373 lines
25 KiB
Python
373 lines
25 KiB
Python
#!/usr/env python
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###############################################################################################################
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## [Title]: linuxprivchecker.py -- a Linux Privilege Escalation Check Script
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## [Author]: Mike Czumak (T_v3rn1x) -- @SecuritySift
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##-------------------------------------------------------------------------------------------------------------
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## [Details]:
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## This script is intended to be executed locally on a Linux box to enumerate basic system info and
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## search for common privilege escalation vectors such as world writable files, misconfigurations, clear-text
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## passwords and applicable exploits.
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##-------------------------------------------------------------------------------------------------------------
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## [Warning]:
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## This script comes as-is with no promise of functionality or accuracy. I have no plans to maintain updates,
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## I did not write it to be efficient and in some cases you may find the functions may not produce the desired
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## results. For example, the function that links packages to running processes is based on keywords and will
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## not always be accurate. Also, the exploit list included in this function will need to be updated over time.
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## Feel free to change or improve it any way you see fit.
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##-------------------------------------------------------------------------------------------------------------
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## [Modification, Distribution, and Attribution]:
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## You are free to modify and/or distribute this script as you wish. I only ask that you maintain original
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## author attribution and not attempt to sell it or incorporate it into any commercial offering (as if it's
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## worth anything anyway :)
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###############################################################################################################
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# conditional import for older versions of python not compatible with subprocess
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try:
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import subprocess as sub
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compatmode = 0 # newer version of python, no need for compatibility mode
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except ImportError:
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import os # older version of python, need to use os instead
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compatmode = 1
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# title / formatting
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bigline = "================================================================================================="
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smlline = "-------------------------------------------------------------------------------------------------"
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print bigline
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print "LINUX PRIVILEGE ESCALATION CHECKER"
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print bigline
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print
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# loop through dictionary, execute the commands, store the results, return updated dict
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def execCmd(cmdDict):
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for item in cmdDict:
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cmd = cmdDict[item]["cmd"]
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if compatmode == 0: # newer version of python, use preferred subprocess
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out, error = sub.Popen([cmd], stdout=sub.PIPE, stderr=sub.PIPE, shell=True).communicate()
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results = out.split('\n')
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else: # older version of python, use os.popen
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echo_stdout = os.popen(cmd, 'r')
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results = echo_stdout.read().split('\n')
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cmdDict[item]["results"]=results
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return cmdDict
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# print results for each previously executed command, no return value
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def printResults(cmdDict):
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for item in cmdDict:
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msg = cmdDict[item]["msg"]
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results = cmdDict[item]["results"]
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print "[+] " + msg
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for result in results:
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if result.strip() != "":
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print " " + result.strip()
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print
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return
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def writeResults(msg, results):
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f = open("privcheckout.txt", "a");
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f.write("[+] " + str(len(results)-1) + " " + msg)
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for result in results:
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if result.strip() != "":
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f.write(" " + result.strip())
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f.close()
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return
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# Basic system info
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print "[*] GETTING BASIC SYSTEM INFO...\n"
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results=[]
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sysInfo = {"OS":{"cmd":"cat /etc/issue","msg":"Operating System","results":results},
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"KERNEL":{"cmd":"cat /proc/version","msg":"Kernel","results":results},
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"HOSTNAME":{"cmd":"hostname", "msg":"Hostname", "results":results}
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}
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sysInfo = execCmd(sysInfo)
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printResults(sysInfo)
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# Networking Info
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print "[*] GETTING NETWORKING INFO...\n"
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netInfo = {"NETINFO":{"cmd":"/sbin/ifconfig -a", "msg":"Interfaces", "results":results},
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"ROUTE":{"cmd":"route", "msg":"Route", "results":results},
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"NETSTAT":{"cmd":"netstat -antup | grep -v 'TIME_WAIT'", "msg":"Netstat", "results":results}
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}
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netInfo = execCmd(netInfo)
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printResults(netInfo)
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# File System Info
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print "[*] GETTING FILESYSTEM INFO...\n"
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driveInfo = {"MOUNT":{"cmd":"mount","msg":"Mount results", "results":results},
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"FSTAB":{"cmd":"cat /etc/fstab 2>/dev/null", "msg":"fstab entries", "results":results}
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}
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driveInfo = execCmd(driveInfo)
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printResults(driveInfo)
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# Scheduled Cron Jobs
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cronInfo = {"CRON":{"cmd":"ls -la /etc/cron* 2>/dev/null", "msg":"Scheduled cron jobs", "results":results},
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"CRONW": {"cmd":"ls -aRl /etc/cron* 2>/dev/null | awk '$1 ~ /w.$/' 2>/dev/null", "msg":"Writable cron dirs", "results":results}
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}
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cronInfo = execCmd(cronInfo)
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printResults(cronInfo)
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# User Info
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print "\n[*] ENUMERATING USER AND ENVIRONMENTAL INFO...\n"
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userInfo = {"WHOAMI":{"cmd":"whoami", "msg":"Current User", "results":results},
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"ID":{"cmd":"id","msg":"Current User ID", "results":results},
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"ALLUSERS":{"cmd":"cat /etc/passwd", "msg":"All users", "results":results},
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"SUPUSERS":{"cmd":"grep -v -E '^#' /etc/passwd | awk -F: '$3 == 0{print $1}'", "msg":"Super Users Found:", "results":results},
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"HISTORY":{"cmd":"ls -la ~/.*_history; ls -la /root/.*_history 2>/dev/null", "msg":"Root and current user history (depends on privs)", "results":results},
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"ENV":{"cmd":"env 2>/dev/null | grep -v 'LS_COLORS'", "msg":"Environment", "results":results},
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"SUDOERS":{"cmd":"cat /etc/sudoers 2>/dev/null | grep -v '#' 2>/dev/null", "msg":"Sudoers (privileged)", "results":results},
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"LOGGEDIN":{"cmd":"w 2>/dev/null", "msg":"Logged in User Activity", "results":results}
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}
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userInfo = execCmd(userInfo)
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printResults(userInfo)
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if "root" in userInfo["ID"]["results"][0]:
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print "[!] ARE YOU SURE YOU'RE NOT ROOT ALREADY?\n"
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# File/Directory Privs
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print "[*] ENUMERATING FILE AND DIRECTORY PERMISSIONS/CONTENTS...\n"
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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":results},
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"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":results},
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"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":results},
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"SUID":{"cmd":"find / \(-perm -2000 -o -perm -4000 \) -exec ls -ld {} \; 2>/dev/null", "msg":"SUID/SGID Files and Directories", "results":results},
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"ROOTHOME":{"cmd":"ls -ahlR /root 2>/dev/null", "msg":"Checking if root's home folder is accessible", "results":results}
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}
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fdPerms = execCmd(fdPerms)
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printResults(fdPerms)
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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":results},
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"CONFPWDS":{"cmd":"find /etc -name '*.c*' 2>/dev/null | xargs -l10 egrep 'pwd|password' 2>/dev/null", "msg":"Config files containing keyword 'password'", "results":results},
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"SHADOW":{"cmd":"cat /etc/shadow 2>/dev/null", "msg":"Shadow File (Privileged)", "results":results}
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}
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pwdFiles = execCmd(pwdFiles)
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printResults(pwdFiles)
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# Processes and Applications
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print "[*] ENUMERATING PROCESSES AND APPLICATIONS...\n"
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if "debian" in sysInfo["KERNEL"]["results"][0] or "ubuntu" in sysInfo["KERNEL"]["results"][0]:
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getPkgs = "dpkg -l | awk '{$1=$4=\"\"; print $0}'" # debian
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else:
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getPkgs = "rpm -qa | sort -u" # RH/other
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getAppProc = {"PROCS":{"cmd":"ps aux | awk '{print $1,$2,$9,$10,$11}'", "msg":"Current processes", "results":results},
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"PKGS":{"cmd":getPkgs, "msg":"Installed Packages", "results":results}
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}
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getAppProc = execCmd(getAppProc)
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printResults(getAppProc) # comment to reduce output
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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":results},
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"APACHE":{"cmd":"apache2 -v; apache2ctl -M; httpd -v; apachectl -l 2>/dev/null", "msg":"Apache Version and Modules", "results":results},
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"APACHECONF":{"cmd":"cat /etc/apache2/apache2.conf 2>/dev/null", "msg":"Apache Config File", "results":results}
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}
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otherApps = execCmd(otherApps)
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printResults(otherApps)
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print "[*] IDENTIFYING PROCESSES AND PACKAGES RUNNING AS ROOT OR OTHER SUPERUSER...\n"
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# find the package information for the processes currently running
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# under root or another super user
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procs = getAppProc["PROCS"]["results"]
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pkgs = getAppProc["PKGS"]["results"]
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supusers = userInfo["SUPUSERS"]["results"]
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procdict = {} # dictionary to hold the processes running as super users
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for proc in procs: # loop through each process
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relatedpkgs = [] # list to hold the packages related to a process
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try:
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for user in supusers: # loop through the known super users
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if (user != "") and (user in proc): # if the process is being run by a super user
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procname = proc.split(" ")[4] # grab the process name
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if "/" in procname:
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splitname = procname.split("/")
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procname = splitname[len(splitname)-1]
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for pkg in pkgs: # loop through the packages
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if not len(procname) < 3: # name too short to get reliable package results
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if procname in pkg:
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if procname in procdict:
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relatedpkgs = procdict[proc] # if already in the dict, grab its pkg list
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if pkg not in relatedpkgs:
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relatedpkgs.append(pkg) # add pkg to the list
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procdict[proc]=relatedpkgs # add any found related packages to the process dictionary entry
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except:
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pass
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for key in procdict:
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print " " + key # print the process name
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try:
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if not procdict[key][0] == "": # only print the rest if related packages were found
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print " Possible Related Packages: "
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for entry in procdict[key]:
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print " " + entry # print each related package
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except:
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pass
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# EXPLOIT ENUMERATION
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# First discover the avaialable tools
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print
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print "[*] ENUMERATING INSTALLED LANGUAGES/TOOLS FOR SPLOIT BUILDING...\n"
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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":results}}
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devTools = execCmd(devTools)
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printResults(devTools)
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print "[+] Related Shell Escape Sequences...\n"
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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"]}
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for cmd in escapeCmd:
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for result in devTools["TOOLS"]["results"]:
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if cmd in result:
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for item in escapeCmd[cmd]:
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print " " + cmd + "-->\t" + item
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print
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print "[*] FINDING RELEVENT PRIVILEGE ESCALATION EXPLOITS...\n"
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# Now check for relevant exploits (note: this list should be updated over time; source: Exploit-DB)
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# sploit format = sploit name : {minversion, maxversion, exploitdb#, language, {keywords for applicability}} -- current keywords are 'kernel', 'proc', 'pkg' (unused), and 'os'
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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"}},
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"< 2.4.20 Module Loader Local Root Exploit":{"minver":"0", "maxver":"2.4.20", "exploitdb":"12", "lang":"c", "keywords":{"loc":["kernel"], "val":"kernel"}},
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"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"}},
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"<= 2.4.22 (do_brk) Local Root Exploit (working)":{"minver":"0", "maxver":"2.4.22", "exploitdb":"131", "lang":"c", "keywords":{"loc":["kernel"], "val":"kernel"}},
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"2.4.x mremap() bound checking Root Exploit":{"minver":"2.4", "maxver":"2.4.99", "exploitdb":"145", "lang":"c", "keywords":{"loc":["kernel"], "val":"kernel"}},
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"<= 2.4.29-rc2 uselib() Privilege Elevation":{"minver":"0", "maxver":"2.4.29", "exploitdb":"744", "lang":"c", "keywords":{"loc":["kernel"], "val":"kernel"}},
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"2.4 uselib() Privilege Elevation Exploit":{"minver":"2.4", "maxver":"2.4", "exploitdb":"778", "lang":"c", "keywords":{"loc":["kernel"], "val":"kernel"}},
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"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"}},
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"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"}},
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"<= 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"}},
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"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"}},
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"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"}},
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"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"}},
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"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"}},
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"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"}},
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"<= 2.6.17.4 (proc) Local Root Exploit":{"minver":"0", "maxver":"2.6.17.4", "exploitdb":"2013", "lang":"c", "keywords":{"loc":["kernel"], "val":"kernel"}},
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"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"}},
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"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"}},
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"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"}},
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"< 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"}},
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"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"}},
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"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"}},
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"Debian OpenSSL Predictable PRNG Bruteforce SSH Exploit":{"minver":"0", "maxver":"99", "exploitdb":"5720", "lang":"python", "keywords":{"loc":["os"], "val":"debian"}},
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"Linux Kernel < 2.6.22 ftruncate()/open() Local Exploit":{"minver":"0", "maxver":"2.6.22", "exploitdb":"6851", "lang":"c", "keywords":{"loc":["kernel"], "val":"kernel"}},
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"< 2.6.29 exit_notify() Local Privilege Escalation Exploit":{"minver":"0", "maxver":"2.6.29", "exploitdb":"8369", "lang":"c", "keywords":{"loc":["kernel"], "val":"kernel"}},
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"2.6 UDEV Local Privilege Escalation Exploit":{"minver":"2.6", "maxver":"2.6.99", "exploitdb":"8478", "lang":"c", "keywords":{"loc":["proc","pkg"], "val":"udev"}},
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"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"}},
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"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"}},
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"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"}},
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"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"}},
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"Test Kernel Local Root Exploit 0day":{"minver":"2.6.18", "maxver":"2.6.30", "exploitdb":"9191", "lang":"c", "keywords":{"loc":["kernel"], "val":"kernel"}},
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"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"}},
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"2.x sock_sendpage() Local Ring0 Root Exploit":{"minver":"2", "maxver":"2.99", "exploitdb":"9435", "lang":"c", "keywords":{"loc":["kernel"], "val":"kernel"}},
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"2.x sock_sendpage() Local Root Exploit 2":{"minver":"2", "maxver":"2.99", "exploitdb":"9436", "lang":"c", "keywords":{"loc":["kernel"], "val":"kernel"}},
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"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"}},
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"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"}},
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"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"}},
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"< 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"}},
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"< 2.6.19 udp_sendmsg Local Root Exploit":{"minver":"0", "maxver":"2.6.19", "exploitdb":"9575", "lang":"c", "keywords":{"loc":["kernel"], "val":"kernel"}},
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"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"}},
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"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"}},
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"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"}},
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"'pipe.c' Local Privilege Escalation Vulnerability":{"minver":"2.4.1", "maxver":"2.6.32", "exploitdb":"10018", "lang":"sh", "keywords":{"loc":["kernel"], "val":"kernel"}},
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"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"}},
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"Apache Spamassassin Milter Plugin Remote Root Command Execution":{"minver":"0", "maxver":"99", "exploitdb":"11662", "lang":"sh", "keywords":{"loc":["proc"], "val":"spamass-milter"}},
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"<= 2.6.34-rc3 ReiserFS xattr Privilege Escalation":{"minver":"0", "maxver":"2.6.34", "exploitdb":"12130", "lang":"python", "keywords":{"loc":["mnt"], "val":"reiser"}},
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"Ubuntu PAM MOTD local root":{"minver":"7", "maxver":"10.04", "exploitdb":"14339", "lang":"sh", "keywords":{"loc":["os"], "val":"ubuntu"}},
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"< 2.6.36-rc1 CAN BCM Privilege Escalation Exploit":{"minver":"0", "maxver":"2.6.36", "exploitdb":"14814", "lang":"c", "keywords":{"loc":["kernel"], "val":"kernel"}},
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"Kernel ia32syscall Emulation Privilege Escalation":{"minver":"0", "maxver":"99", "exploitdb":"15023", "lang":"c", "keywords":{"loc":["kernel"], "val":"kernel"}},
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"Linux RDS Protocol Local Privilege Escalation":{"minver":"0", "maxver":"2.6.36", "exploitdb":"15285", "lang":"c", "keywords":{"loc":["kernel"], "val":"kernel"}},
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"<= 2.6.37 Local Privilege Escalation":{"minver":"0", "maxver":"2.6.37", "exploitdb":"15704", "lang":"c", "keywords":{"loc":["kernel"], "val":"kernel"}},
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"< 2.6.37-rc2 ACPI custom_method Privilege Escalation":{"minver":"0", "maxver":"2.6.37", "exploitdb":"15774", "lang":"c", "keywords":{"loc":["kernel"], "val":"kernel"}},
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"CAP_SYS_ADMIN to root Exploit":{"minver":"0", "maxver":"99", "exploitdb":"15916", "lang":"c", "keywords":{"loc":["kernel"], "val":"kernel"}},
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"CAP_SYS_ADMIN to Root Exploit 2 (32 and 64-bit)":{"minver":"0", "maxver":"99", "exploitdb":"15944", "lang":"c", "keywords":{"loc":["kernel"], "val":"kernel"}},
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"< 2.6.36.2 Econet Privilege Escalation Exploit":{"minver":"0", "maxver":"2.6.36.2", "exploitdb":"17787", "lang":"c", "keywords":{"loc":["kernel"], "val":"kernel"}},
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"Sendpage Local Privilege Escalation":{"minver":"0", "maxver":"99", "exploitdb":"19933", "lang":"ruby", "keywords":{"loc":["kernel"], "val":"kernel"}},
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"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"}},
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"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"}},
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"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"}},
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"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"}},
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"open-time Capability file_ns_capable() - Privilege Escalation Vulnerability":{"minver":"0", "maxver":"99", "exploitdb":"25307", "lang":"c", "keywords":{"loc":["kernel"], "val":"kernel"}},
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"open-time Capability file_ns_capable() Privilege Escalation":{"minver":"0", "maxver":"99", "exploitdb":"25450", "lang":"c", "keywords":{"loc":["kernel"], "val":"kernel"}},
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}
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# variable declaration
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os = sysInfo["OS"]["results"][0]
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version = sysInfo["KERNEL"]["results"][0].split(" ")[2].split("-")[0]
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langs = devTools["TOOLS"]["results"]
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procs = getAppProc["PROCS"]["results"]
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kernel = str(sysInfo["KERNEL"]["results"][0])
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mount = driveInfo["MOUNT"]["results"]
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#pkgs = getAppProc["PKGS"]["results"] # currently not using packages for sploit appicability but my in future
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# lists to hold ranked, applicable sploits
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# note: this is a best-effort, basic ranking designed to help in prioritizing priv escalation exploit checks
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# all applicable exploits should be checked and this function could probably use some improvement
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avgprob = []
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highprob = []
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|
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for sploit in sploits:
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lang = 0 # use to rank applicability of sploits
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keyword = sploits[sploit]["keywords"]["val"]
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sploitout = sploit + " || " + "http://www.exploit-db.com/exploits/" + sploits[sploit]["exploitdb"] + " || " + "Language=" + sploits[sploit]["lang"]
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# first check for kernell applicability
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if (version >= sploits[sploit]["minver"]) and (version <= sploits[sploit]["maxver"]):
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# next check language applicability
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if (sploits[sploit]["lang"] == "c") and (("gcc" in str(langs)) or ("cc" in str(langs))):
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lang = 1 # language found, increase applicability score
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elif sploits[sploit]["lang"] == "sh":
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lang = 1 # language found, increase applicability score
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elif (sploits[sploit]["lang"] in str(langs)):
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lang = 1 # language found, increase applicability score
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if lang == 0:
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sploitout = sploitout + "**" # added mark if language not detected on system
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# next check keyword matches to determine if some sploits have a higher probability of success
|
|
for loc in sploits[sploit]["keywords"]["loc"]:
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if loc == "proc":
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for proc in procs:
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if keyword in proc:
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highprob.append(sploitout) # if sploit is associated with a running process consider it a higher probability/applicability
|
|
break
|
|
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":
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if keyword in mount:
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highprob.append(sploitout) # if sploit is specifically applicable to a mounted file system consider it a higher probability/applicability
|
|
break
|
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else:
|
|
avgprob.append(sploitout) # otherwise, consider average probability/applicability based only on kernel version
|
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print " Note: Exploits relying on a compile/scripting language not detected on this system are marked with a '**' but should still be tested!"
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print
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print " The following exploits are ranked higher in probability of success because this script detected a related running process, OS, or mounted file system"
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for exploit in highprob:
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print " - " + exploit
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|
print
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print " The following exploits are applicable to this kernel version and should be investigated as well"
|
|
for exploit in avgprob:
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print " - " + exploit
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print
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print "Finished"
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|
print bigline
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