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A customer asked that we check out his intranet site, which was used by the company's employees and customers. This was part of a larger security review, and though we'd not actually used SQL injection to penetrate a network before, we were pretty familiar with the general concepts. We were completely successful in this engagement, and wanted to recount the steps taken as an illustration. "SQL Injection" is subset of the an unverified/unsanitized user input vulnerability ("buffer overflows" are a different subset), and the idea is to convince the application to run SQL code that was not intended. If the application is creating SQL strings naively on the fly and then running them, it's straightforward to create some real surprises. We'll note that this was a somewhat winding road with more than one wrong turn, and others with more experience will certainly have different -- and better -- approaches.
SQL Injection Attacks by Example
Une armée de toysoldiers a fait plier un supermarché de jouets pour enfants qui s'était emparé du nom de domaine d'artistes suisses allemands. Une forme d'hacktivisme ludique. Performance artistique, jeu vidéo en réseau, manifestation en ligne, la “ toywar ” fut probablement l’œuvre d’art la plus chère de l’histoire de l’humanité (estimée à 4,5 milliards de dollars).
Une toywar ? 4,5 milliards de dollars ? Article ? OWNI, Digital Journalism
Tarpit & iptables : les armes fatales anti-DDOS !
Le problème est, ma foi, assez simple : En sécurité informatique, on sait de nos jours parer à la grande majorité des menaces. Si on se concentre sur la partie serveur et sur Linux, Grsex / Pax, un coup de hardening, un kernel statique et optimisé, du chroot et ma foi on est déjà pas mal… Les démons comme apaches et Mysql, ainsi que les interprêteurs comme PHP ou Perl, sont protégés contre leurs ennemis intimes : les overflows.
<img class="size-full wp-image-7595 aligncenter" title="moxie-marlinspike" src="http://www.wired.com/images_blogs/threatlevel/2009/07/moxie-marlinspike.jpg" alt="moxie-marlinspike" width="660" height="439" /> A well-known and respected computer-security researcher was detained for several hours Wednesday night by border agents who searched his laptop and cellphones before returning them to him. The researcher, who goes by the hacker handle Moxie Marlinspike, was met by two U.S.