From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Newsgroups: gmane.emacs.help Subject: Re: Printf and quoting in general, SQL injection in particular Date: Sat, 26 Jun 2021 11:37:05 +0200 Message-ID: <20210626093705.GA30774@tuxteam.de> References: <87pmwgdiyj.fsf@zoho.eu> <83y2b3tq07.fsf@gnu.org> <871r8vcrnm.fsf@posteo.net> <20210621141148.GA29347@tuxteam.de> <87zgvjcgh6.fsf@zoho.eu> <87h7hqviu4.fsf@zoho.eu> <87eecp2k6l.fsf@zoho.eu> Mime-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="TB36FDmn/VVEgNH/" Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="28525"; mail-complaints-to="usenet@ciao.gmane.io" User-Agent: Mutt/1.5.21 (2010-09-15) To: help-gnu-emacs Original-X-From: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane-mx.org@gnu.org Sat Jun 26 11:37:50 2021 Return-path: Envelope-to: geh-help-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 1lx4l3-0007B9-Q0 for geh-help-gnu-emacs@m.gmane-mx.org; Sat, 26 Jun 2021 11:37:49 +0200 Original-Received: from localhost ([::1]:44928 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1lx4l2-0001zk-Kg for geh-help-gnu-emacs@m.gmane-mx.org; Sat, 26 Jun 2021 05:37:48 -0400 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:39096) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1lx4kY-0001za-P4 for help-gnu-emacs@gnu.org; Sat, 26 Jun 2021 05:37:18 -0400 Original-Received: from mail.tuxteam.de ([5.199.139.25]:33928) by eggs.gnu.org with esmtps (TLS1.2:DHE_RSA_AES_128_CBC_SHA1:128) (Exim 4.90_1) (envelope-from ) id 1lx4kU-00007S-2e for help-gnu-emacs@gnu.org; Sat, 26 Jun 2021 05:37:18 -0400 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=tuxteam.de; s=mail; h=From:In-Reply-To:Content-Type:MIME-Version:References:Message-ID:Subject:To:Date; bh=CTjd3mJgpUQ85w18WsHXSkgmv12zQvo7LKZzTOBGDvk=; b=aRjHtSAH/rA0ICyF8ud85hoR4WJY364JyDFzNduNkj7NjT+f4tMW4sFKEdxg7QU+nrbp5ji8xe2c5NJeIsOYuA8KZkqhQKDA2FMfj9aMEykZmts9FudWHAb7TFIZDITSo973F1pYe4VMblTOwtnDfs72VCISoqakbm/d5PpWpIFSnbVxFnd5pYhaRhyEHUdtd5NM6uZb4VsH0HZs3nmvz2DC9cxhIOT5Ri9IbhCjtix0R8Q1fZqgUyVvdPpz3rHlR5YRIovN4qPUe7fknvtmXv85wysUHrX6KyfVdJ5L9CG4JFyJIjDKJ0vu+YixcGpmw9FJQl0VEGKA+ab4wD2Jhw==; Original-Received: from tomas by mail.tuxteam.de with local (Exim 4.80) (envelope-from ) id 1lx4kL-00019u-AZ for help-gnu-emacs@gnu.org; Sat, 26 Jun 2021 11:37:05 +0200 Content-Disposition: inline In-Reply-To: Received-SPF: pass client-ip=5.199.139.25; envelope-from=tomas@tuxteam.de; helo=mail.tuxteam.de X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: help-gnu-emacs@gnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Users list for the GNU Emacs text editor List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane-mx.org@gnu.org Original-Sender: "help-gnu-emacs" Xref: news.gmane.io gmane.emacs.help:131250 Archived-At: --TB36FDmn/VVEgNH/ Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Sat, Jun 26, 2021 at 02:30:59PM +0700, Yuri Khan wrote: > On Sat, 26 Jun 2021 at 13:56, Emanuel Berg via Users list for the GNU > Emacs text editor wrote: >=20 > > Relax, this notion that you shouldn't construct file paths by > > string functions, nor SQL queries for that matter, and what > > more? hyperlinks? >=20 > Hyperlinks, too. Mmm. Yummy hyperlinks. You just have to enter "URL parsing injection" to enjoy a colourful bestiary. This is user-provided stuff which is parsed server-side. Creativity! Two nice links (of... thousands?) https://s1gnalcha0s.github.io/node/2015/01/31/SSJS-webshell-injection.html https://www.blackhat.com/docs/us-17/thursday/us-17-Tsai-A-New-Era-Of-SSRF= -Exploiting-URL-Parser-In-Trending-Programming-Languages.pdf I'm all for DIY, but in this case, it comes with one caveat. Know your stuff. Read. Have good data models. Read. Test. Read. Have fun - t --TB36FDmn/VVEgNH/ Content-Type: application/pgp-signature; name="signature.asc" Content-Description: Digital signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.12 (GNU/Linux) iEYEARECAAYFAmDW9UEACgkQBcgs9XrR2kZFLwCeOd3l8QFNiTV9M/YSoEmy1glL y5UAn3zlkLVNPFaHQfW8O0lo/CUgwAyN =Xl3c -----END PGP SIGNATURE----- --TB36FDmn/VVEgNH/--