CVE-2022-26809 – Critical Windows RPC Vulnerability

Vulnerability Information

Rating	Critical
CVE	cve-2022-26809
MITRE	CVE – CVE-2022-26809 (mitre.org)
CVSS	CVSS:3.1 9.8
Impact	Remote Code Execution (RCE)
Exploit in the wild	Currently not observed
Difficulty to Exploit (if PoC available)	Very Low
Network Position	TCP/IP Routable or Network Adjacent
Authentication Required to Exploit	No
Affected	Windows Client/Server OS
Typical Service Ports	TCP 135,139,445
Vendor Patch Available	Yes
Exploitable in Default OOB (out of the box) configuration	Unknown
Exploitable Client/Server	Believed to be client and server side exploitable

Guides

CISO – Getting Started Tool

Ok so this isn’t just for CISO’s but it’s a tool to help organisations think more holistically about cyber security and some of the foundational elements required to align cyber security capabilities with the business.

Architecture

The difference between what can be vs what often…

I’ve travelled all over the internet, I’ve worked with logs of organisations from banks through to small ISVs and one thing I would say is fairly universally true. What can be isn’t what is.

There’s a lot of different operating models and technologies in the world. There’s logs of differen’t specifics. This diagram here is not mean’t as a refrence architecture but more as an indicator.

There is also a massive reality people must understand, cyber good most definatley costs more at the point of deployment than cyber bad. Cyber bad’s ROI is truly variable and in mind mind is too hard to measure. For one org with cyber bad can experiance a significant breach (and cost) and another may have lady luck on their side.

Defense

Log4Shell exploitation and hunting on VMware Horizon (CVE-2021-44228)

TLDR

Go and run this on the connection servers:

https://github.com/mr-r3b00t/CVE-2021-44228

It’s crude so also look for the modified timestamps, recent unexpected blast service restarts and if you have process logging go and check for suspicious child processes over the period. Once you have checked, run a backup, then if they aren’t patched, patch the servers! (i know patching isn’t as simple as just patch!)

Defense

Post Business Email Compromise actions for Office 365 Users

If you have a business email compromise incident and you haven’t deteced it in a timely manner your fist notification might be a bad experiance, the threat actors may have commited fraud, attemped fraud or simply launched a phishing If you have a business email compromise incident and you haven’t detected it in a timely manner your fist notification might be a bad experience, the threat actors may have committed fraud, attempted fraud, or simply launched a phishing campaign from your environment. If you are in this position, there are some steps you can take from a technical point of view to limit impact and reduce risk of a re-occurrence. This blog is a high-level view at some of the tactical and longer-term activities you can conduct.

Defense

I’m the CEO why do I care about phishing…

Introduction

This is part of a series I’m writing which is focusing on some of the core fundamentals of why cyber security is a business issue, why business leadership should care and invest in a good security posture and I’m looking at common security threats and ways you can combat these. Read more “I’m the CEO why do I care about phishing threats?” →

Leadership

The Security Challenges of 2021

The gaps between strategic security improvement and keeping the wolves out, today!

The Cyber Realities in 2021

Most organisations today honestly don’t have great cyber security postures. Cyber security has improved since the 80’s and 90s’s but still common gaps can be found in the same old areas.

So, whilst security possibilities and technical capabilities for defence have greatly improved, this hasn’t really translated into the level of change we would like to see on the ground inside organisations.

I’m writing this post after giving a talk today about the challenges I see in cyber security across different organisations but also after watching a talk by Dave Kennedy which from my perspective emulates my experiences and largely my views. Read more “The Security Challenges of 2021” →

Defense

Phishing your own people – path to eroding trust…

Introduction

“Security education and awareness darling, it’s all the rage! It’s simply to hot right now.” Ok stop, let’s take a minute to get some context. It’s the year 2021, organisations are taking a battering round the globe from cyber criminals who are deploying ransomware, extortion, and fraud via a range of methods but one you can’t not have heard of is phishing.

In this post today, I’m going to look at realities of initial access, phishing and some questions I think people should be asking themselves about the idea of phishing their own userbase. I try and look at this from multiple perspectives because I think it’s a complex subject. Let’s start with initial access methods!

Common Patterns of Access

If we look at the world of technology and cyber security, you will see logs of references to frameworks and language that is enough to send even the committed to sleep! However, let’s abstract from our TTPs, our MITRE ATT&CK frameworks and our “threat actors” and let’s talk in normal English. Read more “Phishing your own people – path to eroding trust or a useful tool?” →

Defense

Apache Access Logs Rotation

By default, at least on Ubuntu apache2 is set to rotate logs every 14 days.

It will rotate logs held here: /var/log/apache2/*.log

Using the rotate configuration, you can specify a value: Read more “Apache Access Logs Rotation” →

Defense

HID Attacks using OMG Cables

Human Interface Devices is the science way of saying (in this case) keyboard! Now that doesn’t sound amazing but then we look at the details. What we are talking about here is a wireless remote controlled programable keyboard emulator disguised as a USB cable or a cable between a real USB keyboard (must be detachable). This provides attack opportunities to both key log and hijack inputs to PC devices covertly and remotely (within WIFI range). Just imagine what you could do with one of these.