A threat actor claims to offer a zero-day exploit for an unauthenticated remote code execution vulnerability in Fortinet firewalls.
Fortinet diligently balances our commitment to the security of our customers and our culture of responsible transparency and commits to sharing information with that goal in mind. While efforts by threat actors to exploit known vulnerabilities are not new, recent Fortinet investigations have discovered a post exploitation technique used by a threat actor. This blog offers analysis of that finding to help our customers make informed decisions.
Recently, Yasser Allam, known by the pseudonym inzo_, and I, decided to team up for some research. We discussed potential targets and chose to begin by focusing on Next.js (130K stars on github, currently downloaded + 9,4 million times per week), a framework I know quite well and with which I already have fond memories, as evidenced by my previous work. Therefore, the “we” throughout this paper will naturally refer to the two of us.
Next.js is a comprehensive javascript framework based on React, packed with numerous features — the perfect playground for diving into the intricacies of research. We set out, fueled by faith, curiosity, and resilience, to explore its lesser-known aspects, hunting for hidden treasures waiting to be found.
It didn’t take long before we uncovered a great discovery in the middleware. The impact is considerable, with all versions affected, and no preconditions for exploitability — as we’ll demonstrate shortly.
Exploit Attempts for Cisco Smart Licensing Utility CVE-2024-20439 and CVE-2024-20440, Author: Johannes Ullrich
Uncover the details of CVE-2025-24118, a critical vulnerability in Apple's MacOS. Understand the risks and the patched versions.
Exploit attempts for unpatched Citrix vulnerability, Author: Johannes Ullrich
This one is a privesc bug yielding SYSTEM privileges for any VDI user, which is actually a lot worse than it might initially sound since that’s SYSTEM privileges on the server that hosts all the applications and access is ‘by design’ - allowing an attacker to impersonate any user (including administrators) and monitor behaviour, connectivity.
More than 60,000 D-Link network-attached storage devices that have reached end-of-life are vulnerable to a command injection vulnerability with a publicly available exploit.
Intruders accessed machines via tool bundled with ScienceLogic, 'limited' info taken, customers told not to worry
Emails, documents, and other untrusted content can plant malicious memories.
CISA has tagged another critical Ivanti security vulnerability, which can let threat actors create rogue admin users on vulnerable Virtual Traffic Manager (vTM) appliances, as actively exploited in attacks.
people frequently reach out to me with companies to look into. usually it takes me about 10 minutes before i move on for one reason or another—it's not interesting for a story or has good security, for example. i didnt expect anything different when an acquaintance told me about Tracki, a self-proclaimed "world leader in GPS tracking" that they suspected could be used nefariously.
at first glance, Tracki appeared to be a serious company, maybe even one that cared about security. we could never have guessed what was about to unfold before us.
half a year into our investigation, we'd found it all: a hidden conglomerate posing as five independent companies, masked from governments and customers alike through the use of dozens of false identities, US letterbox companies, and an undeclared owner. a 90s phone sex scheme that, through targeting by one of hollywood's most notorious fixers, spiraled into a collection of almost a hundred domains advertising everything from online dating to sore throat remedies. a slew of device-assisted murder cases, on top of potential data breaches affecting almost 12 million users, ranging from federal government officials to literal infants. and most importantly, a little-known Snoop Dogg song. how in the world did we get here?
starting our descent
Security researchers have detailed and published a PoC exploit code for a critical vulnerability, designated as CVE-2024-38077 (CVSS 9.8)
Researchers have "reverse-engineered" HID's iCLASS SE platform and will be "revealing some cryptographic keys to the kingdom."
A new vulnerability has been discovered in macOS Sonoma that is associated with privilege escalation. This vulnerability has been assigned
The D-Link EXO AX4800 (DIR-X4860) router is vulnerable to remote unauthenticated command execution that could lead to complete device takeovers by attackers with access to the HNAP port.
Microsoft warns that the Russian APT28 threat group exploits a Windows Print Spooler vulnerability to escalate privileges and steal credentials and data using a previously unknown hacking tool called GooseEgg.
#APT28 #Computer #Credential #Escalation #Exploit #GooseEgg #InfoSec #NSA #Print #Privilege #Security #Spooler #Theft #Windows
In a previous blog post we described a process injection vulnerability affecting all AppKit-based macOS applications. This research was presented at Black Hat USA 2022, DEF CON 30 and Objective by the Sea v5. This vulnerability was actually the second universal process injection vulnerability we reported to Apple, but it was fixed earlier than the first. Because it shared some parts of the exploit chain with the first one, there were a few steps we had to skip in the earlier post and the presentations. Now that the first vulnerability has been fixed in macOS 13.0 (Ventura) and improved in macOS 14.0 (Sonoma), we can detail the first one and thereby fill in the blanks of the previous post.
This vulnerability was independently found by Adam Chester and written up here under the name “DirtyNIB”. While the exploit chain demonstrated by Adam shares a lot of similarity to ours, our attacks trigger automatically and do not require a user to click a button, making them a lot more stealthy. Therefore we decided to publish our own version of this write-up as well.
In April 2021 I participated in Pwn2Own Vancouvver competition as a single player, and successfully demonstrated a 0-day virtual machine escape exploit with code execution on Parallels hypervisor. Today I am finally releasing the exploit source code together with a technical walkthrough video talk that I gave on Zero Day Engineering livestream in November 2021.
