Add optional CMake build for winPEAS

Check PrintNightmare PointAndPrint policy

linPEAS/builder/linpeas_parts/1_system_information/15_CVE_2021_3560.sh

@@ -31,8 +31,8 @@
 # Small linpeas: 0
 
 if apt list --installed 2>/dev/null | grep -E 'polkit.*0\.105-26' | grep -qEv 'ubuntu1\.[1-9]' || \
-   yum list installed 2>/dev/null | grep -q 'polkit.*\(0\.117-2\|0\.115-6\)' || \
-   rpm -qa 2>/dev/null | grep -q 'polkit.*\(0\.117-2\|0\.115-6\)'; then
+   yum list installed 2>/dev/null | grep -qE 'polkit.*\(0\.117-2\|0\.115-6\|0\.11[3-9]\)' || \
+   rpm -qa 2>/dev/null | grep -qE 'polkit.*\(0\.117-2\|0\.115-6\|0\.11[3-9]\)'; then
     echo "Vulnerable to CVE-2021-3560" | sed -${E} "s,.*,${SED_RED_YELLOW},"
     echo ""
 fi

linPEAS/builder/linpeas_parts/1_system_information/16_Protections.sh

@@ -30,7 +30,7 @@
 # Functions Used: echo_not_found, print_2title, print_list, warn_exec
 # Global Variables:
 # Initial Functions:
-# Generated Global Variables: $ASLR, $hypervisorflag, $detectedvirt, $unpriv_userns_clone, $perf_event_paranoid, $mmap_min_addr, $ptrace_scope, $dmesg_restrict, $kptr_restrict, $unpriv_bpf_disabled
+# Generated Global Variables: $ASLR, $hypervisorflag, $detectedvirt, $unpriv_userns_clone, $perf_event_paranoid, $mmap_min_addr, $ptrace_scope, $dmesg_restrict, $kptr_restrict, $unpriv_bpf_disabled, $protected_symlinks, $protected_hardlinks
 # Fat linpeas: 0
 # Small linpeas: 0
 

linPEAS/builder/linpeas_parts/4_procs_crons_timers_srvcs_sockets/10_Services.sh

@@ -6,7 +6,7 @@
 # License: GNU GPL
 # Version: 1.2
 # Functions Used: echo_not_found, print_2title, print_info, print_3title
-# Global Variables: $EXTRA_CHECKS, $SEARCH_IN_FOLDER, $IAMROOT, $WRITABLESYSTEMDPATH
+# Global Variables: $EXTRA_CHECKS, $IAMROOT, $SEARCH_IN_FOLDER, $TIMEOUT, $WRITABLESYSTEMDPATH
 # Initial Functions:
 # Generated Global Variables: $service_unit, $service_path, $service_content, $finding, $findings, $service_file, $exec_path, $exec_paths, $service, $line, $target_file, $target_exec, $relpath1, $relpath2
 # Fat linpeas: 0
@@ -178,7 +178,11 @@ if ! [ "$SEARCH_IN_FOLDER" ]; then
   if [ "$EXTRA_CHECKS" ]; then
     echo ""
     print_3title "Service versions and status:"
-    (service --status-all || service -e || chkconfig --list || rc-status || launchctl list) 2>/dev/null || echo_not_found "service|chkconfig|rc-status|launchctl"
+    if [ "$TIMEOUT" ]; then
+      $TIMEOUT 30 sh -c "(service --status-all || service -e || chkconfig --list || rc-status || launchctl list) 2>/dev/null" || echo_not_found "service|chkconfig|rc-status|launchctl"
+    else
+      (service --status-all || service -e || chkconfig --list || rc-status || launchctl list) 2>/dev/null || echo_not_found "service|chkconfig|rc-status|launchctl"
+    fi
   fi
 
   # Check systemd path writability
@@ -190,4 +194,4 @@ if ! [ "$SEARCH_IN_FOLDER" ]; then
   fi
 
   echo ""
-fi
+fi

linPEAS/builder/linpeas_parts/6_users_information/7_Sudo_l.sh

@@ -8,7 +8,7 @@
 # Functions Used: echo_not_found, print_2title, print_info
 # Global Variables:$IAMROOT, $PASSWORD, $sudoB, $sudoG, $sudoVB1, $sudoVB2 
 # Initial Functions:
-# Generated Global Variables:
+# Generated Global Variables: $secure_path_line
 # Fat linpeas: 0
 # Small linpeas: 1
 

linPEAS/builder/src/linpeasBuilder.py

@@ -405,7 +405,7 @@ class LinpeasBuilder:
                 name = entry["name"]
                 caseinsensitive = entry.get("caseinsensitive", False)
                 regex = entry["regex"]
-                regex = regex.replace('"', '\\"').strip()
+                regex = regex.replace("\\", "\\\\").replace('"', '\\"').strip()
                 falsePositives = entry.get("falsePositives", False)
 
                 if falsePositives:

winPEAS/winPEASbat/winPEAS.bat

@@ -71,7 +71,7 @@ CALL :T_Progress 2
 :ListHotFixes
 where wmic >nul 2>&1
 if %errorlevel% equ 0 (
-    wmic qfe get Caption,Description,HotFixID,InstalledOn | more
+    wmic qfe get Caption,Description,HotFixID,InstalledOn
 ) else (
     powershell -command "Get-HotFix | Format-Table -AutoSize"
 )
@@ -204,7 +204,7 @@ CALL :T_Progress 1
 CALL :ColorLine " %E%33m[+]%E%97m Registered Anti-Virus(AV)"
 where wmic >nul 2>&1
 if %errorlevel% equ 0 (
-    WMIC /Node:localhost /Namespace:\\root\SecurityCenter2 Path AntiVirusProduct Get displayName /Format:List | more
+    WMIC /Node:localhost /Namespace:\\root\SecurityCenter2 Path AntiVirusProduct Get displayName /Format:List
 ) else (
     powershell -command "Get-CimInstance -Namespace root/SecurityCenter2 -ClassName AntiVirusProduct | Select-Object -ExpandProperty displayName"
 ) 
@@ -238,7 +238,7 @@ CALL :ColorLine " %E%33m[+]%E%97m MOUNTED DISKS"
 ECHO.   [i] Maybe you find something interesting
 where wmic >nul 2>&1
 if %errorlevel% equ 0 (
-    wmic logicaldisk get caption | more
+    wmic logicaldisk get caption
 ) else (
     fsutil fsinfo drives
 )
@@ -670,7 +670,7 @@ if "%long%" == "true" (
 	ECHO.
 	where wmic >nul 2>&1
 	if !errorlevel! equ 0 (
-		for /f %%x in ('wmic logicaldisk get name ^| more') do (
+		for /f %%x in ('wmic logicaldisk get name') do (
 			set tdrive=%%x
 			if "!tdrive:~1,2!" == ":" (
 				%%x

winPEAS/winPEASexe/CMakeLists.txt

@@ -0,0 +1,26 @@
+cmake_minimum_required(VERSION 3.16)
+project(winPEAS_dotnet NONE)
+
+set(PROJECT_FILE "${CMAKE_CURRENT_SOURCE_DIR}/winPEAS.csproj")
+
+find_program(DOTNET_EXECUTABLE dotnet)
+find_program(MSBUILD_EXECUTABLE msbuild)
+find_program(XBUILD_EXECUTABLE xbuild)
+
+if(DOTNET_EXECUTABLE)
+  set(BUILD_TOOL "${DOTNET_EXECUTABLE}")
+  set(BUILD_ARGS build "${PROJECT_FILE}" -c Release)
+elseif(MSBUILD_EXECUTABLE)
+  set(BUILD_TOOL "${MSBUILD_EXECUTABLE}")
+  set(BUILD_ARGS "${PROJECT_FILE}" /p:Configuration=Release)
+elseif(XBUILD_EXECUTABLE)
+  set(BUILD_TOOL "${XBUILD_EXECUTABLE}")
+  set(BUILD_ARGS "${PROJECT_FILE}" /p:Configuration=Release)
+else()
+  message(FATAL_ERROR "dotnet, msbuild, or xbuild is required to build winPEAS")
+endif()
+
+add_custom_target(winpeas ALL
+  COMMAND ${BUILD_TOOL} ${BUILD_ARGS}
+  WORKING_DIRECTORY "${CMAKE_CURRENT_SOURCE_DIR}"
+)

winPEAS/winPEASexe/winPEAS/Checks/SystemInfo.cs

@@ -88,6 +88,7 @@ namespace winPEAS.Checks
                 PrintLocalGroupPolicy,
                 PrintPotentialGPOAbuse,
                 AppLockerHelper.PrintAppLockerPolicy,
+                PrintPrintNightmarePointAndPrint,
                 PrintPrintersWMIInfo,
                 PrintNamedPipes,
                 PrintNamedPipeAbuseCandidates,
@@ -836,6 +837,39 @@ namespace winPEAS.Checks
             }
         }
 
+        private static void PrintPrintNightmarePointAndPrint()
+        {
+            Beaprint.MainPrint("PrintNightmare PointAndPrint Policies");
+            Beaprint.LinkPrint("https://itm4n.github.io/printnightmare-exploitation/", "Check PointAndPrint policy hardening");
+
+            try
+            {
+                string key = @"Software\\Policies\\Microsoft\\Windows NT\\Printers\\PointAndPrint";
+                var restrict = RegistryHelper.GetDwordValue("HKLM", key, "RestrictDriverInstallationToAdministrators");
+                var noWarn = RegistryHelper.GetDwordValue("HKLM", key, "NoWarningNoElevationOnInstall");
+                var updatePrompt = RegistryHelper.GetDwordValue("HKLM", key, "UpdatePromptSettings");
+
+                if (restrict == null && noWarn == null && updatePrompt == null)
+                {
+                    Beaprint.NotFoundPrint();
+                    return;
+                }
+
+                Beaprint.NoColorPrint($"      RestrictDriverInstallationToAdministrators: {restrict}\n" +
+                                      $"      NoWarningNoElevationOnInstall: {noWarn}\n" +
+                                      $"      UpdatePromptSettings: {updatePrompt}");
+
+                if (restrict == 0 && noWarn == 1 && updatePrompt == 2)
+                {
+                    Beaprint.BadPrint("      [!] Potentially vulnerable to PrintNightmare misconfiguration");
+                }
+            }
+            catch (Exception ex)
+            {
+                Beaprint.PrintException(ex.Message);
+            }
+        }
+
         private static void PrintPrintersWMIInfo()
         {
             Beaprint.MainPrint("Enumerating Printers (WMI)");

winPEAS/winPEASexe/winPEAS/Info/UserInfo/SAM/Structs.cs

@@ -16,6 +16,10 @@ namespace winPEAS.Info.UserInfo.SAM
         {
             get
             {
+                if (_maxPasswordAge == long.MinValue)
+                {
+                    return TimeSpan.MinValue;
+                }
                 return -new TimeSpan(_maxPasswordAge);
             }
             set
@@ -28,6 +32,10 @@ namespace winPEAS.Info.UserInfo.SAM
         {
             get
             {
+                if (_minPasswordAge == long.MinValue)
+                {
+                    return TimeSpan.MinValue;
+                }
                 return -new TimeSpan(_minPasswordAge);
             }
             set

winPEAS/winPEASexe/winPEAS/KnownFileCreds/Putty.cs

@@ -88,6 +88,10 @@ namespace winPEAS.KnownFileCreds
                     if (SID.StartsWith("S-1-5") && !SID.EndsWith("_Classes"))
                     {
                         string[] subKeys = RegistryHelper.GetRegSubkeys("HKU", string.Format("{0}\\Software\\SimonTatham\\PuTTY\\Sessions\\", SID));
+                        if (subKeys.Length == 0)
+                        {
+                            subKeys = RegistryHelper.GetRegSubkeys("HKU", string.Format("{0}\\Software\\SimonTatham\\PuTTY\\Sessions", SID));
+                        }
 
                         foreach (string sessionName in subKeys)
                         {
@@ -129,6 +133,10 @@ namespace winPEAS.KnownFileCreds
             else
             {
                 string[] subKeys = RegistryHelper.GetRegSubkeys("HKCU", "Software\\SimonTatham\\PuTTY\\Sessions\\");
+                if (subKeys.Length == 0)
+                {
+                    subKeys = RegistryHelper.GetRegSubkeys("HKCU", "Software\\SimonTatham\\PuTTY\\Sessions");
+                }
                 RegistryKey selfKey = Registry.CurrentUser.OpenSubKey(@"Software\\SimonTatham\\PuTTY\\Sessions"); // extract own Sessions registry keys           
 
                 if (selfKey != null)
@@ -198,6 +206,10 @@ namespace winPEAS.KnownFileCreds
                     if (SID.StartsWith("S-1-5") && !SID.EndsWith("_Classes"))
                     {
                         Dictionary<string, object> hostKeys = RegistryHelper.GetRegValues("HKU", string.Format("{0}\\Software\\SimonTatham\\PuTTY\\SshHostKeys\\", SID));
+                        if ((hostKeys == null) || (hostKeys.Count == 0))
+                        {
+                            hostKeys = RegistryHelper.GetRegValues("HKU", string.Format("{0}\\Software\\SimonTatham\\PuTTY\\SshHostKeys", SID));
+                        }
                         if ((hostKeys != null) && (hostKeys.Count != 0))
                         {
                             Dictionary<string, string> putty_ssh = new Dictionary<string, string>
@@ -216,6 +228,10 @@ namespace winPEAS.KnownFileCreds
             else
             {
                 Dictionary<string, object> hostKeys = RegistryHelper.GetRegValues("HKCU", "Software\\SimonTatham\\PuTTY\\SshHostKeys\\");
+                if ((hostKeys == null) || (hostKeys.Count == 0))
+                {
+                    hostKeys = RegistryHelper.GetRegValues("HKCU", "Software\\SimonTatham\\PuTTY\\SshHostKeys");
+                }
                 if ((hostKeys != null) && (hostKeys.Count != 0))
                 {
                     Dictionary<string, string> putty_ssh = new Dictionary<string, string>();

winPEAS/winPEASps1/winPEAS.ps1

@@ -821,6 +821,34 @@ $Hotfix = Get-HotFix | Sort-Object -Descending -Property InstalledOn -ErrorActio
 $Hotfix | Format-Table -AutoSize
 
 
+# PrintNightmare PointAndPrint policy checks
+Write-Host ""
+if ($TimeStamp) { TimeElapsed }
+Write-Host -ForegroundColor Blue "=========|| PRINTNIGHTMARE POINTANDPRINT POLICY"
+$pnKey = "HKLM:\Software\Policies\Microsoft\Windows NT\Printers\PointAndPrint"
+if (Test-Path $pnKey) {
+  $pn = Get-ItemProperty -Path $pnKey -ErrorAction SilentlyContinue
+  $restrict = $pn.RestrictDriverInstallationToAdministrators
+  $noWarn = $pn.NoWarningNoElevationOnInstall
+  $updatePrompt = $pn.UpdatePromptSettings
+
+  Write-Host "RestrictDriverInstallationToAdministrators: $restrict"
+  Write-Host "NoWarningNoElevationOnInstall: $noWarn"
+  Write-Host "UpdatePromptSettings: $updatePrompt"
+
+  $hasAllValues = ($null -ne $restrict) -and ($null -ne $noWarn) -and ($null -ne $updatePrompt)
+  if (-not $hasAllValues) {
+    Write-Host "PointAndPrint policy values are missing or not configured" -ForegroundColor Gray
+  } elseif (($restrict -eq 0) -and ($noWarn -eq 1) -and ($updatePrompt -eq 2)) {
+    Write-Host "Potentially vulnerable to PrintNightmare misconfiguration" -ForegroundColor Red
+  } else {
+    Write-Host "PointAndPrint policy is not in the known risky configuration" -ForegroundColor Green
+  }
+} else {
+  Write-Host "PointAndPrint policy key not found" -ForegroundColor Gray
+}
+
+
 #Show all unique updates installed
 Write-Host ""
 if ($TimeStamp) { TimeElapsed }