Just saw a new (to me) URL in our honeypot data today:

Our honeypots use "Cowrie" to collect SSH data. With the emergence of the "sshole" vulnerability last week, we are now seeing an increase in attempts to exploit the vulnerability. Our data is a bit limited in this respect. Our honeypots collect only the first 255 characters of SSH passwords. Longer passwords are highly unusual and not used for the usual password brute-forcing we observe.

This morning, I was browsing our honeypot data for any new and existing PHP exploit attempts. Instead, I first ran into some GeoServer exploits, but found them to be too boring to write up. This Cisco IOS exploit attempt was a bit more interesting. Still nothing new. I suspect this is for CVE-2023-20198.

One of the early web application vulnerabilities I remember was CVE-2000-0411 [CVE]. This was a simple vulnerability in a CGI-bin script used to send e-mail. The vulnerability was pretty straightforward: Adding additional parameters to the URL leaked environment variables. Other vulnerabilities allowed setting the "To" address and were heavily abused by spammers. And if parameters were passed directly to the sendmail binary, similar vulnerabilities could allow arbitrary code execution.

Last week, an often-ignored TCP option, introduced in 2020, made the news due to a new vulnerability in Linux's implementation (RFC 8684,  CVE-2026-98432)

Recently, I had to extract embedded files from a set of OneNote files (extension .one).

Wireshark Release Candidate 5.0.0 was published: soon we can expect a new major version of Wireshark.

YARA-X's 1.22.1 is a bugfix version, it brings 2 bugfixes.

Building your malware analysis lab is a key point before playing with malware. Today, thanks to virtualization, it's convenient to play with snapshots in your lab. Start a new investigation from a clean snapshot and take some more when you reached a critical step. But, if you need to revert to a previous snapshot, all changes applied to the VM are... lost! Therefore, it's important to store important data outside the VM.

Introduction