Building, Misc
by Matthias Hamann

BMBF UNCOVER – Monitoring von Sicherheitsvorfällen in Fahrzeugen

English Abstract

For the realization and introduction of autonomous vehicles, the safe interaction of functions, systems and services as well as their monitoring over the entire product life cycle is essential. An exclusive security-by-design approach is no longer sufficient and must be continuously supported by feedback obtained from in-the-wild operation. This is where the recently successfully completed joint project BMBF UNCOVER comes into play, which targets the requirements of the standards ISO/SAE 21434 (Road vehicles – Cybersecurity engineering) and ISO 21448 (Road vehicles – Safety of the intended functionality (SOTIF)).

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Breaking
by Daniel Schlecht

Security Advisory: Achieving PHP Code Execution in ILIAS eLearning LMS before v7.30/v8.11/v9.1

During my Bachelor’s thesis, I identified several XSS vulnerabilities and a PHP Code Execution vulnerability via an insecure file upload in the learning management system (LMS) ILIAS. The XSS vulnerability can be chained with the code execution vulnerability so that attackers with tutor privileges in at least one course can perform this exploit chain.

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Misc
by Tillmann Oßwald

Linux Character Devices: Exploring systemd-run and pkexec

In this blog post, we quickly look into issues involving character devices. As is typical for Linux, everything is a file, so character devices are referenced as files, such as pseudo terminals (pts) under /dev/pts/. man pty briefly introduces the topic. Essentially, it is used to connect a program, such as a terminal emulator, to a shell. In the end, a pty can read and write like a regular file. A colleague already brought up the topic of ptys and character devices. But more recently a Twitter post and the accompanying advisory piqued my interest.

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Breaking
by Florian Port

Vulnerability in Jitsi Meet: Meeting Password Disclosure affecting Meetings with Lobbies

During a customer project, we identified a logic flaw in Jitsi Meet, an open-source video conferencing and messaging platform for secure video conferencing, voice calls, and messaging. The vulnerability affects password protected Jitsi meetings that make use of a lobby. This logic flaw leads to the disclosure of the meeting password when a user is invited to the call after waiting in the lobby.

Jitsi offers two security options to meeting moderators. Firstly, the meeting can be assigned a password that must be entered when joining. Secondly, a lobby mode can be activated, which first adds joining users to a lobby, from where they can then be added to the meeting by a user with moderation permissions.

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Breaking
by Florian Bausch

Breaking GLS Parcel Tracking

Recently, we held a talk at the Winterkongress1 of the Digitale Gesellschaft Schweiz in Winterthur, Switzerland, about our research project on breaking German parcel tracking sites. We could not name all the parcel services for which we identified vulnerabilities respecting disclosure timelines. Today, we describe our findings at GLS, another player in the German parcel market, and the disclosure process of corresponding vulnerabilities.

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Misc
by Tillmann Oßwald

BSI Publishes Windows 10 SiSyPHuS Reports: Application Compatibility Infrastructure, Microsoft Defender Antivirus ETW Usage and Device Setup Manager Service

The German Federal Office for Information Security (BSI – Bundesamt für Sicherheit in der Informationstechnik) has published several papers ERNW created as part of the long-term SiSyPHuS Win10-Project. This project focuses on system analysis of selected parts of the Windows 10 operating system performed by ERNW.

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Breaking
by Florian Bausch

I know what you ordered last summer @ Winterkongress 2024

Dennis and I already published blog posts about our research project dealing with vulnerabilities in parcel tracking implementations at DHL and DPD. At the Winterkongress (winter congress) in Winterthur, Switzerland, we had the great opportunity to give a talk about the matter. The talk was recorded and can be watched here.

DigiGes held the Winterkongress, which took place in Winterthur on 01.03. till 02.03.2024. The main topics are ethics, threats, and opportunities of IT. This year, many talks looked at AI in some way. Continue reading “I know what you ordered last summer @ Winterkongress 2024”

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Misc
by Florian Grunow

Considerations on AI-Security – Part I: Introduction and Nondeterminism

Hey there!

This is the first blog post in a series about issues we think are currently relevant in the field of AI-Security. The intention is not to get full coverage of the topic, but to point out things that seem practical and relevant. We will base some of our statements on lab setups and real-life examples. The technology that we will focus on is chat bots based on generative AI, mainly OpenAI’s ChatGPT. Right now, this specific application of AI in the wild seems to be the best way to demonstrate issues and pitfalls when it comes to IT security.

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