Add linpeas privilege escalation checks from: HTB: Zero

docs: fix typo (conten -> content)

.github/workflows/PR-tests.yml

@@ -0,0 +1,201 @@
+name: PR-tests
+
+on:
+  pull_request:
+    branches:
+      - master
+      - main
+    paths-ignore:
+      - '.github/**'
+
+jobs:
+  Build_and_test_winpeas_pr:
+    runs-on: windows-latest
+    
+    # environment variables
+    env:
+      Solution_Path: 'winPEAS\winPEASexe\winPEAS.sln'
+      Configuration: 'Release'
+
+    steps:
+      # checkout
+      - name: Checkout
+        uses: actions/checkout@master
+        with:
+          ref: ${{ github.head_ref }}
+      
+      - name: Download regexes
+        run: |
+          powershell.exe -ExecutionPolicy Bypass -File build_lists/download_regexes.ps1
+            
+      # Add MSBuild to the PATH
+      - name: Setup MSBuild.exe
+        uses: microsoft/setup-msbuild@v1.0.2
+       
+      # Setup NuGet
+      - name: Setup NuGet.exe
+        uses: nuget/setup-nuget@v1  
+        
+      # Restore the packages for testing
+      - name: Restore the application       
+        run: nuget restore $env:Solution_Path
+        
+      # build
+      - name: run MSBuild
+        run: msbuild $env:Solution_Path
+        
+      # Build all versions
+      - name: Build all versions
+        run: |
+            echo "build x64"
+            msbuild -m $env:Solution_Path /t:Rebuild /p:Configuration=$env:Configuration /p:Platform="x64"
+            
+            echo "build x86"
+            msbuild -m $env:Solution_Path /t:Rebuild /p:Configuration=$env:Configuration /p:Platform="x86"
+            
+            echo "build Any CPU"
+            msbuild -m $env:Solution_Path /t:Rebuild /p:Configuration=$env:Configuration /p:Platform="Any CPU"
+      
+      - name: Execute winPEAS -h
+        shell: pwsh
+        run: |
+          $Configuration = "Release"
+          $exePath = "winPEAS/winPEASexe/winPEAS/bin/$Configuration/winPEAS.exe"
+          if (Test-Path $exePath) {
+            & $exePath -h
+          } else {
+            Write-Error "winPEAS.exe not found at $exePath"
+          }
+
+      - name: Execute winPEAS cloudinfo
+        shell: pwsh
+        run: |
+          $Configuration = "Release"
+          $exePath = "winPEAS/winPEASexe/winPEAS/bin/$Configuration/winPEAS.exe"
+          if (Test-Path $exePath) {
+            & $exePath cloudinfo
+          } else {
+            Write-Error "winPEAS.exe not found at $exePath"
+          }
+
+      - name: Execute winPEAS systeminfo
+        shell: pwsh
+        run: |
+          $Configuration = "Release"
+          $exePath = "winPEAS/winPEASexe/winPEAS/bin/$Configuration/winPEAS.exe"
+          if (Test-Path $exePath) {
+            & $exePath systeminfo
+          } else {
+            Write-Error "winPEAS.exe not found at $exePath"
+          }
+      
+      - name: Execute winPEAS networkinfo
+        shell: pwsh
+        run: |
+          $Configuration = "Release"
+          $exePath = "winPEAS/winPEASexe/winPEAS/bin/$Configuration/winPEAS.exe"
+          if (Test-Path $exePath) {
+            & $exePath networkinfo
+          } else {
+            Write-Error "winPEAS.exe not found at $exePath"
+          }
+
+  Build_and_test_linpeas_pr:
+    runs-on: ubuntu-latest
+
+    steps:
+      # Download repo
+      - uses: actions/checkout@v2
+        with:
+          ref: ${{ github.head_ref }}
+      
+      # Setup go
+      - uses: actions/setup-go@v2
+        with:
+          go-version: 1.17.0-rc1
+          stable: false
+      - run: go version
+      
+      # Build linpeas
+      - name: Build linpeas
+        run: |
+          python3 -m pip install PyYAML
+          cd linPEAS
+          python3 -m builder.linpeas_builder --all --output linpeas_fat.sh
+          python3 -m builder.linpeas_builder --all-no-fat --output linpeas.sh
+          python3 -m builder.linpeas_builder --small --output linpeas_small.sh
+      
+      # Run linpeas help as quick test
+      - name: Run linpeas help
+        run: linPEAS/linpeas_fat.sh -h && linPEAS/linpeas.sh -h && linPEAS/linpeas_small.sh -h
+      
+      # Run linpeas as a test
+      - name: Run linpeas system_information
+        run: linPEAS/linpeas_fat.sh -o system_information -a
+      
+      - name: Run linpeas container
+        run: linPEAS/linpeas_fat.sh -o container -a
+      
+      - name: Run linpeas cloud
+        run: linPEAS/linpeas_fat.sh -o cloud -a
+      
+      - name: Run linpeas procs_crons_timers_srvcs_sockets
+        run: linPEAS/linpeas_fat.sh -o procs_crons_timers_srvcs_sockets -a
+      
+      - name: Run linpeas network_information
+        run: linPEAS/linpeas_fat.sh -o network_information -t -a
+      
+      - name: Run linpeas users_information
+        run: linPEAS/linpeas_fat.sh -o users_information -a
+      
+      - name: Run linpeas software_information
+        run: linPEAS/linpeas_fat.sh -o software_information -a
+      
+      - name: Run linpeas interesting_perms_files
+        run: linPEAS/linpeas_fat.sh -o interesting_perms_files -a
+      
+      - name: Run linpeas interesting_files
+        run: linPEAS/linpeas_fat.sh -o interesting_files -a
+
+  Build_and_test_macpeas_pr:
+    runs-on: macos-latest
+
+    steps:
+      # Download repo
+      - uses: actions/checkout@v2
+        with:
+          ref: ${{ github.head_ref }}
+      
+      # Build linpeas (macpeas)
+      - name: Build macpeas
+        run: |
+          python3 -m pip install PyYAML --break-system-packages
+          python3 -m pip install requests --break-system-packages
+          cd linPEAS
+          python3 -m builder.linpeas_builder --all --output linpeas_fat.sh
+      
+      # Run linpeas help as quick test
+      - name: Run macpeas help
+        run: linPEAS/linpeas_fat.sh -h
+      
+      # Run macpeas parts to test it
+      - name: Run macpeas system_information
+        run: linPEAS/linpeas_fat.sh -o system_information -a
+      
+      - name: Run macpeas container
+        run: linPEAS/linpeas_fat.sh -o container -a
+      
+      - name: Run macpeas cloud
+        run: linPEAS/linpeas_fat.sh -o cloud -a
+      
+      - name: Run macpeas procs_crons_timers_srvcs_sockets
+        run: linPEAS/linpeas_fat.sh -o procs_crons_timers_srvcs_sockets -a
+      
+      - name: Run macpeas network_information
+        run: linPEAS/linpeas_fat.sh -o network_information -t -a
+      
+      - name: Run macpeas users_information
+        run: linPEAS/linpeas_fat.sh -o users_information -a
+      
+      - name: Run macpeas software_information
+        run: linPEAS/linpeas_fat.sh -o software_information -a

linPEAS/README.md

@@ -170,7 +170,7 @@ LinPEAS uses colors to indicate where does each section begin. But **it also use
 
 - The ![](https://placehold.it/15/b32400/000000?text=+) **Red** color is used for identifing suspicious configurations that could lead to privilege escalation.
 
-- The ![](https://placehold.it/15/66ff33/000000?text=+) **Green** color is used for known good configurations (based on the name not on the conten!)
+- The ![](https://placehold.it/15/66ff33/000000?text=+) **Green** color is used for known good configurations (based on the name not on the content!)
 
 - The ![](https://placehold.it/15/0066ff/000000?text=+) **Blue** color is used for: Users without shell & Mounted devices
 

linPEAS/builder/linpeas_builder.py

@@ -33,7 +33,7 @@ if __name__ == "__main__":
     parser.add_argument('--small', action='store_true', help='Build small version of linpeas.')
     parser.add_argument('--include', type=str, help='Build linpeas only with the modules indicated you can indicate section names or module IDs).')
     parser.add_argument('--exclude', type=str, help='Exclude the given modules (you can indicate section names or module IDs).')
-    parser.add_argument('--output', required=True, type=str, help='Parth to write the final linpeas file to.')
+    parser.add_argument('--output', required=True, type=str, help='Path to write the final linpeas file to.')
     args = parser.parse_args()
 
     all_modules = args.all

linPEAS/builder/linpeas_parts/4_procs_crons_timers_srvcs_sockets/15_Argv_spoofing_apachectl_t.sh

@@ -0,0 +1,74 @@
+# Title: Processes & Cron & Services & Timers - Argv spoofing + apachectl -t risks
+# ID: PR_Argv_spoofing_apachectl_t
+# Author: HT Bot
+# Last Update: 2025-08-27
+# Description: Detect potentially dangerous root scripts/units that (1) parse process argv via pgrep -f/ps and then execute a constructed command variable (argv spoofing primitive), and/or (2) invoke apache2ctl/apachectl -t which can execute piped loggers from attacker-controlled configs.
+# License: GNU GPL
+# Version: 1.0
+# Functions Used: print_2title, print_3title, print_info
+# Global Variables: $SEARCH_IN_FOLDER
+# Initial Functions:
+# Generated Global Variables: $scan_paths, $p, $regex_procgrab, $regex_var_exec, $regex_apache_test, $f, $hit, $svc
+# Fat linpeas: 0
+# Small linpeas: 1
+
+if ! [ "$SEARCH_IN_FOLDER" ]; then
+  print_2title "Potential argv-spoofing privescs and apachectl -t abuse"
+  print_info "Abusing roots crons/services that build commands from 'pgrep -f' or 'ps' output can allow argv spoofing. Running apache2ctl -t on attacker-controlled configs may execute piped loggers. See https://book.hacktricks.wiki/en/linux-hardening/privilege-escalation/index.html#scheduledcron-jobs and https://gtfobins.github.io/gtfobins/apache2ctl/."
+
+  # Candidate paths to scan (keep fast; avoid whole FS)
+  scan_paths="/usr/local/bin /usr/local/sbin /root/bin /etc/cron.d /etc/cron.daily /etc/cron.hourly /etc/cron.weekly /etc/cron.monthly /etc/cron /etc/anacrontab"
+
+  # Regexes
+  regex_procgrab='pgrep[[:space:]]+-[^ ]*f|pgrep[[:space:]]+-lfa|ps[[:space:]].*(-eo[[:space:]]+args|auxw|auxww)'
+  regex_var_exec='\$[A-Za-z_][A-Za-z0-9_]*([[:space:]]|$)'  # naive exec of unquoted shell variable
+  regex_apache_test='(apache2ctl|apachectl)[[:space:]].*-t(\>|[[:space:]]|$)'
+
+  print_3title "Scanning cron/root script locations for argv parsing + var execution"
+  for p in $scan_paths; do
+    [ -e "$p" ] || continue
+    # Limit to reasonable file sizes (<200KB) and regular files
+    find "$p" -type f -size -200k 2>/dev/null | while IFS= read -r f; do
+      # Fast prefilter: only text-like files
+      hit=$(head -c 2048 "$f" 2>/dev/null | tr -d '\0' | grep -E "$regex_procgrab|$regex_apache_test" -n 2>/dev/null)
+      [ -n "$hit" ] || continue
+
+      # If file references pgrep/ps argv scanning and executes a var, flag
+      if grep -E "$regex_procgrab" -n "$f" 2>/dev/null | head -n 1 >/dev/null; then
+        if grep -E "(^|[^A-Za-z0-9_])\$[A-Za-z_][A-Za-z0-9_]*[[:space:]]*(2>|1>|>|>>|$)" -n "$f" 2>/dev/null | grep -v '\$\(' | head -n 1 >/dev/null; then
+          echo "[!] Potential argv-spoof privesc in: $f"
+          # Show a small snippet around interesting lines
+          grep -nE "$regex_procgrab|while[[:space:]]+read|cmd=" "$f" 2>/dev/null | head -n 6 | sed 's/^/  └─ /'
+        fi
+      fi
+
+      # If file invokes apachectl -t, flag and try to show -f/-d usage
+      if grep -E "$regex_apache_test" -n "$f" 2>/dev/null | head -n 1 >/dev/null; then
+        echo "[!] apachectl/apache2ctl -t usage in: $f"
+        grep -nE "$regex_apache_test|-f[[:space:]]+| -d[[:space:]]+|ErrorLog[[:space:]]+\"\|" "$f" 2>/dev/null | head -n 6 | sed 's/^/  └─ /'
+        # Quick hint about writable temp dirs
+        for d in /dev/shm /tmp /var/tmp; do
+          [ -w "$d" ] && echo "    Note: $d is writable; attacker could drop malicious Apache config and abuse piped logs during -t"
+        done
+      fi
+    done
+  done
+
+  # Also scan systemd unit files for apachectl -t
+  print_3title "Scanning systemd unit files for apachectl -t"
+  for svc in /etc/systemd/system/*.service /lib/systemd/system/*.service; do
+    [ -f "$svc" ] || continue
+    if grep -E "Exec(Start|StartPre|StartPost).* (apache2ctl|apachectl).* -t(\>|[[:space:]]|$)" -n "$svc" 2>/dev/null >/dev/null; then
+      echo "[!] apachectl/apache2ctl -t in unit: $svc"
+      grep -nE "^User=|Exec(Start|StartPre|StartPost).* (apache2ctl|apachectl).* -t" "$svc" 2>/dev/null | sed 's/^/  └─ /'
+    fi
+  done
+  echo ""
+else
+  print_2title "Argv spoofing + apachectl -t risks"
+  for p in /etc /usr/local/bin /usr/local/sbin; do
+    [ -e "$p" ] && echo "$p" && ls -lR "$p" 2>/dev/null | head -n 50
+  done
+  echo ""
+fi
+

linPEAS/builder/linpeas_parts/7_software_information/Mysql.sh

@@ -8,7 +8,7 @@
 # Functions Used: print_2title
 # Global Variables: $DEBUG, $knw_usrs, $nosh_usrs, $sh_usrs, $DEBUG, $USER, $STRINGS
 # Initial Functions:
-# Generated Global Variables: $mysqluser, $mysqlexec, $mysqlconnect, $mysqlconnectnopass
+# Generated Global Variables: $mysqluser, $mysqlexec, $mysqlconnect, $mysqlconnectnopass, $mysqluser, $version_output, $major_version, $version, $process_info
 # Fat linpeas: 0
 # Small linpeas: 1
 
@@ -102,4 +102,42 @@ if [ "$(command -v mysql || echo -n '')" ] || [ "$(command -v mysqladmin || echo
   else echo_no
   fi
   echo ""
+fi
+
+### This section checks if MySQL (mysqld) is running as root and if its version is 4.x or 5.x to refer a known local privilege escalation exploit! ###
+
+# Find the mysqld process
+process_info=$(ps aux | grep '[m]ysqld' | head -n1)
+
+if [ -z "$process_info" ]; then
+  echo "MySQL process not found." | sed -${E} "s,.*,${SED_GREEN},"
+else
+
+  # Extract the process user
+  mysqluser=$(echo "$process_info" | awk '{print $1}')
+
+  # Get the MySQL version string
+  version_output=$(mysqld --version 2>&1)
+
+  # Extract the version number (expects format like X.Y.Z)
+  version=$(echo "$version_output" | grep -oE '[0-9]+\.[0-9]+\.[0-9]+' | head -n1)
+
+  if [ -z "$version" ]; then
+    echo "Unable to determine MySQL version." | sed -${E} "s,.*,${SED_GREEN},"
+  else
+
+    # Extract the major version number (X from X.Y.Z)
+    major_version=$(echo "$version" | cut -d. -f1)
+
+    # Check if MySQL is running as root and if the version is either 4.x or 5.x
+    if [ "$mysqluser" = "root" ] && { [ "$major_version" -eq 4 ] || [ "$major_version" -eq 5 ]; }; then
+      echo "MySQL is running as root with version $version. This is a potential local privilege escalation vulnerability!" | sed -${E} "s,.*,${SED_RED},"
+      echo "\tRefer to: https://www.exploit-db.com/exploits/1518" | sed -${E} "s,.*,${SED_YELLOW},"
+      echo "\tRefer to: https://medium.com/r3d-buck3t/privilege-escalation-with-mysql-user-defined-functions-996ef7d5ceaf" | sed -${E} "s,.*,${SED_YELLOW},"
+    else
+      echo "MySQL is running as user '$mysqluser' with version $version." | sed -${E} "s,.*,${SED_GREEN},"
+    fi
+    ### ------------------------------------------------------------------------------------------------------------------------------------------------ ###
+  
+  fi
 fi

linPEAS/builder/src/linpeasBaseBuilder.py

@@ -292,9 +292,12 @@ class LinpeasBaseBuilder:
         all_module_paths += self.enumerate_directory(LINPEAS_PARTS["variables"])
         
         for module in LINPEAS_PARTS["modules"]:
+            exclude = False
             for ex_module in exclude_modules:
                 if ex_module in module["folder_path"] or ex_module in [module["name"], module["name_check"]]:
-                    continue
+                    exclude = True
+                    break
+            if exclude: continue
             all_module_paths += self.enumerate_directory(module["folder_path"])
         
         for module in all_module_paths:

linPEAS/builder/src/linpeasBuilder.py

@@ -402,9 +402,9 @@ class LinpeasBuilder:
 
 
     def __replace_mark(self, mark: str, find_calls: list, join_char: str):
-        """Substitude the markup with the actual code"""
-        
-        self.linpeas_sh = self.linpeas_sh.replace(mark, join_char.join(find_calls)) #New line char is't needed
+        """Substitute the markup with the actual code"""
+
+        self.linpeas_sh = self.linpeas_sh.replace(mark, join_char.join(find_calls)) #New line char isn't needed
     
     def write_linpeas(self, path):
         """Write on disk the final linpeas"""

parsers/peas2json.py

@@ -106,8 +106,6 @@ def parse_line(line: str):
 
     global FINAL_JSON, C_SECTION, C_MAIN_SECTION, C_2_SECTION, C_3_SECTION
 
-    if "Cron jobs" in line:
-        a=1
 
     if is_section(line, TITLE1_PATTERN):
         title = parse_title(line)
@@ -145,17 +143,26 @@ def parse_line(line: str):
 
 
 def parse_peass(outputpath: str, jsonpath: str = ""):
-    global OUTPUT_PATH, JSON_PATH
+    global OUTPUT_PATH, JSON_PATH, FINAL_JSON, C_SECTION, C_MAIN_SECTION, C_2_SECTION, C_3_SECTION
 
     OUTPUT_PATH = outputpath
     JSON_PATH = jsonpath
 
-    for line in open(OUTPUT_PATH, 'r', encoding="utf8").readlines():
-        line = line.strip()
-        if not line or not clean_colors(line): #Remove empty lines or lines just with colors hex
-            continue
+    # Reset globals to avoid data leaking between executions
+    FINAL_JSON = {}
+    C_SECTION = FINAL_JSON
+    C_MAIN_SECTION = FINAL_JSON
+    C_2_SECTION = FINAL_JSON
+    C_3_SECTION = FINAL_JSON
 
-        parse_line(line)
+    with open(OUTPUT_PATH, 'r', encoding="utf8") as f:
+        for line in f.readlines():
+            line = line.strip()
+            # Remove empty lines or lines containing only color codes
+            if not line or not clean_colors(line):
+                continue
+
+            parse_line(line)
 
     if JSON_PATH:
         with open(JSON_PATH, "w") as f:

winPEAS/winPEASexe/winPEAS/Checks/ProcessInfo.cs

@@ -102,17 +102,15 @@ namespace winPEAS.Checks
                 {
                     vulnHandlers = ProcessesInfo.GetVulnHandlers(progress);
                 }
+                Dictionary<string, string> colors = new Dictionary<string, string>();
+                colors[Checks.CurrentUserName] = Beaprint.ansi_color_bad;
+                colors[HandlesHelper.elevatedProcess] = Beaprint.ansi_color_bad;
 
                 foreach (Dictionary<string, string> handler in vulnHandlers)
                 {
-                    Dictionary<string, string> colors = new Dictionary<string, string>()
-                    {
-                        { Checks.CurrentUserName, Beaprint.ansi_color_bad },
-                        { handler["Reason"], Beaprint.ansi_color_bad },
-                    };
-
-                    Beaprint.DictPrint(vulnHandlers, colors, true);
+                    colors[handler["Reason"]] = Beaprint.ansi_color_bad;
                 }
+                Beaprint.DictPrint(vulnHandlers, colors, true);
             }
             catch (Exception ex)
             {

winPEAS/winPEASexe/winPEAS/Helpers/Beaprint.cs

@@ -31,7 +31,7 @@ namespace winPEAS.Helpers
         public static string ansi_current_user = MAGENTA;
 
         private static string Advisory =
-            "winpeas should be used for authorized penetration testing and/or educational purposes only." +
+            "winpeas should be used for authorized penetration testing and/or educational purposes only. " +
             "Any misuse of this software will not be the responsibility of the author or of any other collaborator. " +
             "Use it at your own devices and/or with the device owner's permission.";
 

winPEAS/winPEASexe/winPEAS/Helpers/HandlesHelper.cs

@@ -12,6 +12,7 @@ namespace winPEAS.Helpers
         private const int CNST_SYSTEM_EXTENDED_HANDLE_INFORMATION = 64;
         public const uint STATUS_INFO_LENGTH_MISMATCH = 0xC0000004;
         public const int DUPLICATE_SAME_ACCESS = 0x2;
+        public const string elevatedProcess = "Access denied, process is probably elevated";
 
         [StructLayout(LayoutKind.Sequential, CharSet = CharSet.Unicode)]
         public struct FILE_NAME_INFO
@@ -171,7 +172,7 @@ namespace winPEAS.Helpers
                 // Hex perms from https://docs.microsoft.com/en-us/windows/win32/procthread/process-security-and-access-rights and https://github.com/buffer/maltracer/blob/master/defines.py
 
                 //PROCESS_ALL_ACCESS
-                if ((h.GrantedAccess & 0x001F0FFF) == h.GrantedAccess)
+                if ((h.GrantedAccess & 0x001F0FFF) == h.GrantedAccess || (h.GrantedAccess & 0x1FFFFF) == h.GrantedAccess)
                 {
                     vulnHandler.isVuln = true;
                     vulnHandler.reason = "PROCESS_ALL_ACCESS";
@@ -454,6 +455,8 @@ namespace winPEAS.Helpers
             }
             catch
             {
+                data["name"] = elevatedProcess;
+                data["sid"] = elevatedProcess;
                 return data;
             }
             finally
@@ -469,12 +472,32 @@ namespace winPEAS.Helpers
         public static PT_RELEVANT_INFO getProcInfoById(int pid)
         {
             PT_RELEVANT_INFO pri = new PT_RELEVANT_INFO();
+            Process proc;
 
-            Process proc = Process.GetProcessById(pid);
+            try
+            {
+                proc = Process.GetProcessById(pid);
+            }
+            catch
+            {
+                pri.pid = pid;
+                pri.name = "Error, process may not exist";
+                pri.userName = "Error, process may not exist";
+                pri.userSid = "Error, process may not exist";
+                pri.imagePath = "Error, process may not exist";
+                return pri;
+            }
             Dictionary<string, string> user = GetProcU(proc);
-
             StringBuilder fileName = new StringBuilder(2000);
-            Native.Psapi.GetProcessImageFileName(proc.Handle, fileName, 2000);
+
+            try
+            {
+                Native.Psapi.GetProcessImageFileName(proc.Handle, fileName, 2000);
+            }
+            catch
+            {
+                fileName = new StringBuilder(elevatedProcess);
+            }
 
             pri.pid = pid;
             pri.name = proc.ProcessName;