JUMPSEC LABS

The JUMPSEC Lab is a place where the the technical team get creative and showcase their latest security research, publications, interesting news and general thoughts!  We love what we do and are passionate about security, with some great upcoming projects planned, bookmark our site and stick around to see what we are working on.

Detecting known DLL hijacking and named pipe token impersonation attacks with Sysmon

Recently we posted a bunch of advisories relating to Ivanti Unified Endpoint Manager, a couple of which are for vulnerabilities which can be used to achieve local privilege escalation. We will give a brief explanation of the vulnerabilities and an example of Sysmon configuration rules to log exploitation attempts, along with the rationale behind them so you can adapt them to your existing configuration if needed.

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

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.

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Pwning Windows Event Logging with YARA rules

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...

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Defending Your Malware

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 <windows.h>...

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shad0w

Post exploitation is large part of a red team engagement. While many organisations begin to mature and start to deploy a range of sophisticated Endpoint Detection & Response solutions (EDR) onto their networks, it requires us, as attackers to also mature. We need to upgrade our arsenal to give us the capabilities to successfully operate on their networks. That is why today, I am releasing shad0w.

shad0w is a post exploitation framework which is designed to operate covertly on such networks, providing the operator with much greater control over their engagements. Over future blog posts I will go into greater detail on the intricacies of how shad0w works. This blog post will, therefore, serve as an introduction into the usage and features that shad0w has to offer.

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GitHub Activity

 

Twitter

2 weeks ago
Detecting known DLL hijacking and named pipe token impersonation attacks with Sysmon https://t.co/zaCERBG3ys #sysmon #blueteam #privesc #detection
2 weeks ago
Advisory CVE-2020-13773 – Ivanti Unified Endpoint Manager Reflected XSS https://t.co/gpqpRsoalK #ivanti #landesk #cve #xss
2 weeks ago
Advisory CVE-2020-13769 – Ivanti Unified Endpoint Manager SQL injection https://t.co/ViP2ZH2M8o #ivanti #landesk #cve #sqli
2 weeks ago
Advisory CVE-2020-13774 – Ivanti Unified Endpoint Manager authenticated RCE via file upload https://t.co/Qtux51SyMr #ivanti #landesk #rce #cve
2 weeks ago
Advisory CVE-2020-13771 – Ivanti Unified Endpoint Manager DLL search order hijacking privilege escalation https://t.co/eJK5T2K0Nd #ivanti #landesk
2 weeks ago
Advisory CVE-2020-13770 – Ivanti Unified Endpoint Manager named pipe token impersonation privilege escalation https://t.co/6rBlfB7LxP #ivanti #landesk

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The information provided on this website is to be used for educational purposes only. The author is in no way responsible for any misuse of the information provided. Any actions and or activities related to the material contained within this website is solely your responsibility.