Tetrane's BLOG

Looking at a Linux CVE with REVEN 2.8.2

17 Jun 2021 by Louis and Quentin - REVEN - Linux Reverse Engineering Vulnerability Detection Analysis API Taint REVEN

Want to analyze Linux systems or applications using Tetrane’s Timeless Debugging and Analysis (TDnA) platform? The freshly released REVEN 2.8.2 adds official support for Linux to the Professional edition! In this article, we will see a step by step analysis of a recent vulnerability–CVE-2021-3156– from the record of an exploit...

Reverse Engineering through trace diffing - several approaches

03 Jun 2021 by Mathieu - REVEN - Reverse Engineering REVEN Diff Comparison

When doing software discovery or vulnerability analysis, it’s often helpful to analyze the difference between two situations: before/after patches, before/after changing an input, crash/no-crash related to changes in fuzzer-generated inputs, etc. In this article, we will see how two analysis scenarios in REVEN can be compared by diffing their traces...

REVEN Open Demo and Open Lab videos

13 Apr 2021 by Marc - Conference - Reverse Engineering REVEN CVE VIDEO

On March 19th, 2021, we did an Open Demo to present REVEN Timeless Analysis and Debugging Platform and its main features throught demonstrations. We recorded those demonstrations to enable everyone to discover REVEN. The 1h video is accessible below. It gives a good overview of how to: Record a trace...

Success Story - How 0patch uses REVEN to speed up micropatching

09 Apr 2021 by Marc - Conference - Reverse Engineering REVEN CVE Microsoft Windows Patch

0patch delivers miniature patches of code (“micropatches”) to computers and other devices worldwide in order to fix software vulnerabilities in various, even closed source products. After attending a REVEN Lab, they bought REVEN to speed up their RE activities. Recently they wrote a great article on how they used REVEN...

Announcing REVEN version 2.8

06 Apr 2021 by Louis and Marc - REVEN - REVEN Announcement Releases

Tetrane is pleased to announce the release of REVEN Enterprise and REVEN Professional 2.8. REVEN is an automated Reverse Engineering Platform designed to go x10 faster & x10 deeper using Timeless Analysis. Technically, REVEN captures a time slice of a full system execution (CPU, Memory, Hardware events) to provide unique...

Recording vulnerabilities related to non-deterministic bugs, crashes or other complex cases

01 Apr 2021 by Mathieu - REVEN - Reverse Engineering REVEN Crash Fuzzing Automation

To analyze non-deterministic bugs or crashes, one must be able to observe exactly what happens when the problem occurs. This is a notoriously tedious task when working with a debugger or from logs. However with REVEN, once you capture the exact period of time during which the problem happens, then...

Interprocess Use of Uninitialized Memory detection using REVEN

09 Mar 2021 by Quentin and Louis - REVEN - Reverse Engineering Vulnerability Detection Analysis API Taint REVEN

Continuing in the series of vulnerability detection scripts, such as the BoF article and the UAF article, today’s article introduces a notebook to detect uses of uninitialized heap memory in REVEN scenarios. In memory unsafe languages such as C, it is common for variables to start their life uninitialized. Some...

Who corrupted the data! Get a fast and precise answer with the taint

18 Feb 2021 by Louis - REVEN - REVEN Reverse Engineering Taint

In vulnerability analysis a frequent question that needs answering is: “who corrupted this data?”. Timeless Debugging and Analysis (TDnA) systems like REVEN can provide fast and accurate answers to this particular question. For example, the Memory History feature of REVEN allows to see the entire list of accesses to a...

REVEN OpenLab - Feb 18th, 2021

17 Feb 2021 by Marc - Conference - Reverse Engineering REVEN CVE

Join us on February 18th for an Open Lab where you will analyze 2 recent CVEs using REVEN Timeless Analysis and Debugging Platform. After a short introduction, you will take the driving seat (each participant gets her/his own REVEN instance) to analyze: A program crash CVE-2020-16898: Microsoft Windows TCP/IP Remote...

Detecting Buffer-Overflow vulnerabilities using REVEN

11 Feb 2021 by Quentin - REVEN - Reverse Engineering Vulnerability Detection Analysis API Taint REVEN

The REVEN Buffer-Overflow (BoF) detection capability is built on the top of the Use-after-Free (UaF) script. Therefore, it is best to read the UaF article before this one. We will explain how the UaF detection Jupyter notebook led us to develop a Buffer-Overflow detection Jupyter notebook (available on Github) and...



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