Telekom Security

Aug 25, 2023 Research Note

Shining some light on the DarkGate loader

Analysis and Report by Fabian Marquardt (@marqufabi)Recently, Telekom Security CTI was made aware via trust groups in which we are engaged about a new malware campaign that is distributed via phishing emails. The malspam campaign used st...

Jul 10, 2023 Security Advisory

LibreOffice Calc Formula Parsing Vulnerability

A vulnerability in LibreOffice (CVE-2023-0950) allows to trigger an array index underflow that could be exploited by an attacker to execute arbitrary code. To trigger the vulnerability, a victim only needs to open a specially crafted Spr...

Apr 24, 2023 Security Advisory

Mozilla Maintenance Service Write-lock bypass Vulnerability

A vulnerability in the Mozilla Maintenance Service (CVE-2023-29532) allows a local attacker to trick the Mozilla Maintenance Service into applying an unsigned update file by pointing the service to an update file on a malicious SMB serve...

Apr 03, 2023 Write-up

USD: One File Format, Many Vulnerabilities

This post covers my project of identifying a series of vulnerabilities (CVE-2020-9878, CVE-2020-9880, CVE-2020-9881, CVE-2020-9882, CVE-2020-9940, CVE-2020-9985) in the processing of USD (Universal Scene Description) files within Apple’s...

Jan 09, 2023 Security Advisory

Critical remote buffer overflow vulnerability in matrixssl TLSv1.3 server message processing

A new critical remote buffer overflow vulnerability (CVE-2022-43974) was discovered in the matrixssl library (versions 4.5.1- 4.0.0, https://github.com/matrixssl/matrixssl) by Security Evaluators of Telekom Security with modern fuzzing m...

Sep 12, 2022 Security Advisory

Apple's iOS & macOS Contacts Vulnerability - Privacy Preferences Bypass

A vulnerability has been identified in iOS/iPadOS < 15.7 / < 16.0 and macOS Big Sur < 11.7 that allows an app to bypass Privacy preferences, posing a significant risk. The vulnerability, classified as Improper Input Validation a...

Apr 13, 2022 Honeypot Research

T-Pot Version 22.04 released

We are proud to announce the release of T-Pot 22.04 with lots of new features i.e. new honeypots, a distributed installation option, arm64 support, live attack maps, Debian 11 base, ELK 8.x, and more. If you ever wanted to get started wi...

Jan 20, 2022 General Update

Twitter Account of Deutsche Telekom's CERT Resumed

We are very pleased to announce that Deutsche Telekom’s CERT recently has resumed their twitter activity. Make sure to follow @DTCERT for technical tweets from CERT, CTI, and DFIR.

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