Published | JUMPSEC LABS

BCP, as easy as ABC?

by Matt Lawrence | Dec 2, 2024 | Incident Response

A Business Continuity Plan (BCP) is a strategic playbook created to help an organisation maintain or quickly resume business functions in the face of disruption. (Pratt, Tittel, Lindros, 2023) Be honest now. Who really has a truly effective Business Continuity Plan in 2024? Not the compliance-driven plan that has not been reviewed or tested properly for years. Or the “oh no, this supplier questionnaire is asking for a BCP… quick, write one” plan that won’t be much help in reality. Who has an effective plan that will be genuinely useful to their organisation in a time of crisis? Not many organisations do and it’s understandable. We are not aiming to criticise anybody's hard work here. We get it. To put it mildly, the sheer amount of items on any organisation's to-do list combined with budget and resource constraints often lead to things like Business Continuity Planning being...

Breaking into Libraries – DLL Hijacking

Breaking into Libraries - DLL Hijacking Many of us have likely encountered DLL errors when trying to open Windows applications. If you were like my younger self, you might have...

Active Cyber Defence – Taking back control

Every good cybersecurity article needs a Sun Tzu quote, here is one lesser known quote from Sun Tzu to start us off. What Happened? Recently, JUMPSEC’s Detection and...

How Cloud Migration is Affecting AppSec – A Red Teamer’s Perspective

by Max Corbridge | Jul 4, 2024 | Application Security, Azure Cloud, Azure DevOps, Cloud Red Team, Initial Access, Jumpsec, Red Teaming

Introduction I’ve recently spoken at several conferences about the changes that are underway within red teaming as a result of cloud migration. My team and I have been delivering majority cloud red team work over the last year and the differences are becoming more apparent by the day. One point I’ve mentioned as ‘controversial’ at several of these events is that cloud migration has actually made...

Putting the C2 in C2loudflare

by David Kennedy | Jun 28, 2024 | Adversary Infrastructure, Red Teaming

tl;dr How to bring up an entire C2 infrastructure with all your tooling and their corresponding redirectors within 5 minutes with the help of Azure Snapshots, Cloudflare and Tmux Resurrect. Every so often I seem to stumble across various ideas, that when combined, massively improve my overall productivity at work. Most of these ideas on their own are nothing new, but when used in tandem can...

Bullet Proofing Your Email Gateway

by Patryk Zajdel | Jun 19, 2024 | Hardening, Mail Security, network

In this labs post, I will introduce you to modern security controls that are currently used (but not always correctly) by the vast majority of enterprises, and hopefully by the end of this write-up, the topic will become a little clearer and the concepts will become easier to grasp. In today’s world of spammers, intruders, and fake emails, having a robust setup for your email deliveries is...

What’s in a Name? Writing custom DNS tunnelling protocol, exploiting unexpected AWS Lambda misconfiguration – in a web app Pen test (Part 2)

by Sunny Chau | Jun 13, 2024 | burpsuite, Exploitation, network, Research, Vulnerability

In Part 1 of the series we looked at how an AWS Lambda-powered feature was exploited in a web app penetration test initially leading to RCE and further on with out-of-band data exfiltration via DNS. Though the exact mechanism of achieving remote-code execution with Python was not discussed, we went in depth in how to return data as a result of the code being executed. Initially, with...

What’s in a Name? Writing custom DNS tunnelling protocol, exploiting unexpected AWS Lambda misconfiguration – in a web app Pen test (Part 1)

by Sunny Chau | Jun 6, 2024 | burpsuite, Exploitation, network, Research, Vulnerability

This is a war story of an AWS web application test where remote code execution was first obtained on the client's application. Then I needed to write my own DNS tunnelling 'protocol' to get the data out. Following a number of twists and turns I impersonated the application and attempted to laterally move within the AWS tenant. Before storytelling though, let's start with a public service...

WASM Smuggling for Initial Access and W.A.L.K. Tool Release

by Francesco Iulio | May 31, 2024 | Initial Access, Red Teaming

TL;DR This blog post introduces Web Assembly (WASM) as a powerful alternative to traditional web technologies, highlighting its appeal to cybersecurity professionals for evading security measures for initial access. WASM has been observed being leveraged in the wild as a new payload delivery avenue which can land payloads in a hardened email inbox or instant messaging chats. A new tool, W.A.L.K....

Adventures and Accidental Honeypots in Network Infrastructure: Unravelling Internet Shenanigans

by Ed Chan | May 16, 2024 | Binary Analysis, Network Forensics

Hello World! So, I've been tinkering with network stuff lately, trying to set up some infrastructure.Turns out that in the process, I made a rookie mistake and left a few ports open to the internet! A few months down the line I took a look and to no one’s surprise my server had been bombarded with all sorts of requests. It was receiving a steady stream of traffic, but not the good kind…think of...

Poisoning Pipelines: Azure DevOps Edition

by Francesco Iulio | May 9, 2024 | Azure Cloud, Azure DevOps, Cloud Red Team

Introduction In the ever-evolving realm of cloud services, organisations are ditching the headaches of physical infrastructure management and diving headfirst into the possibilities of cloud platforms. From the humble beginnings of deploying virtual machines and servers, we now find ourselves in a dynamic space with everything from serverless architectures to cloud-based active directories,...

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Next Entries »

JUMPSEC LABS

BCP, as easy as ABC?

Breaking into Libraries – DLL Hijacking

Active Cyber Defence – Taking back control

Putting the C2 in C2loudflare

Bullet Proofing Your Email Gateway

What’s in a Name? Writing custom DNS tunnelling protocol, exploiting unexpected AWS Lambda misconfiguration – in a web app Pen test (Part 2)

What’s in a Name? Writing custom DNS tunnelling protocol, exploiting unexpected AWS Lambda misconfiguration – in a web app Pen test (Part 1)

WASM Smuggling for Initial Access and W.A.L.K. Tool Release

Adventures and Accidental Honeypots in Network Infrastructure: Unravelling Internet Shenanigans

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