[Bug 272092] The 'see_jail_proc' security policy still allows signaling and debugging sub-jails' processes
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Date: Thu, 21 Dec 2023 13:45:08 UTC
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=272092 --- Comment #4 from commit-hook@FreeBSD.org --- A commit in branch stable/13 references this bug: URL: https://cgit.FreeBSD.org/src/commit/?id=9a4a7e5fb6e901e81c8e64a988358ad4b59464a5 commit 9a4a7e5fb6e901e81c8e64a988358ad4b59464a5 Author: Olivier Certner <olce.freebsd@certner.fr> AuthorDate: 2023-08-17 23:54:38 +0000 Commit: Olivier Certner <olce@FreeBSD.org> CommitDate: 2023-12-21 13:36:17 +0000 Fix 'security.bsd.see_jail_proc' by using cr_bsd_visible() As implemented, this security policy would only prevent seeing processes in sub-jails, but would not prevent sending signals to, changing priority of or debugging processes in these, enabling attacks where unprivileged users could tamper with random processes in sub-jails in particular circumstances (conflated UIDs) despite the policy being enforced. PR: 272092 Reviewed by: mhorne Sponsored by: Kumacom SAS Differential Revision: https://reviews.freebsd.org/D40628 (cherry picked from commit 5817169bc4a06a35aa5ef7f5ed18f6cb35037e18) Approved by: markj (mentor) sys/kern/kern_prot.c | 25 +++++++------------------ sys/netinet/in_prot.c | 4 +--- 2 files changed, 8 insertions(+), 21 deletions(-) -- You are receiving this mail because: You are the assignee for the bug.