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.

PowerShell Jobs

JUMPSEC investigators recently observed an adversary weaponising PowerShell Jobs to schedule their attack whilst responding to an incident. We discuss what PowerShell Jobs are, how they can be leveraged for malicious purposes, and how defenders can protect, detect, and respond to neutralise the threat.

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Running Once, Running Twice, Pwned! Windows Registry Run Keys

Running Once, Running Twice, Pwned! Windows Registry Run Keys

The Windows registry is a vast and complex topic and cannot be understood and defended in one article. One particular area of interest from a security perspective is registry run keys. In this article, we discuss who uses them, how to uncover abuse, and how to eradicate evil from them.

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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-2020-13773 – Ivanti Unified Endpoint Manager Reflected XSS

Software: Ivanti Endpoint ManagerAffected Versions: <= 2020.1.1Vendor page: www.ivanti.comCVE Reference: CVE-2020-13773Published: 13/11/2020CVSS 3.1 Score: 5.5 - AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:LAttack Vector: Remote, authenticatedCredits: Andrei Constantin Scutariu, Lenk Ratchakrit, Calvin Yau Summary Various web pages on Ivanti Unified Endpoint Manager web management console lack proper...

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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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GitHub Activity

 

Twitter

How can you investigate an incident if the logs have been deleted by an attacker?! 🙉😟

In our latest article, Dray ( @Purp1eW0lf) offers some digital forensics techniques you can use when the Windows event logs have been wiped! 🕵️‍♂️🕵️‍♀️

https://t.co/g4z12irzQB
What's your controversial cyber security opinion? #infosec #cybersecurity

Disclaimer

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.