Introduction If you’re running a big enough network, chances are you have a monitoring server tucked away somewhere, silently watching and waiting to let you know if something goes wrong. This same quiet IT warrior is also a juicy target for attackers because it both houses a large amount of data about your network and also serves […]
Escalating XSS to Sainthood with Nagios Read More »
Introduction This blog post details a vulnerability, the exploitation of which results in Remote Code Execution (RCE) as root, that impacts many modern Netgear Small Offices/Home Offices (SOHO) devices. The vulnerability isn’t your typical router vulnerability, in that the source of the vulnerability is located within a third-party component included in the firmware of many
Mama Always Told Me Not to Trust Strangers without Certificates Read More »
(This is part 2 of a three part series. To view part 1, click here) Network Configuration This part in the three-part “Geeking Out on IBM i” series focused on network configuration. This series is an effort to make IBM i (AS/400) lingo and concepts easily accessible to the hacker community, hoping to reduce the barrier
Geeking Out on IBM i – Part 2 Read More »
I remember the first time I tried to work on Linux. Having spent most of my computer-time on DOS, Windows, and OS/2, many things on Linux were foreign to me. I had unix access in college and had to develop programs in C using VI and GCC, but it was often the little things like
Geeking Out On IBM i – Part 1 Read More »
Introduction When enterprise software gets old, should we consider it tried-and-true, or decrepit and a threat, like the superglue holding the soles of my running shoes together? Old software that’s been humming around in the background hasn’t necessarily broken, but that doesn’t mean that you can necessarily trust it; in fact there should be a
Old dog, same tricks Read More »
Modern business often relies heavily on the Internet and software resources such as Zoom or Skype to support daily operations. Use of such systems often requires additional hardware resources like microphones and cameras. Advances in computing has provided a pathway for these very ordinary hardware commodities to develop into resources that enrich user experience through
The walls have ears Read More »
Pulse Connect Secure vulnerability CVE-2021-22893 and other old vulnerabilities are being actively exploited. While GRIMM engineers were not able to obtain a device or the firmware for a full analysis, the device in question looks like a Linux-based rack-mounted server that sits inside the firewall and mediates all kinds of access for clients accessing it via a
Pulse Secure April Attack Read More »
Introduction Cleaning your domain clock Sometimes we grow to like the old software we’ve become familiar with over the years, but because as users we only see the facade of an interface and functionality, we don’t know what risks may exist in something as simple as a clock. The bar is high for enterprise software:
Time for an upgrade Read More »
GRIMM is pleased to announce the launch of their new Private Vulnerability Disclosure (PVD) program. This offering allows defenders to get ahead of the attack curve, instead of reacting to unknown threats, by providing previously unknown vulnerabilities. Subscribers will have access to a stream of high-impact vulnerabilities from GRIMM’s internal research team. Release timing will
GET AHEAD OF THE UNKNOWN Read More »
Introduction Dusting off a few new (old) vulns Have you ever been casually perusing the source code of the Linux kernel and thought to yourself “Wait a minute, that can’t be right”? That’s the position we found ourselves in when we found three bugs in a forgotten corner of the mainline Linux kernel that turned
New Old Bugs in the Linux Kernel Read More »