Published | JUMPSEC LABS

Building Forensic Expertise: A Two-Part Guide to Investigating a Malicious USB Device (Part 2)

by Emilia Chau, Marin Gheorge, Muhammad Jawad | Sep 11, 2024 | Forensics, Incident Response

In this part 2, we'll walk you through the step-by-step process of setting up and conducting a Digital Forensics and Incident Response (DFIR) investigation using a virtual machine (VM). We’ll cover everything from configuring the VM to ensure it’s completely isolated to tackling the challenges of USB passthrough with a write blocker. You'll also learn about the risks of using public threat intelligence platforms like VirusTotal and discover alternative methods for secure file analysis. Our goal is to share practical experiences and lessons learned from our investigation, offering useful insights and tips for anyone new to the field or looking to refine their DFIR skills. Whether you're a seasoned pro or just starting out, this article provides a clear and detailed look at best practices and important considerations in digital forensics and incident response. Setting Up the Virtual...

Bullet Proofing Your Email Gateway

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...

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

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...

Advisory CVE-2020-13769 – Ivanti Unified Endpoint Manager SQL injection

by xnand | Nov 13, 2020 | Jumpsec, Research

A number of web components in Endpoint Manager do not properly sanitize user input when executing SQL queries, leaving the application vulnerable to injection attacks towards the underlying database. On a standard installation with default options, the account used to query the database is database administrator.

Advisory CVE-2020-13772 – Ivanti Unified Endpoint Manager system information disclosure

by xnand | Nov 13, 2020 | Jumpsec, Research

Ivanti Unified Endpoint Manager’s “ldcient” component expose information about the system that could be used in further attacks against the system.

Advisory CVE-2020-13774 – Ivanti Unified Endpoint Manager authenticated RCE via file upload

by xnand | Nov 12, 2020 | Jumpsec, Research

Improper validation on file upload functionality present in Ivanti Unified Endpoint Manager’s web management console permits an authenticated user to upload .aspx files and execute them on the MS IIS server’s context. The issue is caused by insufficient file extension validation and insecure file operations on the uploaded image, which upon failure will leave the temporarily created files in an accessible location on the server.

Advisory CVE-2020-13770 – Ivanti Unified Endpoint Manager named pipe token impersonation privilege escalation

by xnand | Nov 11, 2020 | Jumpsec, Research

Several services are accessing named pipes with default or overly permissive security attributes; as these services run as user ‘NT AUTHORITY\SYSTEM’, the issue can be used to escalate privileges from a local standard or service account having SeImpersonatePrivilege (eg. user ‘NT AUTHORITY\NETWORK SERVICE’).

Advisory CVE-2020-13771 – Ivanti Unified Endpoint Manager DLL search order hijacking privilege escalation

by xnand | Nov 11, 2020 | Jumpsec, Research

Various services running as user ‘NT AUTHORITY\SYSTEM’ rely on Windows’ DLL search order for loading DLL files that are not present on the filesystem. Under certain circumstances, a local attacker would be able to place a malicious DLL file to obtain code execution in the vulnerable service’s context to elevate privileges.

Pwning Windows Event Logging with YARA rules

by bats3c | Sep 4, 2020 | Exploitation

The Event Log coupled with Windows Event Forwarding and Sysmon can be extremely powerful in the hands of defenders, allowing them to detect attackers every step of the way. Obviously this is an issue for the attackers. Before privilege escalation it is limited what we can do to evade event logging, but once privileges have been elevated it is an equal playing field. In the past I have released a...

Defending Your Malware

by bats3c | Aug 11, 2020 | Exploitation

Malware is an important part of an engagement, though as many security solutions are now evolving past rudimentary signature comparisons to using more advanced techniques to detect malicious activity, it is important that we as attackers understand the methods they are using and how we can avoid them. Consider the following code I wrote for example. #include <stdio.h> #include...

Thunder Eye – Threat Intelligence Aggregator

by Daniel | Jun 7, 2020 | Jumpsec

The project currently code-named Thunder Eye is a threat intelligence aggregator that will act as an internal and external search engine for a variety of intelligence purposes. It will collect and store data varying from vulnerability scans, DNS data, breach lists, torrent sites, honeypot networks, and some manually inserted data sourced from our threat hunting and incident response/SOC...

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JUMPSEC LABS

Building Forensic Expertise: A Two-Part Guide to Investigating a Malicious USB Device (Part 2)

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)

Advisory CVE-2020-13769 – Ivanti Unified Endpoint Manager SQL injection

Advisory CVE-2020-13772 – Ivanti Unified Endpoint Manager system information disclosure

Advisory CVE-2020-13774 – Ivanti Unified Endpoint Manager authenticated RCE via file upload

Advisory CVE-2020-13770 – Ivanti Unified Endpoint Manager named pipe token impersonation privilege escalation

Advisory CVE-2020-13771 – Ivanti Unified Endpoint Manager DLL search order hijacking privilege escalation

Pwning Windows Event Logging with YARA rules

Defending Your Malware

Thunder Eye – Threat Intelligence Aggregator

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