{"uuid": "446d0ec6-e5c0-4ed9-aabc-aa5759434f90", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2019-5420", "type": "seen", "source": "https://github.com/rapid7/metasploit-framework/blob/master/modules/exploits/multi/http/rails_double_tap.rb", "content": "{\"aliases\": [], \"arch\": \"\", \"author\": [\"ooooooo_q\", \"mpgn\", \"sinn3r \"], \"autofilter_ports\": [80, 8080, 443, 8000, 8888, 8880, 8008, 3000, 8443], \"autofilter_services\": [\"http\", \"https\"], \"check\": true, \"default_credential\": false, \"description\": \"This module exploits a vulnerability in Ruby on Rails. In development mode, a Rails\\n          application would use its name as the secret_key_base, and can be easily extracted by\\n          visiting an invalid resource for a path. As a result, this allows a remote user to\\n          create and deliver a signed serialized payload, load it by the application, and gain\\n          remote code execution.\", \"disclosure_date\": \"2019-03-13\", \"fullname\": \"exploit/multi/http/rails_double_tap\", \"is_install_path\": true, \"mod_time\": \"2026-04-22 11:58:04 +0000\", \"name\": \"Ruby On Rails DoubleTap Development Mode secret_key_base Vulnerability\", \"needs_cleanup\": true, \"notes\": {\"AKA\": [\"doubletap\"], \"Reliability\": [\"unknown-reliability\"], \"SideEffects\": [\"ioc-in-logs\"], \"Stability\": [\"crash-safe\"]}, \"path\": \"/modules/exploits/multi/http/rails_double_tap.rb\", \"platform\": \"Linux\", \"post_auth\": false, \"rank\": 600, \"ref_name\": \"multi/http/rails_double_tap\", \"references\": [\"CVE-2019-5420\", \"URL-https://hackerone.com/reports/473888\", \"URL-https://github.com/mpgn/Rails-doubletap-RCE\", \"URL-https://groups.google.com/forum/#!searchin/rubyonrails-security/CVE-2019-5420/rubyonrails-security/IsQKvDqZdKw/UYgRCJz2CgAJ\", \"URL-https://www.zerodayinitiative.com/blog/2019/6/20/remote-code-execution-via-ruby-on-rails-active-storage-insecure-deserialization\"], \"rport\": 3000, \"session_types\": false, \"targets\": [\"Ruby on Rails 5.2 and prior\"], \"type\": \"exploit\"}", "creation_timestamp": "2026-09-08T06:50:10.468447Z"}