Add linpeas privilege escalation checks from: HTB Build: Rsync’d Jenkins backup → Jenkinsfile RCE → DNS-assisted rlogin to hos

Update Beaprint.cs

.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/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_RCommands_trust.sh

@@ -0,0 +1,103 @@
+# Title: Processes & Cron & Services & Timers - r-commands trust (rsh/rlogin/rexec)
+# ID: PR_RCommands_trust
+# Author: HT Bot
+# Last Update: 25-08-2025
+# Description: Detect hostname-based trust for Berkeley r-commands and active listeners; warn about DNS-assisted abuse.
+# License: GNU GPL
+# Version: 1.0
+# Functions Used: print_2title, print_3title, print_list, print_info, echo_no
+# Global Variables: $SEARCH_IN_FOLDER, $E, $SED_RED, $SED_RED_YELLOW
+# Initial Functions:
+# Generated Global Variables: $rhosts_found, $rsvc_listeners, $homes, $h, $f, $found
+# Fat linpeas: 0
+# Small linpeas: 1
+
+if ! [ "$SEARCH_IN_FOLDER" ]; then
+  print_2title "Berkeley r-commands trust (rsh/rlogin/rexec)"
+  print_info "https://book.hacktricks.wiki/en/linux-hardening/privilege-escalation/index.html#r-commands-rlogin-rsh-rexec"
+
+  rhosts_found=""
+
+  # 1) Trust files: /etc/hosts.equiv and per-user ~/.rhosts
+  print_list "Trust files (.rhosts / hosts.equiv)? ... "
+  (
+    # /etc/hosts.equiv
+    if [ -r "/etc/hosts.equiv" ]; then
+      printf "\n/etc/hosts.equiv (perm: %s)\n" "$(stat -c %a /etc/hosts.equiv 2>/dev/null || stat -f %p /etc/hosts.equiv 2>/dev/null)"
+      # highlight risky entries: '+' or hosts granting any user
+      sed -n "1,200p" /etc/hosts.equiv 2>/dev/null | sed -${E} "s,^\s*\+.*$,${SED_RED},; s,\s+\s*$,${SED_RED},"
+      rhosts_found=1
+    fi
+
+    # Per-user .rhosts from passwd
+    # Use getent if available, else parse /etc/passwd
+    homes=$( (getent passwd 2>/dev/null || cat /etc/passwd 2>/dev/null) | awk -F: '{print $6}' | sort -u )
+    for h in $homes; do
+      f="$h/.rhosts"
+      if [ -r "$f" ]; then
+        printf "\n%s (perm: %s)\n" "$f" "$(stat -c %a "$f" 2>/dev/null || stat -f %p "$f" 2>/dev/null)"
+        sed -n "1,200p" "$f" 2>/dev/null | sed -${E} "s,^\s*\+.*$,${SED_RED},; s,\s+\s*$,${SED_RED},"
+        rhosts_found=1
+      fi
+    done
+
+    # Common root path fallback
+    if [ -r "/root/.rhosts" ] && ! echo "$homes" | grep -q "^/root$"; then
+      printf "\n/root/.rhosts (perm: %s)\n" "$(stat -c %a /root/.rhosts 2>/dev/null || stat -f %p /root/.rhosts 2>/dev/null)"
+      sed -n "1,200p" /root/.rhosts 2>/dev/null | sed -${E} "s,^\s*\+.*$,${SED_RED},; s,\s+\s*$,${SED_RED},"
+      rhosts_found=1
+    fi
+
+    [ "$rhosts_found" ] || echo_no
+  ) 2>/dev/null
+
+  # 2) r-commands listeners (512 exec/rexec, 513 rlogin, 514 rsh)
+  print_list "Are r-commands listening? ............ "
+  rsvc_listeners=""
+  if command -v ss >/dev/null 2>&1; then
+    ss -tlpn 2>/dev/null | awk 'NR==1 || $4 ~ /:(512|513|514)$/ {print}' | sed -n '2,200p' | sed -${E} "s,.*,${SED_RED_YELLOW}," && rsvc_listeners=1
+  elif command -v netstat >/dev/null 2>&1; then
+    netstat -tlpn 2>/dev/null | awk 'NR==1 || $4 ~ /:(512|513|514)$/ {print}' | sed -n '2,200p' | sed -${E} "s,.*,${SED_RED_YELLOW}," && rsvc_listeners=1
+  fi
+  [ "$rsvc_listeners" ] || echo_no
+
+  # 3) inetd/xinetd/systemd configuration hints
+  print_list "rsh/rlogin/rexec enabled in inetd/xinetd? "
+  (
+    found=""
+    [ -r /etc/inetd.conf ] && grep -E "(^|\s)(rsh|rlogin|rexec)(\s|$)" /etc/inetd.conf 2>/dev/null && found=1
+    if ls /etc/xinetd.d/* >/dev/null 2>&1; then
+      grep -E "(rsh|rlogin|rexec)" /etc/xinetd.d/* 2>/dev/null && found=1
+    fi
+    [ "$found" ] || echo_no
+  )
+
+  print_list "rsh/rlogin/rexec sockets in systemd? .. "
+  (
+    found=""
+    if command -v systemctl >/dev/null 2>&1; then
+      systemctl list-unit-files --type=socket --no-pager 2>/dev/null | grep -E "(rlogin|rsh|rexec)" && found=1
+      systemctl list-sockets --no-pager 2>/dev/null | grep -E "(rlogin|rsh|rexec)" && found=1
+    fi
+    [ "$found" ] || echo_no
+  )
+
+  # 4) PAM rhosts trust
+  print_list "PAM rhosts trust enabled? ............ "
+  (
+    found=""
+    for p in /etc/pam.d/rlogin /etc/pam.d/rsh /etc/pam.d/rexec; do
+      [ -r "$p" ] && grep -E "pam_rhosts|pam_rhosts_auth" "$p" 2>/dev/null && found=1
+    done
+    [ "$found" ] || echo_no
+  )
+
+  # 5) Container-to-host hint
+  if [ -f "/.dockerenv" ]; then
+    print_info "Running inside a container. If host runs r-commands and root/.rhosts trusts hostnames, aligning A+PTR DNS may allow passwordless rlogin/rsh to the host."
+  fi
+
+  # 6) Actionable guidance
+  print_3title "Why risky and how to abuse"
+  echo "- If a trusted entry is a hostname (not an IP) and r-services are listening, an attacker controlling DNS can set matching forward (A) and reverse (PTR) records so their IP resolves to the trusted name and reverse to the same name, passing hostname checks for passwordless access (even root if in /root/.rhosts or hosts.equiv)." | sed -${E} "s,passwordless access,${SED_RED_YELLOW},"
+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;