From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Eli Zaretskii Newsgroups: gmane.emacs.bugs Subject: bug#66390: `man' allows to inject arbitrary shell code Date: Sat, 07 Oct 2023 18:10:36 +0300 Message-ID: <83r0m6zcwj.fsf@gnu.org> References: <83wmvyzir2.fsf@gnu.org> <585dcaf0-358e-4a9d-84d1-6fd9c2c8aec5@gmail.com> <83v8bizf9r.fsf@gnu.org> <1865abb8-16cd-4570-9a8a-87cf9430583d@gmail.com> Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="12108"; mail-complaints-to="usenet@ciao.gmane.io" Cc: 66390@debbugs.gnu.org To: Max Nikulin Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Sat Oct 07 17:10:57 2023 Return-path: Envelope-to: geb-bug-gnu-emacs@m.gmane-mx.org Original-Received: from lists.gnu.org ([209.51.188.17]) by ciao.gmane.io with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1qp8xF-0002xG-2b for geb-bug-gnu-emacs@m.gmane-mx.org; Sat, 07 Oct 2023 17:10:57 +0200 Original-Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1qp8x2-0008Bh-Rt; Sat, 07 Oct 2023 11:10:44 -0400 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1qp8x0-0008BU-Hz for bug-gnu-emacs@gnu.org; Sat, 07 Oct 2023 11:10:42 -0400 Original-Received: from debbugs.gnu.org ([2001:470:142:5::43]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1qp8x0-000130-9D for bug-gnu-emacs@gnu.org; Sat, 07 Oct 2023 11:10:42 -0400 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84_2) (envelope-from ) id 1qp8xJ-0006ev-NS for bug-gnu-emacs@gnu.org; Sat, 07 Oct 2023 11:11:01 -0400 X-Loop: help-debbugs@gnu.org Resent-From: Eli Zaretskii Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Sat, 07 Oct 2023 15:11:01 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 66390 X-GNU-PR-Package: emacs Original-Received: via spool by 66390-submit@debbugs.gnu.org id=B66390.169669145225578 (code B ref 66390); Sat, 07 Oct 2023 15:11:01 +0000 Original-Received: (at 66390) by debbugs.gnu.org; 7 Oct 2023 15:10:52 +0000 Original-Received: from localhost ([127.0.0.1]:55659 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1qp8xA-0006eT-Et for submit@debbugs.gnu.org; Sat, 07 Oct 2023 11:10:52 -0400 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:58060) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1qp8x8-0006eF-46 for 66390@debbugs.gnu.org; Sat, 07 Oct 2023 11:10:50 -0400 Original-Received: from fencepost.gnu.org ([2001:470:142:3::e]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1qp8wj-00010X-C8; Sat, 07 Oct 2023 11:10:25 -0400 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=gnu.org; s=fencepost-gnu-org; h=References:Subject:In-Reply-To:To:From:Date: mime-version; bh=pfBG008920iZqFRvdLwbuEJ/JGDgmA1KfKeRu+HWlFY=; b=W9KtxMA+DUE/ zuvrmR9zeHQg9CZFcP6YIlOyVxhfZ5qbqSCdlt3Z+naEsD2c/NP0vsm3VJU3bhDi7FNdAy3pC/ldU Q7X1Ha9Wrhq1Oo5g8MOmQnnLPUV5RssWxLq0jNIQInQPduBCP0Cix+DCs6i/Jd+qh4g4aOToI+hfC MawGVKpBPlrnc1gzjgeQTshNrYDhpVdM2kgO80mi+nDDyZrFVXQ7sCAfKCgRwfVldyyiixZtLJL+5 u9Q7vz0wIa6zIraxoIL5mLM2XLLqlZ/nds550/V2fWFc5uJz2k8XNPuhDDHou17cc8/8lb7dUQ1d9 3TFJ7V2KAqrJmI30YYro2w==; In-Reply-To: <1865abb8-16cd-4570-9a8a-87cf9430583d@gmail.com> (message from Max Nikulin on Sat, 7 Oct 2023 21:29:12 +0700) X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list X-BeenThere: bug-gnu-emacs@gnu.org List-Id: "Bug reports for GNU Emacs, the Swiss army knife of text editors" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Original-Sender: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Xref: news.gmane.io gmane.emacs.bugs:272012 Archived-At: > Date: Sat, 7 Oct 2023 21:29:12 +0700 > Cc: 66390@debbugs.gnu.org > From: Max Nikulin > > On 07/10/2023 21:19, Eli Zaretskii wrote: > > > > Sorry, I disagree. 'man' is an interactive command, so it should not > > second-guess the user who invokes it. Commands that call 'man' > > non-interactively should make sure they call 'man' with a valid > > argument, especially when the argument comes from some file. > > Does man.el provide a function that opens references to man pages, but > that is safe in respect to shell specials? > > Calling of shell commands belongs to implementation details of man.el > and effectively you require that callers must be aware of it. No, I just expect the callers to call 'man' with valid arguments.