InfoSec Blog

thezero

I’m thezero, Security Researcher and Senior Penetration Tester at Shielder.
In the office I’m the one with the soldering iron.

How to Decrypt Manage Engine PMP Passwords

05/09/2022

How to Decrypt Manage Engine PMP Passwords for Fun and Domain Admin - a Red Teaming Tale

Learn how to decrypt Manage Engine Password Manager Pro (PMP) passwords after exploiting CVE-2022-35405.

15

Min

Fiscal Printer Architecture

16/05/2022

Printing Fake Fiscal Receipts - An Italian Job p.2

Reverse engineering and analysis of a fiscal printer device for fun and (real) profit.

8

Min

Fiscal Printer Architecture

19/04/2022

Printing Fake Fiscal Receipts - An Italian Job p.1

Reverse engineering and analysis of a fiscal printer device for fun and (real) profit.

8

Min

SmartContract

05/04/2022

A Sneak Peek into Smart Contracts Reversing and Emulation

Introduction to web3 security, Smart Contract Reversing (bytecode and decompiled code level) and EVM emulation with Qiling.

8

Min

Qiling

21/03/2022

Reversing embedded device bootloader (U-Boot) - p.2

In the course of these two articles, we will share an analysis of some aspects of reversing a low-level binary.

4

Min

Qiling

08/03/2022

Reversing embedded device bootloader (U-Boot) - p.1

In the course of these two articles, we will share an analysis of some aspects of reversing a low-level binary.

10

Min

Qiling

21/07/2021

QilingLab – Release

Release of the QilingLab challenge.

3

Min

NotSoSmartConfig example run

20/04/2020

NotSoSmartConfig: broadcasting WiFi credentials Over-The-Air

Security analysis of the SmartConfig procol by Espressif and publishing of the NotSoSmartConfig tool, able to retrieve WiFi credentials from a PCAP.

4

Min

XXE to RCE via XML file opening

24/10/2019

Don’t open that XML: XXE to RCE in XML plugins for VS Code, Eclipse, Theia, …

The LSP4XML library used by many IDE and editors was affected by an XXE which lead to RCE exploitable by just opening an XML file.

6

Min

OpenStack's noVNC XSS

19/10/2019

Exploiting an old noVNC XSS (CVE-2017-18635) in OpenStack

OpenStack was using an old version of noVNC affected by a DOM-based XSS that allowed attackers to steal VM tokens and take over VMs.

4

Min