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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Bypassing Antivirus with Golang – Gopher it!

In this blog post, we’re going to detail a cool little trick we came across on how to bypass most antivirus products to get a Metepreter reverse shell on a target host. This all started when we came across a Github repository written in Golang, which on execution could inject shellcode into running processes. By simply generating a payload with msfvenom we tested it and found that it was easily...

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Enhanced logging to detect common attacks on Active Directory– Part 1

In this blog post I am going to tackle the topic of detecting common attacks using Active Directory logs. It is important to understand the power of data in InfoSec world. Too much data means you’ll be spending rest of the week digging through millions of log entries to try and figure out what the adversary was up to. You can set filters to help you through this, however it can get...

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Short introduction to Network Forensics and Indicators of Compromise (IoC)

“Indicator of compromise (IOC) in computer forensics is an artifact observed on a network or in an operating system that with high confidence indicates a computer intrusion. Typical IOCs are virus signatures and IP addresses, MD5 hashes of malware files or URLs or domain names of botnet command and control servers. After IOCs have been identified in a process of incident response and computer...

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CVE 2015-7547 glibc getaddrinfo() DNS Vulnerability

Hello w0rld! JUMPSEC researchers have spent some time on the glibc DNS vulnerability indexed as CVE 2015-7547 (It hasn’t got a cool name like GHOST unfortunately…). It appears to be a highly critical vulnerability and covers a large number of systems. It allows remote code execution by a stack-based overflow in the client side DNS resolver. In this post we would like to present our analysis....

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Research and Development

Hello w0rld. On this post we would like to let you know our areas of research and the research projects that we are working on currently. For 2016 we are planning to develop tools that will be used in our tests. Our areas of interest can be highlighted as: AntiVirus Detection and Evasion techniques (sandbox detection, etc) Packers, anti-debugging, anti-disassembly and binary obfuscation Network...

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Covert channels – (Mis)Using ICMP protocol for file transfers with scapy

Hello w0rld. In this post I will show how it is possible to (mis)use ICMP protocol for file transfers with scapy. “In computer security, a covert channel is a type of computer security attack that creates a capability to transfer information objects between processes that are not supposed to be allowed to communicate by the computer security policy.” Source: Wikipedia I have to give credit to...

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Microsoft Onenote Image Caching Bug (Confidential Information Leakage)

Bug Summary A security bug in the Microsoft Onenote allows images placed in user-created password-protected sections to be cached persistently in the user profile temporary directory folder: C:\Users\%username%\AppData\Local\Temp.  Analysing the content the temporary folder will reveal images that should be securely protected by Onenote.   Bug Scope This has only been tested with Microsoft...

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GitHub Activity

 

Twitter

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