Young hacker smiling

Zero false positives

Expert intelligence + effective automation

Binary machine learning. Credits:

Binary learning

Learning to exploit binaries

While our main focus, as stated previously, is to apply machine learning (ML) techniques to the discovery of vulnerabilities in source code, that is, a white-box approach to ML-guided hacking, we’ve come across an interesting approach called VDiscover, which is radically different in the following sense: Works on …

Depiction of a deep neural network. Credits:

Deep Hacking

Deep learning for vulnerability discovery

If we have learned anything so far in our quest to understand how machine learning (ML) can be used to detect vulnerabilities in source code, it’s that what matters the most in this process are the different representations of source code which are later fed to the actual ML …

Chucky the actual serial killer doll

The anomaly serial killer doll

Hunting missing checks with anomaly detection

In our previous article we focused on taint-style vulnerabilites, i.e., those that are essentially due to the lack of input sanitization which allows tainted, user-controlled data to reach sensitive functions. Some of these arise due to missing checks in code, such as: failure to check authentication, authorization...

Screen showing source code

Exploiting code graphs

Mining graph representations for vulnerabilities

As we have seen in our previous revision article, probably the most interesting and successful approach to automated vulnerability detection is the pattern-based approach. Since we expect to extract meaningful patterns from the code, we also need a "comprehensive and feature-rich representation"[1] of it. Other...

Robot playing the piano

Crash course in machine learning

A survey of machine learning algorithms

In this article we clarify some of the undefined terms in our previous article and thereby explore a selection of machine learning algorithms and their applications to information security. This is not meant to be an exhaustive list of all machine learning (ML) algorithms and techniques. We would like, however …

greek statue with small angels.

Asymmetric DoS, slow HTTP attack

The story of David and Goliath

Have you ever heard the story of David and Goliath? David, a young boy, goes out to confront a giant, named Goliath. David is the underdog in this fight and is expected to lose. But, everyone underestimates David and his prowess with a slingshot. When David ultimately kills Goliath, he …

Can machines learn to hack?

Machine-learning to hack

Machine learning for vulnerability discovery

To date the most important security vulnerabilities have been found via laborius code auditing. Also, this is the only way vulnerabilities can be found and fixed during development. However, as software production rates increase, so does the need for a reliable, automated method for checking or classifiying this code in …

Hand holding a pirate toy

Bounty Writeup

How to resolve HTB Bounty

Scanning Phase First, we check the IP of the Bounty machine and try a ping to see if we have access. ping host$ ping -c2 Then, we scan the ports with nmap. In this case, we’re going to use basic nmap. host$ nmap 10.10 …

man standing in front of blue and red lights

LibSSH new Vulnerability

New vulnerability on libssh CVE-2018-10933

The new vulnerability in LibSSH, tracked as CVE-2018-10933, resides on the server code which can enable a client to bypass the authentication process and create channels without permission. This affects servers using versions 0.6 and above being used in server mode. The bug was discovered by Peter Winter-Smith of …

Developers programming in an office

DevOops Writeup

How to resolve HTB DevOops

Scanning Phase First, we check the IP of the DevOops machine and try a ping to see if we have access. Then, we scan the ports with nmap. In this case, we’re going to use basic nmap. port scannning 1nmap And, we see that …

The Treacherous POODLE

The Treacherous POODLE

How does the SSL fallback's works

A gas vendor, each week receives gas, which he stores in pipes and discretely refills them with water. Each day sells this gas to his clients, unbeknown to an "auditor" in black robes - aka Poodle - paying attention to this situation. One day the "auditor" undercover, tells the vendor he will …

Release the beast

Release the BEAST!

Understanding the BEAST

The Browser Exploit Attack on SSL/TLS (B.E.A.S.T), - bet you thougth it was a rampage hack that launched nukes - it is a practical attack demonstrated by Thai Duong and Julian Rizzo at ekoparty in 2011. That was the lamest introduction ever, it’s not because the …

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