pentestPromedium

Paperwork

hackthebox

Task: an HTB full box exposing a legacy archive workflow, custom LPD service, localhost PJL printer interface, and a privileged management socket. Solution: chain RFC1179 job-name command injection to lp, abuse PJL file writes for archivist SSH access, then steal a root-opened config FD sent over SCM_RIGHTS.

hackthebox nginx lpd rfc1179 command_injection pjl path_traversal unix_socket scm_rights ssh

source_reviewlpd_command_injectionlocalhost_service_abusepjl_filesystem_writessh_authorized_keys_abuseunix_socket_fd_leakcredential_reuse

$ ls tags/ techniques/

hackthebox nginx lpd rfc1179 command_injection pjl path_traversal unix_socket scm_rights ssh

source_reviewlpd_command_injectionlocalhost_service_abusepjl_filesystem_writessh_authorized_keys_abuseunix_socket_fd_leakcredential_reuse

Analysis

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$ python3 exploit.py --target 192.168.1.1 --port 8080
[*] Connecting to target...
[+] Shell obtained!

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