Recent Blog Posts
Whose CVE Is It Anyway?
The latest vulnerability causing headaches across the world is CVE-2023-4863, issued by Google Chrome and described as “Heap buffer overflow in WebP in Google Chrome prior to 116.0.5845.187 allowed a remote attacker to perform an out of bounds memory write via a crafted HTML page”. This same CVE is cited by a number of other vendors as they are impacted as well. But, is this really a Google Chrome vulnerability?
Read more…AI: Art Without Expression?
Generative AI1 is changing the world, and is doing so faster than most of us could realise. While I don’t share the fear that it’ll destroy humanity (something we’re doing quite well at, without help), I do see that it’s having an impact on how we work, how we interact, and will have a growing impact on what jobs survive into the next generation. Just as switchboard operators, pin setters, and lift operators are all essentially extinct today, advances in technology will steadily eliminate some jobs, while creating new ones.
Read more…Twitter Becomes a Walled Garden
Today is a red letter day in the history of Twitter, though not in a good way. Twitter has a long reputation of free speech, providing a platform for all that wanted it, easily connecting to the powerful, building communities, and organising against tyranny. This didn’t come without controversy of course; in the effort to keep the platform safe, more and more moderation was implemented - sometimes the got it right, sometimes they got it wrong.
Read more…On Art, Heritage, Nazis, & 3D Scanners
or: How an 18th century painter saved Warsaw from the Nazis, and how 3D scanners may save Ukraine While researching applications that use the iPhone’s LiDAR scanner or perform more pure photogrammetry, I came across an effort by Polycam - likely the largest player in this space - to help protect the heritage of Ukraine and its people: Backup Ukraine. This is an effort to recruit people in Ukraine to leverage Polycam (provided a no cost as part of this program), to create detailed scans of artwork, buildings, and other items of cultural significance.
Read more…Logseq: My External Brain
Over the years I’ve used most of the major note taking tools around, I’ve been a paying customer of Evernote for over a decade, I’ve used Standard Notes, Good Notes, pen & paper, and a bunch of others I can’t recall now. They were never quite right for my needs — some were close, but none were what I was after. One of the major challenges was that I didn’t know what I needed, and it’s hard to find something when you don’t know what you’re looking for.
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Recent Security Research
Exploiting the Jackson RCE: CVE-2017-7525
Earlier this year, a vulnerability was discovered in the Jackson data-binding library, a library for Java that allows developers to easily serialize Java objects to JSON and vice versa, that allowed an attacker to exploit deserialization to achieve Remote Code Execution on the server. This vulnerability didn’t seem to get much attention, and even less documentation. Given that this is an easily exploited Remote Code Execution vulnerability with little documentation, I’m sharing my notes on it.
Read more…Breaking the NemucodAES Ransomware
The Nemucod ransomware has been around, in various incarnations, for some time. Recently a new variant started spreading via email claiming to be from UPS. This new version changed how files are encrypted, clearly in an attempt to fix its prior issue of being able to decrypt files without paying the ransom, and as this is a new version, no decryptor was available1. My friends at Savage Security contacted me to help save the data of one of their clients; I immediately began studying the cryptography related portions of the software, while the Savage Security team was busy looking at other portions.
Read more…PL/SQL Developer: HTTP to Command Execution
While looking into PL/SQL Developer – a very popular tool for working with Oracle databases, to see how it encrypts passwords I noticed something interesting. When testing Windows applications, I make it a habit to have Fiddler running, to see if there is any interesting traffic – and in this case, there certainly was. PL/SQL Developer has an update mechanism which retrieves a file containing information about available updates to PL/SQL Developer and other components; this file is retrieved via HTTP, meaning that an attacker in a privileged network position could modify this file.
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Insane Ideas
The Insane Ideas series is a group of blog posts the detail various ideas that I found interesting, but didn't pursue due to time restrictions or other factors. The goal of publishing these ideas is to make the concept available to others, in hopes that they will pursue the idea - or at least find amusement in it.
Insane Ideas: NFT the Stars
This is part of the Insane Ideas series. A group of blog posts that detail ideas, possible projects, or concepts that may be of interest. These are ideas that I don’t plan to pursue, and are thus available to any and all that would like to do something with them. I hope you find some inspiration – or at least some amusement in this. NFTs are drawing in vast amounts of money; the cryptocurrency community couldn’t be more excited unless Elon sold himself as an NFT.
Read more…Insane Ideas: Stock in People
This is part of the Insane Ideas series. A group of blog posts that detail ideas, possible projects, or concepts that may be of interest. These are ideas that I don’t plan to pursue, and are thus available to any and all that would like to do something with them. I hope you find some inspiration – or at least some amusement in this. There are many ways to invest in a variety of things, though there is one hugely promising front that has barely begun to emerge, that could have massive potential for profit, and incredible ramifications: the ability to invest in individuals.
Read more…Insane Ideas: Blockchain-Based Automated Investment System
This is part of the Insane Ideas series. A group of blog posts that detail ideas, possible projects, or concepts that may be of interest. These are ideas that I don’t plan to pursue, and are thus available to any and all that would like to do something with them. I hope you find some inspiration – or at least some amusement in this. A few months ago I was reading about high-frequency trading (HFT) – algorithms that allow investors to make money essentially out of nothing by executing trades at high speed, and leveraging the natural (and artificial) volatility of the market.
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Fine Art Photography
About my Photography. | Buy Limited Edition Prints | My Portfolio | My Photo Blog
Projects
- YAWAST - The YAWAST Antecedent Web Application Security Toolkit.
- libsodium-net - The .NET library for libsodium; a modern and easy-to-use crypto library.
- ccsrch - Cross-platform credit card (PAN) search tool for security assessments.
- Underhanded Crypto Contest - A competition to write or modify crypto code that appears to be secure, but actually does something evil.
About Adam Caudill
Adam Caudill is a security leader with over 20 years of experience in security and software development; with a focus on application security, secure communications, and cryptography. Active blogger, open source contributor, writer, photographer, and advocate for user privacy and protection. His work has been cited by many media outlets and publications around the world, from CNN to Wired and countless others.
