@name="Content-Security-Policy"][@value="default-src ''none''; script-src ''self''; connect-src ''self''; img-src ''self''; style-src ''self'';"]'="Content Security Policy header is not enabled"; 86 | '//customHeaders/remove[@name="X-Powered-By"]'="X-Powered-By header is enabled" 87 | } 88 | 89 | 90 | # Global variables which will contain the alerts we find 91 | $alerts = [System.Collections.ArrayList]@() 92 | $complex_alerts = [System.Collections.Hashtable]@{} 93 | 94 | 95 | Function Get-RegistryValues{ 96 | Param( 97 | [Parameter(Mandatory=$true)] 98 | [Array]$registry_keys) 99 | 100 | $registry_results = @{} 101 | foreach($key in $registry_keys){ 102 | try{ 103 | $result = Get-ItemProperty -Path REGISTRY::$key -ErrorAction stop 104 | } 105 | catch{ 106 | Write-Host "$($_.Exception.Message)" 107 | } 108 | 109 | $registry_results.Add($key, $result) 110 | } 111 | return $registry_results 112 | } 113 | 114 | Function Get-RunningServices{ 115 | 116 | $services = Get-Service | Where-Object {$_.Status -eq "Running"} | Select-Object -Property DisplayName 117 | return $services 118 | } 119 | 120 | Function Get-WMI{ 121 | Param( 122 | [Parameter(Mandatory=$true)] 123 | [System.Collections.Hashtable]$wmi_ht) 124 | 125 | $wmi_results = @{} 126 | foreach($wmi_query in $wmi_ht.keys){ 127 | $result= Get-WmiObject -Class $wmi_query -Property $wmi_ht.$wmi_query 128 | $wmi_results.add($wmi_query, $result) 129 | } 130 | return $wmi_results 131 | 132 | } 133 | 134 | # https://devblogs.microsoft.com/scripting/use-powershell-to-work-with-any-ini-file/ 135 | Function Get-IniContent{ 136 | Param( 137 | [Parameter(Mandatory=$true)] 138 | [string]$FilePath) 139 | 140 | $ini = @{} 141 | switch -regex -file $FilePath 142 | { 143 | "^\[(.+)\]" # Section 144 | { 145 | $section = $matches[1] 146 | $ini[$section] = @{} 147 | $CommentCount = 0 148 | } 149 | "^(;.*)$" # Comment 150 | { 151 | $value = $matches[1] 152 | $CommentCount = $CommentCount + 1 153 | $name = “Comment” + $CommentCount 154 | $ini[$section][$name] = $value 155 | } 156 | "(.+?)\s*= (.*)" # Key 157 | { 158 | $name,$value = $matches[1..2] 159 | $ini[$section][$name] = $value 160 | } 161 | } 162 | return $ini 163 | } 164 | 165 | Function Get-Secpol{ 166 | Param( 167 | [Parameter(Mandatory=$true)] 168 | [string]$path) 169 | 170 | $out = secedit /export /cfg $path 2>&1 171 | if($out -match "The task has completed successfully*"){ 172 | $secpol = Get-IniContent -filepath $path 173 | Remove-Item $path 174 | return $secpol 175 | } 176 | Write-Warning "Error running secedit: $out" 177 | return $false 178 | 179 | } 180 | 181 | 182 | Function Get-RegistryRSoP{ 183 | Param( 184 | [Parameter(Mandatory=$true)] 185 | [string]$path) 186 | 187 | $error = gpresult /Scope Computer /X $path 2>&1 188 | if ($error -ne $null){ 189 | Write-Warning "Error collecting RSoP data: $error" 190 | return $false 191 | } 192 | [xml]$rsop = Get-File -Path $path 193 | Remove-Item $path 194 | if($rsop -eq $null){ 195 | Write-Host "Couldn't get RSoP data" 196 | return $null 197 | } 198 | $rsop_registry = Select-Xml -Xml $rsop -XPath '//q6:Policy' -Namespace @{'q6'='http://www.microsoft.com/GroupPolicy/Settings/Registry'} | Select-Object -Property Node 199 | return $rsop_registry 200 | } 201 | 202 | 203 | Function Get-File{ 204 | Param( 205 | [Parameter(Mandatory=$true)] 206 | [String] $path) 207 | $file = $null 208 | try{ 209 | $file = Get-Content -Path $path -ErrorAction stop 210 | } 211 | catch{ 212 | Write-Host "$($_.Exception.Message)" 213 | } 214 | return $file 215 | 216 | } 217 | 218 | 219 | Function Test-ShareAuthentication{ 220 | Param( 221 | [Parameter(Mandatory=$true)] 222 | [System.Collections.Hashtable]$wmi_results) 223 | 224 | $shares = $wmi_results["Win32_LogicalShareAccess"] 225 | if($shares -eq $null){ 226 | return $null 227 | } 228 | $complex_alerts.Add("Folders shared with everyone", [System.Collections.ArrayList]@()) 229 | foreach($share in $shares){ 230 | 231 | # The share is a folder, and Everyone account SID is in the Trustee attribute 232 | if(($share.Trustee -match '(.+)(\"S-1-1-0\")') -and $share.Type -eq 0){ 233 | if($share.SecuritySetting -match '.*Name="(?.*)".*'){ 234 | $name = $matches["name"] 235 | $complex_alerts["Folders shared with everyone"].Add($name) | Out-Null 236 | } 237 | } 238 | } 239 | 240 | } 241 | 242 | 243 | 244 | Function Test-PasswordMinimumLength{ 245 | param( 246 | [Parameter(Mandatory=$true)] 247 | [Hashtable]$secpol, 248 | 249 | [Parameter(Mandatory=$true)] 250 | [int]$length 251 | 252 | ) 253 | if($secpol["System Access"] -ne $null){ 254 | $min_length = $secpol["System Access"]["MinimumPasswordLength"] 255 | if($min_length -ne $null){ 256 | if($min_length -as [int] -lt $length){ 257 | $alerts.Add("Minimum number of characters in password is $min_length, while $length is recommended") | out-null 258 | } 259 | else{ 260 | $alerts.Add("Minimum number of characters in password is not defined") | out-null 261 | 262 | } 263 | } 264 | 265 | } 266 | } 267 | 268 | Function Test-PCS7Hardening{ 269 | param( 270 | [Parameter(Mandatory=$true)] 271 | [Hashtable]$policies, 272 | 273 | [Parameter(Mandatory=$true)] 274 | [AllowNull()] 275 | $rsop_registry 276 | ) 277 | $complex_alerts.add("Undefined policies",[System.Collections.ArrayList]@()) 278 | $complex_alerts.add("Misconfigured policies",[System.Collections.ArrayList]@()) 279 | foreach($policy in $policies.keys){ 280 | 281 | # There are no configured policies 282 | if($rsop_registry -eq $null){ 283 | $matched_policy = $null 284 | } 285 | else{ 286 | $matched_policy = $rsop_registry.Node | Where-Object {$_.Name -eq $policy} 287 | } 288 | 289 | # This policy is not configured 290 | if($matched_policy -eq $null){ 291 | $complex_alerts["Undefined policies"].add($policy) | Out-Null 292 | } 293 | else{ 294 | 295 | # The policy's state doesn't match the recommended state 296 | if($matched_policy.State -ne $policies[$policy]){ 297 | $complex_alerts["Misconfigured policies"].Add($policy) | Out-Null 298 | } 299 | } 300 | 301 | 302 | } 303 | 304 | # Allow telemetry policy is relevant for NT 10.0 or above 305 | if([Environment]::OSVersion.Version -ge (new-object 'Version' 10,0)){ 306 | $policy = "Allow Telemetry" 307 | $matched_policy = $rsop_registry.Node | Where-Object {$_.Name -eq $policy} 308 | if($matched_policy -eq $null){ 309 | $complex_alerts["Undefined policies"].add($policy) | Out-Null 310 | } 311 | elseif ($matched_policy.state -eq "Enabled" -and $matched_policy.DropDownList.Value.Name -ne "0 - Security [Enterprise Only]"){ 312 | $complex_alerts["Misconfigured policies"].Add($policy) | Out-Null 313 | } 314 | 315 | } 316 | 317 | # Check autoplay 318 | $policy = "Turn off Autoplay" 319 | $matched_policy = $rsop_registry.Node | Where-Object {$_.Name -eq $policy} 320 | if($matched_policy -eq $null){ 321 | $complex_alerts["Undefined policies"].add($policy) | Out-Null 322 | } 323 | elseif ($matched_policy.state -eq "Disabled" -or $matched_policy.DropDownList.Value.Name -ne "All drives"){ 324 | $complex_alerts["Misconfigured policies"].Add($policy) | Out-Null 325 | } 326 | } 327 | 328 | 329 | Function Test-PasswordComplexity{ 330 | param( 331 | [Parameter(Mandatory=$true)] 332 | [Hashtable]$secpol 333 | ) 334 | if($secpol["System Access"] -ne $null){ 335 | $complexity = $secpol["System Access"]["PasswordComplexity"] 336 | if($complexity -eq $null -or ($complexity -ne "1")){ 337 | $alerts.Add("Password complexity is not enforced") | out-null 338 | } 339 | 340 | } 341 | 342 | } 343 | 344 | Function Test-PasswordClearText{ 345 | param( 346 | [Parameter(Mandatory=$true)] 347 | [Hashtable]$secpol 348 | ) 349 | if($secpol["System Access"] -ne $null){ 350 | $complexity = $secpol["System Access"]["ClearTextPassword"] 351 | 352 | # Cleartext password is enabled 353 | if ($complexity -eq $null -or $complexity -ne "0"){ 354 | $alerts.Add("Cleartext password is enabled") 355 | } 356 | } 357 | 358 | } 359 | 360 | 361 | Function Test-PCS7EncryptedCommunication{ 362 | param( 363 | [Parameter(Mandatory=$true)] 364 | [Hashtable]$registry_results 365 | ) 366 | 367 | if($registry_results["HKLM\SOFTWARE\Wow6432Node\SIEMENS\SCS\Discovery\Security"] -ne $null){ 368 | $security_level = $registry_results["HKLM\SOFTWARE\Wow6432Node\SIEMENS\SCS\Discovery\Security"].Level 369 | if($security_level -eq 0){ 370 | $alerts.Add("Encrypted communication between OS systems is not enabled") 371 | } 372 | } 373 | 374 | } 375 | 376 | Function Test-PCS7RunningWithNonAdmin{ 377 | 378 | # Get the user running WinCC Runtime 379 | $proc = Get-WmiObject -Filter 'name="pdlrt.exe"' win32_process | Select-Object Name,@{n='Owner';e={$_.GetOwner().Domain + '\' + $_.GetOwner().User}}; 380 | 381 | # The process is running 382 | If ($proc -ne $null) { 383 | $owner = $proc.Owner 384 | $admins = Get-localadmin 385 | $match = $admins | Where {$_ -eq $owner} 386 | 387 | # An administrator account is running the process 388 | If ($match -ne $null) { 389 | $alerts.Add("WinCC runtime running with admin user: $owner") | Out-Null 390 | } 391 | } 392 | } 393 | 394 | Function Test-PCS7UnnecessaryServices{ 395 | param( 396 | [Parameter(Mandatory=$true)] 397 | $services 398 | ) 399 | 400 | $complex_alerts.add("Unneccessary services running",[System.Collections.ArrayList]@()) 401 | 402 | foreach($service in $UNNECESSARY_SERVICES){ 403 | if($services | Where {$_.DisplayName.Contains($service)}){ 404 | $complex_alerts["Unneccessary services running"].Add($service) | Out-Null 405 | } 406 | } 407 | } 408 | 409 | 410 | Function Write-Results{ 411 | 412 | foreach($alert in $alerts){ 413 | Write-Host "* $alert" 414 | } 415 | foreach($alert in $complex_alerts.Keys){ 416 | if($complex_alerts[$alert].Count -gt 0){ 417 | Write-Host "`n* $alert :" 418 | foreach($subalert in $complex_alerts[$alert]){ 419 | Write-Host "`t$subalert" 420 | } 421 | 422 | } 423 | } 424 | } 425 | 426 | Function Test-WebHardening{ 427 | param( 428 | [Parameter(Mandatory=$true)] 429 | [Hashtable]$web_ht, 430 | 431 | [Parameter(Mandatory=$true)] 432 | [Hashtable]$registry_results) 433 | 434 | if($registry_results["HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\HTTP\Parameters"] -eq $null -or 435 | $registry_results["HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\HTTP\Parameters"].DisableServerHeader -eq 0){ 436 | $alerts.add("Server header is not disabled") | out-null 437 | } 438 | 439 | foreach($webpath in $web_ht.keys){ 440 | $webconfig = [xml]$web_ht[$webpath] 441 | $web_alerts = [System.Collections.ArrayList]@() 442 | foreach($policy in $WEB_POLICIES_ALERTS.keys){ 443 | $info = select-xml -Xml $webconfig -XPath $policy 444 | if($info -eq $null){ 445 | $web_alerts.add($web_policies_alerts[$policy]) | out-null 446 | } 447 | } 448 | 449 | # Found some alerts, update complex_alerts 450 | if($web_alerts.Count -gt 0){ 451 | $complex_alerts.Add($webpath, $web_alerts) 452 | } 453 | } 454 | } 455 | 456 | Function Get-LocalAdmin{ 457 | 458 | $admins = [System.Collections.ArrayList]@() 459 | $admin_groups = get-wmiobject -query "select * from win32_groupuser where GroupComponent=""Win32_Group.Domain='$env:computername',Name='administrators'""" 460 | $admin_groups | ForEach-Object {$_.partcomponent -match ".+Domain\=(.+)\,Name\=(.+)$" > $null 461 | $admins.add($matches[1].trim('"') + "\" + $matches[2].trim('"')) | out-null 462 | } 463 | return $admins 464 | } 465 | Write-Host "`n" 466 | Write-Host "##################################" 467 | Write-Host "SIMATIC PCS 7 Hardening Tool" 468 | Write-Host "Created by OTORIO - www.otorio.com" 469 | Write-Host "##################################" 470 | Write-Host "`n" 471 | 472 | write-host "Fetching RSoP data" 473 | $rsop_registry = Get-RegistryRSoP "\\localhost\admin$\gpresult.xml" 474 | 475 | Write-Host "Fetching registry data" 476 | $registry_results = Get-RegistryValues -registry_keys $REGISTRY_KEYS 477 | 478 | Write-host "Fetching service information" 479 | $services = Get-RunningServices 480 | 481 | Write-Host "Fetching WMI data, may take a while" 482 | $wmi_results = Get-WMI -wmi_ht $WMI_HT 483 | 484 | Write-host "Fetching security policy data" 485 | $secpol = Get-Secpol -path "\\localhost\admin$\seccfg.conf" 486 | 487 | Write-Host "Fetching web server configuration" 488 | $web_files = [System.Collections.HashTable]@{} 489 | foreach ($path in $WEB_CONFIG_PATHS){ 490 | $file = Get-File -path $path 491 | if ($file -ne $null){ 492 | $web_files.Add($path, $file) 493 | } 494 | } 495 | 496 | 497 | Write-Host "Analyzing data`n" 498 | Write-Host "Found issues: `n" 499 | 500 | # Get-RegistryRsop was successful 501 | if ($rsop_registry -ne $false){ 502 | Test-PCS7Hardening -policies $POLICIES -rsop_registry $rsop_registry 503 | } 504 | Test-ShareAuthentication -wmi_results $wmi_results 505 | 506 | # Get-SecPol was successful 507 | if ($secpol -ne $false){ 508 | Test-PasswordMinimumLength -secpol $secpol -length $PASSWORD_MIN_LENGTH 509 | Test-PasswordComplexity -secpol $secpol 510 | Test-PasswordClearText $secpol 511 | } 512 | 513 | Test-PCS7EncryptedCommunication $registry_results 514 | Test-PCS7RunningWithNonAdmin 515 | Test-PCS7UnnecessaryServices -services $services 516 | Test-WebHardening -web_ht $web_files -registry_results $registry_results 517 | Write-Results 518 | 519 | 520 | -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | # Siemens Simatic PCS 7 Hardening Tool 2 | Version 1.0 3 | ## Overview 4 | Powershell script for assessing the security configurations of Siemens - SIMATIC PCS 7 OS client, OS Server or Engineering station 5 | 6 | ## Dependencies 7 | None! The script is Powershell 2.0 compatible. 8 | Powershell >=2.0 is pre-installed on every Windows since Windows 7 and Windows Server 2008R2.\ 9 | The tool was tested on: 10 | * Windows 7 11 | * Windows Server 2012 R2 12 | * Windows 10 13 | * Windows Server 2016 14 | 15 | 16 | ## Usage 17 | Run the script as an administrator. 18 | 19 | ## Demo 20 | ![](./pcs7_rec.gif) 21 | 22 | ## Description 23 | Collects data from the following sources: 24 | * Windows Management Instrumentation (WMI) 25 | * Windows registry 26 | * Resultant Set of Policy (RsoP) 27 | * Security Policy 28 | * PCS7 WebNavigator and Information server configuration files 29 | * Running services 30 | 31 | Analyzes the collected data according to OTORIO's profound research on Simatic PCS 7 security and hardening. 32 | The research is based on 33 | * https://support.industry.siemens.com/cs/document/109782722/simatic-process-control-system-pcs-7-compendium-part-f-industrial-security-(v9-0)-?dti=0&lc=en-WW 34 | * https://support.industry.siemens.com/cs/document/60119725/simatic-process-control-system-pcs-7-security-concept-pcs-7-wincc-(basic)?dti=0&lc=en-WW 35 | 36 | You should consult these documents in order to resolve the alerts which the tool notifies on. 37 | 38 | ## Insights 39 | 40 | | # | Insight | Data source | Details | 41 | |----|-----------------------------------------------------------|--------------------|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------| 42 | | 1 | GPO is not strict enough | RSoP | See table below | 43 | | 2 | Some folders are shared with everyone | WMI | Permissive sharing rights put your factory at risk. See Otorio's research https://www.otorio.com/blog/two-critical-configuration-issues-discovered-in-siemens-dcs-system/ | 44 | | 3 | Password minimum length | Security Policy | The password length should be at least 14 characters | 45 | | 4 | Password complexity | Security Policy | Password complexity policy should be enforced | 46 | | 5 | Password cleartext | Security Policy | Forbid storing windows passwords as cleartext | 47 | | 6 | Encrypted communication between OS systems is not enabled | Registry | If you enable this policy, only systems with the same Pre Shared Key(PSK) can communicate with each other via PCS 7 mechanisms | 48 | | 7 | WinCC running with an administrator account | WMI | Administrative rights are not needed for operation of PCS 7 . | 49 | | 8 | Unnecessary services are running | Powershell command | These services are unnecessary for the operation of the system and therefore should be disabled | 50 | | 9 | Server header is not disabled | Registry | This header specifies the web server version. This is a piece of information which attackers look for in the reconnaissance phase, and therefore the server shouldn't send it when replying | 51 | | 10 | httpOnlyCookies is not enabled | web.config | Enabling this header makes cookies inaccessible to the JavaScript Document.cookie API, which prevents sending them using XSS attack | 52 | | 11 | customErrors is not enabled | web.config | When this header is enabled, detailed errors are shown only to local users. Remote users are redirected to a custom error page | 53 | | 12 | X-Frame-Options header is not enabled | web.config | When enabled, this header provides clickjacking protection by not allowing rendering of a page in a frame | 54 | | 13 | X-XSS-Protection header is not enabled | web.config | When this header is enabled, pages aren't loaded when they detect reflected cross-site scripting (XSS) attacks. | 55 | | 14 | Content Security Policy header is not enabled | web.config | The HTTP Content-Security-Policy response header helps guard against XSS attacks | 56 | | 15 | X-Powered-By header is enabled | web.config | Indicates that the website is "powered by ASP.NET." | 57 | 58 | ## Group policies for Insight #1 59 | | # | Policy | Recommended state | 60 | |----|------------------------------------------------------------------------|---------------------------| 61 | | 1 | Turn off Application Telemetry | Enabled | 62 | | 2 | Turn off Inventory Collector | Enabled | 63 | | 3 | Do not sync | Enabled | 64 | | 4 | Do not sync app settings | Enabled | 65 | | 5 | Do not sync password | Enabled | 66 | | 6 | Do not sync personalize | Enabled | 67 | | 7 | Do not sync Apps | Enabled | 68 | | 8 | Do not sync other Windows settings | Enabled | 69 | | 9 | Do not sync desktop personalization | Enabled | 70 | | 10 | Do not sync browser settings | Enabled | 71 | | 11 | Do not sync on metered connections | Enabled | 72 | | 12 | Do not sync start settings | Enabled | 73 | | 13 | Turn off Automatic Root Certificates Update | Enabled | 74 | | 14 | Turn off printing over HTTP | Enabled | 75 | | 15 | Turn off downloading of print drivers over HTTP | Enabled | 76 | | 16 | Turn off Windows Update device driver searching | Enabled | 77 | | 17 | Turn off Windows Error Reporting | Enabled | 78 | | 18 | Turn off access to the Store | Enabled | 79 | | 19 | Turn off the Windows Messenger Customer Experience Improvement Program | Enabled | 80 | | 20 | Prevent the usage of OneDrive for file storage | Enabled | 81 | | 21 | Turn off location | Enabled | 82 | | 22 | Turn off Windows Location Provider | Enabled | 83 | | 23 | Turn off downloading of game information | Enabled | 84 | | 24 | Turn off game updates | Enabled | 85 | | 25 | Allow Cortana | Disabled | 86 | | 26 | Allow search and Cortana to use location | Disabled | 87 | | 27 | Do not allow Web search | Enabled | 88 | | 28 | Do not search the Web or display Web results in Search | Enabled | 89 | | 29 | Allow indexing of encrypted files | Disabled | 90 | | 30 | Allow Telemetry | Enabled - Enterprise Only | 91 | | 31 | Turn off Autoplay | Enabled on all drives | 92 | 93 | ## Authors 94 | Amit Porat, Roman Dvorkin, Yuval Ardon, Uri Sade from OTORIO's Research Team. 95 | 96 | 97 | For any questions/suggestions feel free to contact us at 98 | -------------------------------------------------------------------------------- /pcs7_rec.gif: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/otoriocyber/PCS7-Hardening-Tool/7879c34920a78f958374b49c14a0cd502f647405/pcs7_rec.gif --------------------------------------------------------------------------------