{"uuid": "f1a01790-1344-4993-97eb-692e12d9fff7", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2019-13272", "type": "seen", "source": "https://github.com/rapid7/metasploit-framework/blob/master/modules/exploits/linux/local/ptrace_traceme_pkexec_helper.rb", "content": "{\"actions\": [], \"aliases\": [], \"arch\": \"x64\", \"author\": [\"Jann Horn\", \"bcoles \", \"timwr\"], \"autofilter_ports\": [], \"autofilter_services\": [], \"check\": true, \"default_credential\": false, \"description\": \"This module exploits an issue in ptrace_link in kernel/ptrace.c before Linux\\n          kernel 5.1.17. This issue can be exploited from a Linux desktop terminal, but\\n          not over an SSH session, as it requires execution from within the context of\\n          a user with an active Polkit agent.\\n          In the Linux kernel before 5.1.17, ptrace_link in kernel/ptrace.c mishandles\\n          the recording of the credentials of a process that wants to create a ptrace\\n          relationship, which allows local users to obtain root access by leveraging\\n          certain scenarios with a parent-child process relationship, where a parent drops\\n          privileges and calls execve (potentially allowing control by an attacker). One\\n          contributing factor is an object lifetime issue (which can also cause a panic).\\n          Another contributing factor is incorrect marking of a ptrace relationship as\\n          privileged, which is exploitable through (for example) Polkit's pkexec helper\\n          with PTRACE_TRACEME.\", \"disclosure_date\": \"2019-07-04\", \"fullname\": \"exploit/linux/local/ptrace_traceme_pkexec_helper\", \"is_install_path\": true, \"mod_time\": \"2026-05-25 08:39:44 +0000\", \"name\": \"Linux Polkit pkexec helper PTRACE_TRACEME local root exploit\", \"needs_cleanup\": true, \"notes\": {\"Reliability\": [\"repeatable-session\"], \"SideEffects\": [\"unknown-side-effects\"], \"Stability\": [\"crash-safe\"]}, \"path\": \"/modules/exploits/linux/local/ptrace_traceme_pkexec_helper.rb\", \"platform\": \"Linux\", \"post_auth\": false, \"rank\": 600, \"ref_name\": \"linux/local/ptrace_traceme_pkexec_helper\", \"references\": [\"CVE-2019-13272\", \"EDB-47133\", \"PACKETSTORM-153663\", \"URL-https://github.com/bcoles/kernel-exploits/tree/master/CVE-2019-13272\", \"URL-https://bugs.chromium.org/p/project-zero/issues/detail?id=1903\"], \"rport\": null, \"session_types\": [\"shell\", \"meterpreter\"], \"targets\": [\"Auto\"], \"type\": \"exploit\"}", "creation_timestamp": "2026-09-08T06:49:11.466702Z"}