Rubyzip insecure ZIP handling & Metasploit RCE (CVE-2019-5624)
This is a re-posting of the original article "On insecure zip handling, Rubyzip and Metasploit RCE (CVE-2019-5624)" that I have wrote on Doyensec During one of our projects we had the opportunity to audit a Ruby-on-Rails (RoR) web application handling zip files using the Rubyzip gem. Zip files have always been an interesting entrypoint to triggering multiple vulnerability types, including path traversals and symlink file overwrite attacks. As the library under testing had symlink processing disabled, we focused on path traversal...
Analysis of the Joomla RCE (CVE-2015-8562)
Recently, during a penetration test I have found a vulnerable installation of the Joomla CMS. Yes, I already know that this vulnerability is quite old and that there is a ready to use Metasploit module but here is the catch: the module and other scripts available on internet weren’t working against my environment, furthermore, during the last year a lot of new vulnerabilities rely on the PHP Object Injection and Serialize/Unserialize. That's the reason why I thought it was a good...
GHOST, Analisi Tecnica
GHOST è una grave vulnerabilità presente nella libreria glibc in Linux e consente agli attaccanti di eseguire codice remoto (RCE – Remote Code Execution) senza avere alcuna conoscenza preliminare delle credenziali del sistema. A questa vulnerabilità è stato assegnato il CVE-2015-0235. La vulnerabilità è stata scoperta dai ricercatori di Qualys e colpisce la libreria dalla versione 2.2, inclusa nei sistemi Linux da Novembre dell’anno 2000. Il bug è stato corretto il 21 Maggio 2013 (tra le release 2.17 e 2.18), purtroppo però...
