{"vulnerability": "cve-2018-18556", "sightings": [{"uuid": "357725ea-9fa8-439a-a46e-361d3b87d55c", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2018-18556", "type": "seen", "source": "MISP/a1e796df-2ad8-4c8d-8b69-737a004e72dd", "content": "", "creation_timestamp": "2025-02-06T03:13:43.000000Z"}, {"uuid": "05434fb0-8d7a-45ed-8614-f6fdd8d1f9e0", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2018-18556", "type": "seen", "source": "MISP/a1e796df-2ad8-4c8d-8b69-737a004e72dd", "content": "", "creation_timestamp": "2025-02-23T04:10:06.000000Z"}, {"uuid": "f7732be4-4089-42e3-a94b-236d2957a745", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2018-18556", "type": "seen", "source": "https://github.com/rapid7/metasploit-framework/blob/master/modules/exploits/linux/ssh/vyos_restricted_shell_privesc.rb", "content": "", "creation_timestamp": "2020-09-19T13:26:48.000000Z"}, {"uuid": "cb0f30ea-8482-4298-a44d-ee9b581dd994", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2018-18556", "type": "seen", "source": "https://github.com/rapid7/metasploit-framework/blob/master/modules/exploits/linux/ssh/vyos_restricted_shell_privesc.rb", "content": "{\"aliases\": [], \"arch\": \"cmd\", \"author\": [\"Rich Mirch\", \"bcoles \"], \"autofilter_ports\": [], \"autofilter_services\": [], \"check\": true, \"default_credential\": false, \"description\": \"This module exploits command injection vulnerabilities and an insecure\\n          default sudo configuration on VyOS versions 1.0.0 <= 1.1.8 to execute\\n          arbitrary system commands as root.\\n\\n          VyOS features a `restricted-shell` system shell intended for use by\\n          low privilege users with operator privileges. This module exploits\\n          a vulnerability in the `telnet` command to break out of the restricted\\n          shell, then uses sudo to exploit a command injection vulnerability in\\n          `/opt/vyatta/bin/sudo-users/vyatta-show-lldp.pl` to execute commands\\n          with root privileges.\\n\\n          This module has been tested successfully on VyOS 1.1.8 amd64 and\\n          VyOS 1.0.0 i386.\", \"disclosure_date\": \"2018-11-05\", \"fullname\": \"exploit/linux/ssh/vyos_restricted_shell_privesc\", \"is_install_path\": true, \"mod_time\": \"2026-04-02 17:30:43 +0000\", \"name\": \"VyOS restricted-shell Escape and Privilege Escalation\", \"needs_cleanup\": null, \"notes\": {\"Reliability\": [\"repeatable-session\"], \"SideEffects\": [], \"Stability\": [\"crash-safe\"]}, \"path\": \"/modules/exploits/linux/ssh/vyos_restricted_shell_privesc.rb\", \"platform\": \"Unix\", \"post_auth\": true, \"rank\": 500, \"ref_name\": \"linux/ssh/vyos_restricted_shell_privesc\", \"references\": [\"CVE-2018-18556\", \"URL-https://blog.vyos.io/the-operator-level-is-proved-insecure-and-will-be-removed-in-the-next-releases\", \"URL-https://blog.mirch.io/2018/11/05/cve-2018-18556-vyos-privilege-escalation-via-sudo-pppd-for-operator-users/\", \"URL-https://github.com/mirchr/security-research/blob/master/vulnerabilities/VyOS/CVE-2018-18556.sh\"], \"rport\": 22, \"session_types\": false, \"targets\": [\"Automatic\"], \"type\": \"exploit\"}", "creation_timestamp": "2026-09-08T06:49:24.929585Z"}]}