Path: csiph.com!usenet.pasdenom.info!dedibox.gegeweb.org!gegeweb.eu!nntpfeed.proxad.net!proxad.net!feeder1-2.proxad.net!usenet-fr.net!nerim.net!novso.com!news2.euro.net!newsgate.cistron.nl!newsgate.news.xs4all.nl!post.news.xs4all.nl!not-for-mail Return-Path: X-Original-To: python-list@python.org Delivered-To: python-list@mail.python.org X-Spam-Status: OK 0.003 X-Spam-Evidence: '*H*': 0.99; '*S*': 0.00; 'bash': 0.07; 'exec': 0.07; 'scripts': 0.09; 'python': 0.09; '-rf': 0.09; 'script,': 0.09; 'subject:module': 0.09; "hasn't": 0.15; 'exactly?': 0.16; 'from:addr:torriem': 0.16; 'from:name:michael torrie': 0.16; 'setuid': 0.16; 'subject:accessing': 0.16; 'subject:created': 0.16; 'wrote:': 0.17; 'script.': 0.17; 'shell': 0.18; 'import': 0.21; 'script': 0.24; 'header:In-Reply-To:1': 0.25; 'header:User- Agent:1': 0.26; 'creating': 0.26; 'run': 0.28; 'mind,': 0.29; 'things,': 0.29; 'running': 0.32; 'to:addr:python-list': 0.33; 'pm,': 0.35; 'received:org': 0.36; 'message-id:@gmail.com': 0.36; 'possible': 0.37; 'two': 0.37; 'subject:: ': 0.38; 'to:addr:python.org': 0.39; 'received:192': 0.39; 'received:192.168': 0.40; 'header:Received:5': 0.40; 'your': 0.60; 'most': 0.61; 'different': 0.63; 'more': 0.63; 'dangerous': 0.66; 'angel': 0.93 X-Virus-Scanned: amavisd-new at torriefamily.org Date: Mon, 11 Mar 2013 22:05:07 -0600 From: Michael Torrie User-Agent: Mozilla/5.0 (X11; Linux i686; rv:10.0.12) Gecko/20130105 Thunderbird/10.0.12 MIME-Version: 1.0 To: python-list@python.org Subject: Re: Running external module and accessing the created objects References: <513aecd3$0$6512$c3e8da3$5496439d@news.astraweb.com> <513E7B6B.5070608@davea.name> In-Reply-To: <513E7B6B.5070608@davea.name> Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit X-BeenThere: python-list@python.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: General discussion list for the Python programming language List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Newsgroups: comp.lang.python Message-ID: Lines: 11 NNTP-Posting-Host: 2001:888:2000:d::a6 X-Trace: 1363061123 news.xs4all.nl 6937 [2001:888:2000:d::a6]:57165 X-Complaints-To: abuse@xs4all.nl Xref: csiph.com comp.lang.python:41107 On 03/11/2013 06:48 PM, Dave Angel wrote: > I hope you're just kidding. execfile() and exec() are two of the most > dangerous mechanisms around. import or __import__() would be much > better, as long as your user hasn't already run myapp.py as his script. It's not possible to setuid a python script, so I don't see how execfile or exec is any more dangerous than the user creating a shell script that rm -rf * things, and then running it. Bash "exec's" scripts all the time that users create and provide. How is this different and what issues did you have in mind, exactly?