Merge pull request #483 from securitytime/patch-1

Update Beaprint.cs

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/1_system_information/10_Environment.sh

@@ -26,7 +26,7 @@
 # License: GNU GPL
 # Version: 1.0
 # Functions Used: echo_not_found, print_2title, print_info
-# Global Variables:
+# Global Variables: $NoEnvVars, $EnvVarsRed
 # Initial Functions:
 # Generated Global Variables:
 # Fat linpeas: 0
@@ -35,5 +35,5 @@
 
 print_2title "Environment"
 print_info "Any private information inside environment variables?"
-(env || printenv || set) 2>/dev/null | grep -v "RELEVANT*|FIND*|^VERSION=|dbuslistG|mygroups|ldsoconfdG|pwd_inside_history|kernelDCW_Ubuntu_Precise|kernelDCW_Ubuntu_Trusty|kernelDCW_Ubuntu_Xenial|kernelDCW_Rhel|^sudovB=|^rootcommon=|^mounted=|^mountG=|^notmounted=|^mountpermsB=|^mountpermsG=|^kernelB=|^C=|^RED=|^GREEN=|^Y=|^B=|^NC=|TIMEOUT=|groupsB=|groupsVB=|knw_grps=|sidG|sidB=|sidVB=|sidVB2=|sudoB=|sudoG=|sudoVB=|timersG=|capsB=|notExtensions=|Wfolders=|writeB=|writeVB=|_usrs=|compiler=|LS_COLORS=|pathshG=|notBackup=|processesDump|processesB|commonrootdirs|USEFUL_SOFTWARE|PSTORAGE_" | sed -${E} "s,[pP][aA][sS][sS][wW]|[aA][pP][iI][kK][eE][yY]|[aA][pP][iI][_][kK][eE][yY]|KRB5CCNAME,${SED_RED},g" || echo_not_found "env || set"
+(env || printenv || set) 2>/dev/null | grep -Eiv "$NoEnvVars" | sed -${E} "s,$EnvVarsRed,${SED_RED},g" || echo_not_found "env || set"
 echo ""

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
 
@@ -103,3 +103,41 @@ if [ "$(command -v mysql || echo -n '')" ] || [ "$(command -v mysqladmin || echo
   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/linpeas_parts/9_interesting_files/29_Interesting_environment_variables.sh

@@ -0,0 +1,22 @@
+# Title: Interesting Files - Interesting Environment Variables
+# ID: IF_Interesting_environment_variables
+# Author: Jack Vaughn
+# Last Update: 25-05-2025
+# Description: Searching possible sensitive environment variables inside of /proc/*/environ
+# License: GNU GPL
+# Version: 1.0
+# Functions Used: print_2title
+# Global Variables: $MACPEAS, $NoEnvVars, $EnvVarsRed
+# Initial Functions:
+# Generated Global Variables:
+# Fat linpeas: 0
+# Small linpeas: 1
+
+if [ -z "$MACPEAS" ]; then
+  print_2title "Checking all env variables in /proc/*/environ removing duplicates and filtering out useless env vars"
+  cat /proc/[0-9]*/environ 2>/dev/null | \
+  tr '\0' '\n' | \
+  grep -Eiv "$NoEnvVars" | \
+  sort -u | \
+  sed -${E} "s,$EnvVarsRed,${SED_RED},g"
+fi

linPEAS/builder/linpeas_parts/variables/EnvVarsRed.sh

@@ -0,0 +1,18 @@
+# Title: Variables - EnvVarsRed
+# ID: EnvVarsRed
+# Author: Carlos Polop
+# Last Update: 26-05-2025
+# Description: Useless env vars
+# License: GNU GPL
+# Version: 1.0
+# Functions Used:
+# Global Variables:
+# Initial Functions:
+# Generated Global Variables: $EnvVarsRed
+# Fat linpeas: 0
+# Small linpeas: 1
+
+
+EnvVarsRed="[pP][aA][sS][sS][wW]|[aA][pP][iI][kK][eE][yY]|[aA][pP][iI][_][kK][eE][yY]|KRB5CCNAME|[aA][pP][iI][_][kK][eE][yY]|[aA][wW][sS]|[aA][zZ][uU][rR][eE]|[gG][cC][pP]|[aA][pP][iI]|[sS][eE][cC][rR][eE][tT]|[sS][qQ][lL]|[dD][aA][tT][aA][bB][aA][sS][eE]|[tT][oO][kK][eE][nN]"
+
+

linPEAS/builder/linpeas_parts/variables/NoEnvVars.sh

@@ -0,0 +1,16 @@
+# Title: Variables - NoEnvVars
+# ID: NoEnvVars
+# Author: Carlos Polop
+# Last Update: 26-05-2025
+# Description: Useless env vars
+# License: GNU GPL
+# Version: 1.0
+# Functions Used:
+# Global Variables:
+# Initial Functions:
+# Generated Global Variables: $NoEnvVars
+# Fat linpeas: 0
+# Small linpeas: 1
+
+
+NoEnvVars="LESS_TERMCAP|JOURNAL_STREAM|XDG_SESSION|DBUS_SESSION|systemd\/sessions|systemd_exec|MEMORY_PRESSURE_WATCH|RELEVANT*|FIND*|^VERSION=|dbuslistG|mygroups|ldsoconfdG|pwd_inside_history|kernelDCW_Ubuntu_Precise|kernelDCW_Ubuntu_Trusty|kernelDCW_Ubuntu_Xenial|kernelDCW_Rhel|^sudovB=|^rootcommon=|^mounted=|^mountG=|^notmounted=|^mountpermsB=|^mountpermsG=|^kernelB=|^C=|^RED=|^GREEN=|^Y=|^B=|^NC=|TIMEOUT=|groupsB=|groupsVB=|knw_grps=|sidG|sidB=|sidVB=|sidVB2=|sudoB=|sudoG=|sudoVB=|timersG=|capsB=|notExtensions=|Wfolders=|writeB=|writeVB=|_usrs=|compiler=|LS_COLORS=|pathshG=|notBackup=|processesDump|processesB|commonrootdirs|USEFUL_SOFTWARE|PSTORAGE_|^PATH=|^INVOCATION_ID=|^WATCHDOG_PID=|^LISTEN_PID="

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

@@ -97,7 +97,7 @@ class LinpeasBuilder:
         for orig_url in urls:
             tar_gz_bin_name = ""
             if ",,," in orig_url:
-                tar_gz_bin_name = url.split(",,,")[1]
+                tar_gz_bin_name = orig_url.split(",,,")[1]
                 url = orig_url.split(",,,")[0]
             else:
                 url = orig_url
@@ -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"""
+        """Substitute 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
+        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)
@@ -145,14 +143,23 @@ 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():
+    # 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
+
+    with open(OUTPUT_PATH, 'r', encoding="utf8") as f:
+        for line in f.readlines():
             line = line.strip()
-        if not line or not clean_colors(line): #Remove empty lines or lines just with colors hex
+            # Remove empty lines or lines containing only color codes
+            if not line or not clean_colors(line):
                 continue
 
             parse_line(line)

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>()
+                    colors[handler["Reason"]] = Beaprint.ansi_color_bad;
-                    {
-                        { Checks.CurrentUserName, Beaprint.ansi_color_bad },
-                        { handler["Reason"], Beaprint.ansi_color_bad },
-                    };
-
-                    Beaprint.DictPrint(vulnHandlers, colors, true);
                 }
+                Beaprint.DictPrint(vulnHandlers, colors, true);
             }
             catch (Exception ex)
             {

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);
+
+            try
+            {
                 Native.Psapi.GetProcessImageFileName(proc.Handle, fileName, 2000);
+            }
+            catch
+            {
+                fileName = new StringBuilder(elevatedProcess);
+            }
 
             pri.pid = pid;
             pri.name = proc.ProcessName;

winPEAS/winPEASexe/winPEAS/Info/ProcessInfo/ProcessesInfo.cs

@@ -195,11 +195,11 @@ namespace winPEAS.Info.ProcessInfo
                                 continue;
 
                             List<string> permsFile = PermissionsHelper.GetPermissionsFile(sFilePath, Checks.Checks.CurrentUserSiDs, PermissionType.WRITEABLE_OR_EQUIVALENT);
+                            IdentityReference sid = null;
                             try
                             {
                                 System.Security.AccessControl.FileSecurity fs = System.IO.File.GetAccessControl(sFilePath);
-                                IdentityReference sid = fs.GetOwner(typeof(SecurityIdentifier));
+                                sid = fs.GetOwner(typeof(SecurityIdentifier));
-                                string ownerName = sid.Translate(typeof(NTAccount)).ToString();
 
                                 // If current user already have permissions over that file or the proc belongs to the owner of the file,
                                 // handler not interesting to elevate privs
@@ -207,6 +207,8 @@ namespace winPEAS.Info.ProcessInfo
                                     continue;
 
                                 to_add["File Path"] = sFilePath;
+
+                                string ownerName = sid.Translate(typeof(NTAccount)).ToString();
                                 to_add["File Owner"] = ownerName;
                             }
                             catch (System.IO.FileNotFoundException)
@@ -218,7 +220,10 @@ namespace winPEAS.Info.ProcessInfo
                             {
                                 continue;
                             }
-
+                            catch (System.Security.Principal.IdentityNotMappedException)
+                            {
+                                to_add["File Owner"] = sid.ToString();
+                            }
                         }
 
                         else if (typeName == "key")