Windows Drivers Reverse Engineering Methodology

With this blog post I’d like to sum up my year-long Windows Drivers research; share and detail my own methodology for reverse engineering (WDM) Windows drivers, finding some possible vulnerable code paths as well as understanding their exploitability. I've tried to make it as "noob-friendly" as possible, documenting all the steps I usually perform during my research and including a bonus exercise for the readers. Setting up the lab While in the past, setting up a lab for kernel debugging was a...

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Merry Hackmas: multiple vulnerabilities in MSI’s products

This blog post serves as an advisory for a couple of MSI’s products that are affected by multiple high-severity vulnerabilities in the driver components they are shipped with. All the vulnerabilities are triggered by sending specific IOCTL requests and will allow to: Directly interact with physical memory via the MmMapIoSpace function call, mapping physical memory into a virtual address user-space. Read/write Model-Specific Registers (MSRs) via the __readmsr/__writemsr functions calls. Read/write 1/2/4 bytes to or from an IO port. An attacker could exploit...

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GraphQL – Security Overview and Testing Tips

This is a re-posting of the original article "GraphQL - Security Overview and Testing Tips" that I have wrote on Doyensec With the increasing popularity of GraphQL technology we are summarizing some documentation and tips about common security mistakes. What is GraphQL? GraphQL is a data query language developed by Facebook and publicly released in 2015. It is an alternative to REST API. Even if you don’t see any GraphQL out there, it is likely you’re already using it since it’s running on some...

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Phorum – Full Disclosure

Reporter VoidSec Security Team Advisory VoidSec-16-002 Date of contact 03-03-16 2nd date of contact 16-03-16 3rd date of contact 04-04-16 Vendor last reply 03-03-16 Date of public disclosure 21-04-16 Product Phorum Open Source PHP Forum Software Version 5.2.20   Download the Report [EN] Introduction The purpose of the present project is to assess the security posture of some important aspects of Phorum Forum Software. Phorum is open source forum software with a penchant for speed. Phorum's very flexible hook and module system can satisfy every web master's needs. During the web application security assessment for Phorum, VoidSec assessed the following systems using...

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Avactis – Full Disclosure

Advisory: VoidSec-16-001 Date of contact: 19-01-16 2nd date of contact: 23-01-16 Vendor reply: N/A Date of public disclosure: 12-04-16 Product: Avactis PHP Shopping Cart Version: 4.7.9.Next.47900 Vendor: Avactis   Download the Report [EN] Introduction Avactis is an open source ecommerce Shopping Cart software. The purpose of the present project is to assess the security posture of some important aspects of Avactis PHP Shopping Cart. The activity is performed through Web Application Penetration Test using Grey Box approach. Vulnerabilities: Spreading of Files with Malicious Extensions on Upload New Design and Execution in some circumstances Non-Admin PHP Shell...

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Minds.com – Full Disclosure

Advisory: VoidSec-15-002 Disclosure date: June18, 2015 Vendor: Minds.com Advisory sent: June 17, 2015 Paolo Stagno ( aka voidsec – [email protected] ) Luca Poletti ( aka kalup – [email protected] ) Download the Report [EN] Introduction In those last days a new social network called minds is getting attention over the internet, it aims to give transparency and protection to user data. Thanks to those last two points the new site has attracted the support of online activists including the hacking collective Anonymous. We have then decided to give a look to that amazing platform,...

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Report: Ghost Blogging Platform

Advisory: VoidSec-15-001 Disclosure date: March 03, 2015 Vendor: Ghost Advisory sent: January 26, 2015 First delay: February 24,2015   Download the Report Introduzione In Gennaio, il team VoidSec (voidsec, bughardy, smaury) ha realizzato un web application penetration test sulla piattaforma di blogging Ghost. Ghost è un nuovo content management system dedicato ai blogger che cercano un’alternativa a WordPress. Un crescente numero di utenti ha abbandonato i CMS tradizionali per abbracciare piattaforme più minimali, concentrate sulla lettura e la scrittura, essenziali; in questo Ghost è uno tra i software più popolari e molto utilizzato, sta...

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Report: Yahoo Messenger

Advisory: VoidSec-14-001 Disclosure date: December 08, 2014 CVSS Score: 3.2 Vendor: Yahoo Vulnerability discovery date: November 21, 2014   Scarica il Report [IT] | Download the Report [EN]   Introduzione Android offre agli sviluppatori diverse opzioni per salvare i dati persistenti delle applicazioni. I database locali dovrebbero archiviare i dati in maniera differente, a seconda che i dati siano privati e accessibili solo all’applicazione o all’utente e ad applicazioni esterne. In ogni caso, i dati sensibili dovrebbero sempre essere cifrati per evitare possibili violazioni della privacy. L’applicazione per Android, Yahoo Messenger, utilizza un database...

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