What did I say to make you stop talking to me?, (Tue, Jan 30th)

We use Cowrie to emulate an SSH and Telnet server for our honeypots. Cowrie is great software maintained by Michel Oosterhof [1]. The honeypot is a reasonable emulation of such a server, easy to maintain, and very feature-rich for even more advanced analysis. We only use it in its simplest form for our DShield sensor.

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Exploit Flare Up Against Older Altassian Confluence Vulnerability, (Mon, Jan 29th)

Last October, Atlassian released a patch for %%cve:2023-22515%% [1]. This vulnerability allowed attackers to create new admin users in Confluence. Today, I noticed a bit a “flare up” in a specific exploit variant.

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A Batch File With Multiple Payloads, (Fri, Jan 26th)

Windows batch files (.bat) are often seen by people as very simple but they can be pretty complex or.. contain interesting encoded payloads! I found one that contains multiple payloads decoded and used by a Powershell process. The magic is behind how comments can be added to such files. The default (or very common way) is to use the “REM” keyword. But you can also use a double-colon:

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How Bad User Interfaces Make Security Tools Harmful, (Wed, Jan 24th)

User interface design is one of those often overlooked aspects in software design in general. A bad user interface can quickly become a vulnerability regarding security. Even though I do not remember actual CVE&#;x26;#;39;s assigned to bad user-interface design, there probably should be some. One of the more famous user interface design issues was the “Therac-25” radiation treatment device. A bad user interface has been blamed for contributing to some deadly accidents [1].

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