diff --git a/py3-version.py b/py3-version.py new file mode 100644 index 0000000..d157678 --- /dev/null +++ b/py3-version.py @@ -0,0 +1,649 @@ +#!/usr/bin/env python3 + +""" +############################################################################################################### +## [Title]: linuxprivchecker.py -- a Linux Privilege Escalation Check Script +## [Original Author]: Mike Czumak (T_v3rn1x) -- @SecuritySift +## [Maintainer]: Michael Contino -- @Sleventyeleven +##------------------------------------------------------------------------------------------------------------- +## [Details]: +## This script is intended to be executed locally on a Linux box to enumerate basic system info and +## search for common privilege escalation vectors such as world writable files, misconfigurations, clear-text +## passwords and applicable exploits. +##------------------------------------------------------------------------------------------------------------- +## [Modification, Distribution, and Attribution]: +## You are free to modify and/or distribute this script as you wish. I only ask that you maintain original +## author attribution and not attempt to sell it or incorporate it into any commercial offering (as if it's +## worth anything anyway :) +############################################################################################################### +TODO: +Add search for writable and/or missing library files +Add detection and enumeratation for systemd +Add search for accessiable ssh sockets +Add search for ssh keys +Add search for know access tokens +Expand Sudo support to include rules in sudoers.d +Add more high profile exploit checks (ie shellshock) +""" + +# conditional import for older versions of python not compatible with subprocess +try: + import subprocess as sub + compatmode = 0 # newer version of python, no need for compatibility mode +except ImportError: + import os # older version of python, need to use os instead + compatmode = 1 + + +def execute_cmd(cmddict): + """ + Execute Command (execute_cmd) + loop through dictionary, execute the commands, store the results, return updated dict + + :param cmddict: Dictionary of commands to execute and results + :return: The command Dictionary with the commands results included + """ + + for item in cmddict: + cmd = cmddict[item]["cmd"] + if compatmode == 0: # newer version of python, use preferred subprocess + out, error = sub.Popen([cmd], stdout=sub.PIPE, stderr=sub.PIPE, shell=True, text=True).communicate() + results = out.split('\n') + else: # older version of python, use os.popen + echo_stdout = os.popen(cmd, 'r') + results = echo_stdout.read().split('\n') + + # write the results to the command Dictionary for each command run + cmddict[item]["results"] = results + + return cmddict + + +def print_results(cmddict): + """ + Print Results (printResults) + Print results for each previously executed command, no return value + + :param cmddict: Dictionary of commands to execute and results + :return: None + """ + + for item in cmddict: + msg = cmddict[item]["msg"] + results = cmddict[item]["results"] + print("[+] " + msg) + + for result in results: + if result.strip() != "": + print(" " + result.strip()) + print() + + +def enum_system_info(): + """ + Basic System Info (get_system_info) + Enumerate Basic System Information by executing simple commands than saving the results + + :return: Dictionary of system information results + """ + + print("[*] GETTING BASIC SYSTEM INFO...\n") + + sysinfo = { + "OS": {"cmd": "cat /etc/issue", "msg": "Operating System", "results": []}, + "KERNEL": {"cmd": "cat /proc/version", "msg": "Kernel", "results": []}, + "HOSTNAME": {"cmd": "hostname", "msg": "Hostname", "results": []} + } + + sysinfo = execute_cmd(sysinfo) + print_results(sysinfo) + + return sysinfo + + +def enum_network_info(): + """ + Basic Network Info (get_network_info) + Enumerate Basic Network Information by executing simple commands + + :return: Dictionary of Network information with results + """ + + print("[*] GETTING NETWORKING INFO...\n") + + netinfo = { + "netinfo": {"cmd": "/sbin/ifconfig -a", "msg": "Interfaces", "results": []}, + "ROUTE": {"cmd": "route", "msg": "Route(s)", "results": []}, + "NETSTAT": {"cmd": "netstat -antup | grep -v 'TIME_WAIT'", "msg": "Netstat", "results": []} + } + + netinfo = execute_cmd(netinfo) + print_results(netinfo) + + +def enum_filesystem_info(): + """ + Enumerate Filesystem Information (enum_filesystem_info) + Enumerate mounted and/or configured filesystems and save the results + + :return: Dictionary with drive information results + TODO: Parse parse out the filesystem results for remote file systems and credentials + """ + + print("[*] GETTING FILESYSTEM INFO...\n") + + driveinfo = { + "MOUNT": {"cmd": "mount", "msg": "Mount results", "results": []}, + "FSTAB": {"cmd": "cat /etc/fstab 2>/dev/null", "msg": "fstab entries", "results": []} + } + + driveinfo = execute_cmd(driveinfo) + print_results(driveinfo) + + return driveinfo + + +def enum_cron_jobs(): + """ + Enumerate crontab Information (enum_cron_jobs) + Enumerate system and user cron jobs and save the results + + :return: None + TODO: Should also parse at and systemd jobs for possible information as well + """ + croninfo = { + "CRON": {"cmd": "ls -la /etc/cron* 2>/dev/null", "msg": "Scheduled cron jobs", "results": []}, + "CRONW": {"cmd": "ls -aRl /etc/cron* 2>/dev/null | awk '$1 ~ /w.$/' 2>/dev/null", "msg": "Writable cron dirs", "results": []}, + "CRONU": {"cmd": "crontab -l 2>/dev/null", "msg": "Users cron jobs", "results": []} + } + + croninfo = execute_cmd(croninfo) + print_results(croninfo) + + +def enum_user_info(): + """ + Enumerate User Information (enum_user_info) + Enumerate current user information and save the results + + :return: Dictionary with the user information commands and results + """ + print("\n[*] ENUMERATING USER AND ENVIRONMENTAL INFO...\n") + + userinfo = { + "WHOAMI": {"cmd": "whoami", "msg": "Current User", "results": []}, + "ID": {"cmd": "id", "msg": "Current User ID", "results": []}, + "ALLUSERS": {"cmd": "cat /etc/passwd", "msg": "All users", "results": []}, + "SUPUSERS": {"cmd": "grep -v -E '^#' /etc/passwd | awk -F: '$3 == 0{print $1}'", "msg": "Super Users Found:", "results": []}, + "ENV": {"cmd": "env 2>/dev/null | grep -v 'LS_COLORS'", "msg": "Environment", "results": []}, + "SUDOERS": {"cmd": "cat /etc/sudoers 2>/dev/null | grep -v '#' 2>/dev/null", "msg": "Sudoers (privileged)", "results": []}, + "SCREENS": {"cmd": "screen -ls 2>/dev/null", "msg": "List out any screens running for the current user", "results": []}, + "LOGGEDIN": {"cmd": "who -a 2>/dev/null", "msg": "Logged in User Activity", "results": []} + } + + userinfo = execute_cmd(userinfo) + print_results(userinfo) + + if "root" in userinfo["ID"]["results"][0]: + print("[!] ARE YOU SURE YOU'RE NOT ROOT ALREADY?\n") + exit() + + return userinfo + + +def enum_user_history_files(): + """ + Enumerate User History Files (enum_user_history_files) + Enumerate current user History Files and save content to results + + :return: None + """ + print("\n[*] ENUMERATING USER History Files..\n") + + historyfiles = { + "RHISTORY": {"cmd": "ls -la /root/.*_history 2>/dev/null", "msg": " See if you have access too Root user history (depends on privs)", "results": []}, + "BASHHISTORY": {"cmd": "cat ~/.bash_history 2>/dev/null", "msg": " Get the contents of bash history file for current user", "results": []}, + "NANOHISTORY": {"cmd": "cat ~/.nano_history 2>/dev/null", "msg": " Try to get the contents of nano history file for current user", "results": []}, + "ATFTPHISTORY": {"cmd": "cat ~/.atftp_history 2>/dev/null", "msg": " Try to get the contents of atftp history file for current user", "results": []}, + "MYSQLHISTORY": {"cmd": "cat ~/.mysql_history 2>/dev/null", "msg": " Try to get the contents of mysql history file for current user", "results": []}, + "PHPHISTORY": {"cmd": "cat ~/.php_history 2>/dev/null", "msg": " Try to get the contents of php history file for current user", "results": []}, + "PYTHONHISTORY": {"cmd": "cat ~/.python_history 2>/dev/null", "msg": " Try to get the contents of python history file for current user", "results": []}, + "REDISHISTORY": {"cmd": "cat ~/.rediscli_history 2>/dev/null", "msg": " Try to get the contents of redis cli history file for current user", "results": []}, + "TDSQLHISTORY": {"cmd": "cat ~/.tdsql_history 2>/dev/null", "msg": " Try to get the contents of tdsql history file for current user", "results": []} + } + + historyfiles = execute_cmd(historyfiles) + print_results(historyfiles) + + +def enum_rc_files(): + """ + Enumerate User RCFiles (enum_rc_files) + Enumerate current user RC Files and save content to results + + :return: None + """ + print("\n[*] ENUMERATING USER *.rc Style Files For INFO...\n") + + rcfiles = { + "GBASHRC" : {"cmd": "cat /etc/bashrc 2>/dev/null", "msg": " Get the contents of bash rc file form global config file", "results": []}, + "BASHRC": {"cmd": "cat ~/.bashrc 2>/dev/null", "msg": "Get the contents of bash rc file for current user", "results": []}, + "SCREENRC": {"cmd": "cat ~/.screenrc 2>/dev/null", "msg": " Try to get the contents of screen rc file for current user", "results": []}, + "GSCREENRC": {"cmd": "cat /etc/screenrc 2>/dev/null", "msg": "Try to get the contents of screen rc file form global config file", "results": []}, + "VIRC": {"cmd": "cat ~/.virc 2>/dev/null", "msg": " Try to get the contents of vi rc file for current user", "results": []}, + "MYSQLRC": {"cmd": "cat ~/.mysqlrc 2>/dev/null", "msg": " Try to get the contents of mysql rc file for current user", "results": []}, + "NETRC": {"cmd": "cat ~/.netrc 2>/dev/null", "msg": " Try to get the contents of legacy net rc file for current user", "results": []} + } + + rcfiles = execute_cmd(rcfiles) + print_results(rcfiles) + + +def search_file_perms(): + """ + Search File and Folder Permissions (search_file_perms) + Search the identified file systems for insure file and folder permissions + + :return: None + """ + + print("[*] ENUMERATING FILE AND DIRECTORY PERMISSIONS/CONTENTS...\n") + + fdperms = { + "WWDIRSROOT": {"cmd": "find / \\( -wholename '/home/homedir*' -prune \\) -o \\( -type d -perm -0002 \\) -exec ls -ld '{}' ';' 2>/dev/null | grep root", "msg": "World Writeable Directories for User/Group 'Root'", "results": []}, + "WWDIRS": {"cmd": "find / \\( -wholename '/home/homedir*' -prune \\) -o \\( -type d -perm -0002 \\) -exec ls -ld '{}' ';' 2>/dev/null | grep -v root", "msg": "World Writeable Directories for Users other than Root", "results": []}, + "WWFILES": {"cmd": "find / \\( -wholename '/home/homedir/*' -prune -o -wholename '/proc/*' -prune \\) -o \\( -type f -perm -0002 \\) -exec ls -l '{}' ';' 2>/dev/null", "msg": "World Writable Files", "results": []}, + "SUID": {"cmd": "find / \\( -perm -2000 -o -perm -4000 \\) -exec ls -ld {} \\; 2>/dev/null", "msg": "SUID/SGID Files and Directories", "results": []}, + "ROOTHOME": {"cmd": "ls -ahlR /root 2>/dev/null", "msg": "Checking if root's home folder is accessible", "results": []} + } + + fdperms = execute_cmd(fdperms) + print_results(fdperms) + + +def search_file_passwords(): + """ + Search File for passwords (search_file_passwords) + Search the identified file systems for files with potential credentials + + :return: None + :TODO: Add searches for common cred files like ssh keys and access tokens + """ + + pwdfiles = { + "LOGPWDS": {"cmd": "find /var/log -name '*.log' 2>/dev/null | xargs -l10 egrep 'pwd|password' 2>/dev/null", "msg": "Logs containing keyword 'password'", "results": []}, + "CONFPWDS": {"cmd": "find /etc -name '*.c*' 2>/dev/null | xargs -l10 egrep 'pwd|password' 2>/dev/null", "msg": "Config files containing keyword 'password'", "results": []}, + "SHADOW": {"cmd": "cat /etc/shadow 2>/dev/null", "msg": "Shadow File (Privileged)", "results": []} + } + + pwdfiles = execute_cmd(pwdfiles) + print_results(pwdfiles) + + +def enum_procs_pkgs(): + """ + Enumerate Processes and Packages (enum_procs_pkgs) + Enumerate all running processes and installed packages + + :return: Dictionary with process and package information + """ + + # Processes and Applications + print("[*] ENUMERATING PROCESSES AND APPLICATIONS...\n") + + if "debian" in sysinfo["KERNEL"]["results"][0] or "ubuntu" in sysinfo["KERNEL"]["results"][0]: + getpkgs = "dpkg -l | awk '{$1=$4=\"\"; print $0}'" # debian + else: + getpkgs = "rpm -qa | sort -u" # RH/other + + pkgsandprocs = { + "PROCS": {"cmd": "ps waux | awk '{print $1,$2,$9,$10,$11}'", "msg": "Current processes", "results": []}, + "PKGS": {"cmd": getpkgs, "msg": "Installed Packages", "results": []} + } + + pkgsandprocs = execute_cmd(pkgsandprocs) + print_results(pkgsandprocs) # comment to reduce output + + otherapps = { + "SUDO": {"cmd": "sudo -V | grep version 2>/dev/null", "msg": "Sudo Version (Check out http://www.exploit-db.com/search/?action=search&filter_page=1&filter_description=sudo)", "results": []}, + "APACHE": {"cmd": "apache2 -v; apache2ctl -M; httpd -v; apachectl -l 2>/dev/null", "msg": "Apache Version and Modules", "results": []}, + "APACHECONF": {"cmd": "cat /etc/apache2/apache2.conf 2>/dev/null", "msg": "Apache Config File", "results": []}, + "SSHAGENTS": {"cmd": "for AGENT in $(ls /tmp| egrep 'ssh-.{10}$'); do echo $AGENT $(stat -c '%U' /tmp/$AGENT);export SSH_AUTH_SOCK=/tmp/$AGENT/$(ls /tmp/$AGENT);timeout 10 ssh-add -l 2>/dev/null;done;", "msg": "Checking for Active SSH Agents", "results": []} + } + + execute_cmd(otherapps) + print_results(otherapps) + + return pkgsandprocs + + +def enum_root_pkg_proc(pkgsandprocs, userinfo): + """ + Enumerate root packages (enum_root_pkg_proc) + Enumerate Root/superuser packages to target based on process information + :param pkgsandprocs: Dictionary with process and package information + :param userinfo: Dictionary with the user information commands and results + + :return: The drive information Dictionary with the commands results included + """ + print("[*] IDENTIFYING PROCESSES AND PACKAGES RUNNING AS ROOT OR OTHER SUPERUSER...\n") + + # find the package information for the processes currently running + # under root or another super user + + procs = pkgsandprocs["PROCS"]["results"] + pkgs = pkgsandprocs["PKGS"]["results"] + supusers = userinfo["SUPUSERS"]["results"] + procdict = {} # dictionary to hold the processes running as super users + + for proc in procs: # loop through each process + relatedpkgs = [] # list to hold the packages related to a process + try: + for user in supusers: # loop through the known super users + if (user != "") and (user in proc): # if the process is being run by a super user + procname = proc.split(" ")[4] # grab the process name + if "/" in procname: + splitname = procname.split("/") + procname = splitname[len(splitname)-1] + for pkg in pkgs: # loop through the packages + if not len(procname) < 3: # name too short to get reliable package results + if procname in pkg: + if procname in procdict: + relatedpkgs = procdict[proc] # if already in the dict, grab its pkg list + if pkg not in relatedpkgs: + relatedpkgs.append(pkg) # add pkg to the list + procdict[proc] = relatedpkgs # add any found related packages to the process dictionary entry + except: + pass + + for key in procdict: + print(" " + key) # print the process name + try: + if not procdict[key][0] == "": # only print the rest if related packages were found + print(" Possible Related Packages: ") + for entry in procdict[key]: + print(" " + entry) # print each related package + except IndexError: + pass + + +def enum_dev_tools(): + """ + Enumerate Development Tools (enum_dev_tools) + Enumerate installed development tools and save the results + + :return: Dictionary of installed development tool results + """ + + print("[*] ENUMERATING INSTALLED LANGUAGES/TOOLS FOR SPLOIT BUILDING...\n") + + devtools = {"TOOLS": {"cmd": "which awk perl python ruby gcc cc vi vim nmap find netcat nc wget tftp ftp 2>/dev/null", "msg": "Installed Tools", "results": []}} + execute_cmd(devtools) + print_results(devtools) + + return devtools + + +def enum_shell_esapes(devtools): + """ + Enumerate Filesystem Information (enum_shell_escapes) + Enumerate possible shell escape techniques based on available development tools + :param devtools: Dictionary of installed development tool results + + :return: None + """ + + print("[+] Related Shell Escape Sequences...\n") + + escapecmd = { + "vi": [":!bash", ":set shell=/bin/bash:shell"], + "awk": ["awk 'BEGIN {system(\"/bin/bash\")}'"], + "perl": ["perl -e 'exec \"/bin/bash\";'"], + "find": ["find / -exec /usr/bin/awk 'BEGIN {system(\"/bin/bash\")}' \\;"], + "nmap": ["--interactive"] + } + + for cmd in escapecmd: + for result in devtools["TOOLS"]["results"]: + if cmd in result: + for item in escapecmd[cmd]: + print(" " + cmd + "-->\t" + item) + + +def find_likely_exploits(sysinfo, devtools, pkgsandprocs, driveinfo): + """ + Enumerate Likely Exploits (find_likely_exploits) + Enumerate possible exploits based on system information and installed packages + :param sysinfo: Dictionary of system information results + :param devtools: Dictionary of installed development tool results + :param pkgsandprocs: Dictionary with process and package information + :param driveinfo: Dictionary with drive information results + + :return: The drive information Dictionary with the commands results included + TODO: Parse parse out the filesystem results for remote file systems and credentials + """ + + print("[*] FINDING RELEVENT PRIVILEGE ESCALATION EXPLOITS...\n") + + # Now check for relevant exploits (note: this list should be updated over time; source: Exploit-DB) + # sploit format = sploit name : {minversion, maxversion, exploitdb#, language, {keywords for applicability}} -- current keywords are 'kernel', 'proc', 'pkg' (unused), and 'os' + sploits = { + "2.2.x-2.4.x ptrace kmod local exploit": {"minver": "2.2", "maxver": "2.4.99", "exploitdb": "3", "lang": "c", "keywords": {"loc": ["kernel"], "val": "kernel"}}, + "< 2.4.20 Module Loader Local Root Exploit": {"minver": "0", "maxver": "2.4.20", "exploitdb": "12", "lang": "c", "keywords": {"loc": ["kernel"], "val": "kernel"}}, + "2.4.22 "'do_brk()'" local Root Exploit (PoC)": {"minver": "2.4.22", "maxver": "2.4.22", "exploitdb": "129", "lang": "asm", "keywords": {"loc": ["kernel"], "val": "kernel"}}, + "<= 2.4.22 (do_brk) Local Root Exploit (working)": {"minver": "0", "maxver": "2.4.22", "exploitdb": "131", "lang": "c", "keywords": {"loc": ["kernel"], "val": "kernel"}}, + "2.4.x mremap() bound checking Root Exploit": {"minver": "2.4", "maxver": "2.4.99", "exploitdb": "145", "lang": "c", "keywords": {"loc": ["kernel"], "val": "kernel"}}, + "<= 2.4.29-rc2 uselib() Privilege Elevation": {"minver": "0", "maxver": "2.4.29", "exploitdb": "744", "lang": "c", "keywords": {"loc": ["kernel"], "val": "kernel"}}, + "2.4 uselib() Privilege Elevation Exploit": {"minver": "2.4", "maxver": "2.4", "exploitdb": "778", "lang": "c", "keywords": {"loc": ["kernel"], "val": "kernel"}}, + "2.4.x / 2.6.x uselib() Local Privilege Escalation Exploit": {"minver": "2.4", "maxver": "2.6.99", "exploitdb": "895", "lang": "c", "keywords": {"loc": ["kernel"], "val": "kernel"}}, + "2.4/2.6 bluez Local Root Privilege Escalation Exploit (update)": {"minver": "2.4", "maxver": "2.6.99", "exploitdb": "926", "lang": "c", "keywords": {"loc": ["proc", "pkg"], "val": "bluez"}}, + "<= 2.6.11 (CPL 0) Local Root Exploit (k-rad3.c)": {"minver": "0", "maxver": "2.6.11", "exploitdb": "1397", "lang": "c", "keywords": {"loc": ["kernel"], "val": "kernel"}}, + "MySQL 4.x/5.0 User-Defined Function Local Privilege Escalation Exploit": {"minver": "0", "maxver": "99", "exploitdb": "1518", "lang": "c", "keywords": {"loc": ["proc", "pkg"], "val": "mysql"}}, + "2.6.13 <= 2.6.17.4 sys_prctl() Local Root Exploit": {"minver": "2.6.13", "maxver": "2.6.17.4", "exploitdb": "2004", "lang": "c", "keywords": {"loc": ["kernel"], "val": "kernel"}}, + "2.6.13 <= 2.6.17.4 sys_prctl() Local Root Exploit (2)": {"minver": "2.6.13", "maxver": "2.6.17.4", "exploitdb": "2005", "lang": "c", "keywords": {"loc": ["kernel"], "val": "kernel"}}, + "2.6.13 <= 2.6.17.4 sys_prctl() Local Root Exploit (3)": {"minver": "2.6.13", "maxver": "2.6.17.4", "exploitdb": "2006", "lang": "c", "keywords": {"loc": ["kernel"], "val": "kernel"}}, + "2.6.13 <= 2.6.17.4 sys_prctl() Local Root Exploit (4)": {"minver": "2.6.13", "maxver": "2.6.17.4", "exploitdb": "2011", "lang": "sh", "keywords": {"loc": ["kernel"], "val": "kernel"}}, + "<= 2.6.17.4 (proc) Local Root Exploit": {"minver": "0", "maxver": "2.6.17.4", "exploitdb": "2013", "lang": "c", "keywords": {"loc": ["kernel"], "val": "kernel"}}, + "2.6.13 <= 2.6.17.4 prctl() Local Root Exploit (logrotate)": {"minver": "2.6.13", "maxver": "2.6.17.4", "exploitdb": "2031", "lang": "c", "keywords": {"loc": ["kernel"], "val": "kernel"}}, + "Ubuntu/Debian Apache 1.3.33/1.3.34 (CGI TTY) Local Root Exploit": {"minver": "4.10", "maxver": "7.04", "exploitdb": "3384", "lang": "c", "keywords": {"loc": ["os"], "val": "debian"}}, + "Linux/Kernel 2.4/2.6 x86-64 System Call Emulation Exploit": {"minver": "2.4", "maxver": "2.6", "exploitdb": "4460", "lang": "c", "keywords": {"loc": ["kernel"], "val": "kernel"}}, + "< 2.6.11.5 BLUETOOTH Stack Local Root Exploit": {"minver": "0", "maxver": "2.6.11.5", "exploitdb": "4756", "lang": "c", "keywords": {"loc": ["proc", "pkg"], "val": "bluetooth"}}, + "2.6.17 - 2.6.24.1 vmsplice Local Root Exploit": {"minver": "2.6.17", "maxver": "2.6.24.1", "exploitdb": "5092", "lang": "c", "keywords": {"loc": ["kernel"], "val": "kernel"}}, + "2.6.23 - 2.6.24 vmsplice Local Root Exploit": {"minver": "2.6.23", "maxver": "2.6.24", "exploitdb": "5093", "lang": "c", "keywords": {"loc": ["os"], "val": "debian"}}, + "Debian OpenSSL Predictable PRNG Bruteforce SSH Exploit": {"minver": "0", "maxver": "99", "exploitdb": "5720", "lang": "python", "keywords": {"loc": ["os"], "val": "debian"}}, + "Linux Kernel < 2.6.22 ftruncate()/open() Local Exploit": {"minver": "0", "maxver": "2.6.22", "exploitdb": "6851", "lang": "c", "keywords": {"loc": ["kernel"], "val": "kernel"}}, + "< 2.6.29 exit_notify() Local Privilege Escalation Exploit": {"minver": "0", "maxver": "2.6.29", "exploitdb": "8369", "lang": "c", "keywords": {"loc": ["kernel"], "val": "kernel"}}, + "2.6 UDEV Local Privilege Escalation Exploit": {"minver": "2.6", "maxver": "2.6.99", "exploitdb": "8478", "lang": "c", "keywords": {"loc": ["proc", "pkg"], "val": "udev"}}, + "2.6 UDEV < 141 Local Privilege Escalation Exploit": {"minver": "2.6", "maxver": "2.6.99", "exploitdb": "8572", "lang": "c", "keywords": {"loc": ["proc", "pkg"], "val": "udev"}}, + "2.6.x ptrace_attach Local Privilege Escalation Exploit": {"minver": "2.6", "maxver": "2.6.99", "exploitdb": "8673", "lang": "c", "keywords": {"loc": ["kernel"], "val": "kernel"}}, + "2.6.29 ptrace_attach() Local Root Race Condition Exploit": {"minver": "2.6.29", "maxver": "2.6.29", "exploitdb": "8678", "lang": "c", "keywords": {"loc": ["kernel"], "val": "kernel"}}, + "Linux Kernel <=2.6.28.3 set_selection() UTF-8 Off By One Local Exploit": {"minver": "0", "maxver": "2.6.28.3", "exploitdb": "9083", "lang": "c", "keywords": {"loc": ["kernel"], "val": "kernel"}}, + "Test Kernel Local Root Exploit 0day": {"minver": "2.6.18", "maxver": "2.6.30", "exploitdb": "9191", "lang": "c", "keywords": {"loc": ["kernel"], "val": "kernel"}}, + "PulseAudio (setuid) Priv. Escalation Exploit (ubu/9.04)(slack/12.2.0)": {"minver": "2.6.9", "maxver": "2.6.30", "exploitdb": "9208", "lang": "c", "keywords": {"loc": ["pkg"], "val": "pulse"}}, + "2.x sock_sendpage() Local Ring0 Root Exploit": {"minver": "2", "maxver": "2.99", "exploitdb": "9435", "lang": "c", "keywords": {"loc": ["kernel"], "val": "kernel"}}, + "2.x sock_sendpage() Local Root Exploit 2": {"minver": "2", "maxver": "2.99", "exploitdb": "9436", "lang": "c", "keywords": {"loc": ["kernel"], "val": "kernel"}}, + "2.4/2.6 sock_sendpage() ring0 Root Exploit (simple ver)": {"minver": "2.4", "maxver": "2.6.99", "exploitdb": "9479", "lang": "c", "keywords": {"loc": ["kernel"], "val": "kernel"}}, + "2.6 < 2.6.19 (32bit) ip_append_data() ring0 Root Exploit": {"minver": "2.6", "maxver": "2.6.19", "exploitdb": "9542", "lang": "c", "keywords": {"loc": ["kernel"], "val": "kernel"}}, + "2.4/2.6 sock_sendpage() Local Root Exploit (ppc)": {"minver": "2.4", "maxver": "2.6.99", "exploitdb": "9545", "lang": "c", "keywords": {"loc": ["kernel"], "val": "kernel"}}, + "< 2.6.19 udp_sendmsg Local Root Exploit (x86/x64)": {"minver": "0", "maxver": "2.6.19", "exploitdb": "9574", "lang": "c", "keywords": {"loc": ["kernel"], "val": "kernel"}}, + "< 2.6.19 udp_sendmsg Local Root Exploit": {"minver": "0", "maxver": "2.6.19", "exploitdb": "9575", "lang": "c", "keywords": {"loc": ["kernel"], "val": "kernel"}}, + "2.4/2.6 sock_sendpage() Local Root Exploit [2]": {"minver": "2.4", "maxver": "2.6.99", "exploitdb": "9598", "lang": "c", "keywords": {"loc": ["kernel"], "val": "kernel"}}, + "2.4/2.6 sock_sendpage() Local Root Exploit [3]": {"minver": "2.4", "maxver": "2.6.99", "exploitdb": "9641", "lang": "c", "keywords": {"loc": ["kernel"], "val": "kernel"}}, + "2.4.1-2.4.37 and 2.6.1-2.6.32-rc5 Pipe.c Privelege Escalation": {"minver": "2.4.1", "maxver": "2.6.32", "exploitdb": "9844", "lang": "python", "keywords": {"loc": ["kernel"], "val": "kernel"}}, + "'pipe.c' Local Privilege Escalation Vulnerability": {"minver": "2.4.1", "maxver": "2.6.32", "exploitdb": "10018", "lang": "sh", "keywords": {"loc": ["kernel"], "val": "kernel"}}, + "2.6.18-20 2009 Local Root Exploit": {"minver": "2.6.18", "maxver": "2.6.20", "exploitdb": "10613", "lang": "c", "keywords": {"loc": ["kernel"], "val": "kernel"}}, + "Apache Spamassassin Milter Plugin Remote Root Command Execution": {"minver": "0", "maxver": "99", "exploitdb": "11662", "lang": "sh", "keywords": {"loc": ["proc"], "val": "spamass-milter"}}, + "<= 2.6.34-rc3 ReiserFS xattr Privilege Escalation": {"minver": "0", "maxver": "2.6.34", "exploitdb": "12130", "lang": "python", "keywords": {"loc": ["mnt"], "val": "reiser"}}, + "Ubuntu PAM MOTD local root": {"minver": "7", "maxver": "10.04", "exploitdb": "14339", "lang": "sh", "keywords": {"loc": ["os"], "val": "ubuntu"}}, + "< 2.6.36-rc1 CAN BCM Privilege Escalation Exploit": {"minver": "0", "maxver": "2.6.36", "exploitdb": "14814", "lang": "c", "keywords": {"loc": ["kernel"], "val": "kernel"}}, + "Kernel ia32syscall Emulation Privilege Escalation": {"minver": "0", "maxver": "99", "exploitdb": "15023", "lang": "c", "keywords": {"loc": ["kernel"], "val": "kernel"}}, + "Linux RDS Protocol Local Privilege Escalation": {"minver": "0", "maxver": "2.6.36", "exploitdb": "15285", "lang": "c", "keywords": {"loc": ["kernel"], "val": "kernel"}}, + "<= 2.6.37 Local Privilege Escalation": {"minver": "0", "maxver": "2.6.37", "exploitdb": "15704", "lang": "c", "keywords": {"loc": ["kernel"], "val": "kernel"}}, + "< 2.6.37-rc2 ACPI custom_method Privilege Escalation": {"minver": "0", "maxver": "2.6.37", "exploitdb": "15774", "lang": "c", "keywords": {"loc": ["kernel"], "val": "kernel"}}, + "CAP_SYS_ADMIN to root Exploit": {"minver": "0", "maxver": "99", "exploitdb": "15916", "lang": "c", "keywords": {"loc": ["kernel"], "val": "kernel"}}, + "CAP_SYS_ADMIN to Root Exploit 2 (32 and 64-bit)": {"minver": "0", "maxver": "99", "exploitdb": "15944", "lang": "c", "keywords": {"loc": ["kernel"], "val": "kernel"}}, + "< 2.6.36.2 Econet Privilege Escalation Exploit": {"minver": "0", "maxver": "2.6.36.2", "exploitdb": "17787", "lang": "c", "keywords": {"loc": ["kernel"], "val": "kernel"}}, + "Sendpage Local Privilege Escalation": {"minver": "0", "maxver": "99", "exploitdb": "19933", "lang": "ruby", "keywords": {"loc": ["kernel"], "val": "kernel"}}, + "2.4.18/19 Privileged File Descriptor Resource Exhaustion Vulnerability": {"minver": "2.4.18", "maxver": "2.4.19", "exploitdb": "21598", "lang": "c", "keywords": {"loc": ["kernel"], "val": "kernel"}}, + "2.2.x/2.4.x Privileged Process Hijacking Vulnerability (1)": {"minver": "2.2", "maxver": "2.4.99", "exploitdb": "22362", "lang": "c", "keywords": {"loc": ["kernel"], "val": "kernel"}}, + "2.2.x/2.4.x Privileged Process Hijacking Vulnerability (2)": {"minver": "2.2", "maxver": "2.4.99", "exploitdb": "22363", "lang": "c", "keywords": {"loc": ["kernel"], "val": "kernel"}}, + "Samba 2.2.8 Share Local Privilege Elevation Vulnerability": {"minver": "2.2.8", "maxver": "2.2.8", "exploitdb": "23674", "lang": "c", "keywords": {"loc": ["proc", "pkg"], "val": "samba"}}, + "open-time Capability file_ns_capable() - Privilege Escalation Vulnerability": {"minver": "0", "maxver": "99", "exploitdb": "25307", "lang": "c", "keywords": {"loc": ["kernel"], "val": "kernel"}}, + "open-time Capability file_ns_capable() Privilege Escalation": {"minver": "0", "maxver": "99", "exploitdb": "25450", "lang": "c", "keywords": {"loc": ["kernel"], "val": "kernel"}}, + } + + # variable declaration + os = sysinfo["OS"]["results"][0] + version = sysinfo["KERNEL"]["results"][0].split(" ")[2].split("-")[0] + langs = devtools["TOOLS"]["results"] + procs = pkgsandprocs["PROCS"]["results"] + kernel = str(sysinfo["KERNEL"]["results"][0]) + mount = driveinfo["MOUNT"]["results"] + # pkgs = pkgsandprocs["PKGS"]["results"] # TODO currently not using packages for sploit appicability but may in future + + # lists to hold ranked, applicable sploits + # note: this is a best-effort, basic ranking designed to help in prioritizing priv escalation exploit checks + # all applicable exploits should be checked and this function could probably use some improvement + avgprob = [] + highprob = [] + + for sploit in sploits: + lang = 0 # use to rank applicability of sploits + keyword = sploits[sploit]["keywords"]["val"] + sploitout = sploit + " || " + "http://www.exploit-db.com/exploits/" + sploits[sploit]["exploitdb"] + " || " + "Language=" + sploits[sploit]["lang"] + # first check for kernell applicability + if (version >= sploits[sploit]["minver"]) and (version <= sploits[sploit]["maxver"]): + # next check language applicability + if (sploits[sploit]["lang"] == "c") and (("gcc" in str(langs)) or ("cc" in str(langs))): + lang = 1 # language found, increase applicability score + elif sploits[sploit]["lang"] == "sh": + lang = 1 # language found, increase applicability score + elif sploits[sploit]["lang"] in str(langs): + lang = 1 # language found, increase applicability score + if lang == 0: + sploitout = sploitout + "**" # added mark if language not detected on system + # next check keyword matches to determine if some sploits have a higher probability of success + for loc in sploits[sploit]["keywords"]["loc"]: + if loc == "proc": + for proc in procs: + if keyword in proc: + highprob.append(sploitout) # if sploit is associated with a running process consider it a higher probability/applicability + break + elif loc == "os": + if (keyword in os) or (keyword in kernel): + highprob.append(sploitout) # if sploit is specifically applicable to this OS consider it a higher probability/applicability + break + elif loc == "mnt": + if keyword in mount: + highprob.append(sploitout) # if sploit is specifically applicable to a mounted file system consider it a higher probability/applicability + break + else: + avgprob.append(sploitout) # otherwise, consider average probability/applicability based only on kernel version + + print(" Note: Exploits relying on a compile/scripting language not detected on this system are marked with a '**' but should still be tested!") + print() + + print(" The following exploits are ranked higher in probability of success because this script detected a related running process, OS, or mounted file system") + for exploit in highprob: + print(" - " + exploit) + print() + + print(" The following exploits are applicable to this kernel version and should be investigated as well") + for exploit in avgprob: + print(" - " + exploit) + + +if __name__ == '__main__': + + try: + import argparse + import sys + + # Parse out all of the command line arguments + parser = argparse.ArgumentParser(description='Try to gather system information and find likely exploits') + parser.add_argument('-s', '--searches', help='Skip time consumming or resource intensive searches', required=False, action='store_true') + parser.add_argument('-w', '--write', help='Wether to write a log file, can be used with -0 to specify name/location ', required=False, action='store_true') + parser.add_argument('-o', '--outfile', help='The file to write results (needs to be writable for current user)', required=False, default='linuxprivchecker.log') + args = parser.parse_args() + + if args.searches: + processsearches = False + else: + processsearches = True + + # if write is requeted, create a custom logger to send stout to log file as well + if args.write: + # import sys for io redirection + import sys + + class Logger(object): + def __init__(self): + self.terminal = sys.stdout + self.log = open(args.outfile, 'a') + + def write(self, message): + self.terminal.write(message) + self.log.write(message) + sys.stdout = Logger() + + except ImportError: + print('Arguments could not be processed, defaulting to print everything') + processsearches = True + + # title / formatting + bigline = "=======================================================================================" + print(bigline) + print(""" + __ _ ____ _ ________ __ + / / (_)___ __ ___ __/ __ \_____(_) __/ ____/ /_ ___ _____/ /_____ _____ + / / / / __ \/ / / / |/_/ /_/ / ___/ / | / / / / __ \/ _ \/ ___/ //_/ _ \/ ___/ + / /___/ / / / / /_/ />