security

Die Bundesregierung will die Speicherung von IP-Adressen für drei Monate gesetzlich festschreiben, um die Strafverfolgung zu verbessern. Daten­schüt­zer warnen vor Grundrechtsverletzungen und fordern Alternativen wie Quick Freeze.

Reading Location Position Value in Microsoft Word Documents Jessy investigated how Word documents store the last visited document location in the registry. https://isc.sans.edu/diary/Reading%20Location%20Position%20Value%20in%20Microsoft%20Word%20Documents/32224 Weaponizing image scaling against production AI systems AI systems often downscale images before processing them. An attacker can create a harmless looking image that would reveal text after downscaling leading to prompt […]

The end of an era: Properly formatted IP addresses in all of our data. When initiall designing DShield, addresses were zero padded , an unfortunate choice. As of this week, datafeeds should no longer be zero padded . https://isc.sans.edu/diary/The%20end%20of%20an%20era%3A%20Properly%20formated%20IP%20addresses%20in%20all%20of%20our%20data./32228 .desktop files used in an attack against Linux Desktops Pakistani attackers are using .desktop files to […]

Don’t Forget The „-n“ Command Line Switch Disabling reverse DNS lookups for IP addresses is important not just for performance, but also for opsec. Xavier is explaining some of the risks. https://isc.sans.edu/diary/Don%27t%20Forget%20The%20%22-n%22%20Command%20Line%20Switch/32220 watchTowr releases details about recent Commvault flaws Users of the Commvault enterprise backup solution must patch now after watchTowr released details about recent […]

Airtel Router Scans and Mislabeled Usernames A quick summary of some odd usernames that show up in our honeypot logs https://isc.sans.edu/diary/Airtel%20Router%20Scans%2C%20and%20Mislabeled%20usernames/32216 Apple Patches 0-Day CVE-2025-43300 Apple released an update for iOS, iPadOS and MacOS today patching a single, already exploited, vulnerability in ImageIO. https://support.apple.com/en-us/124925 Microsoft Copilot Audit Logs A user retrieving data via copilot obscures […]

Increased Elasticsearch Recognizance Scans Our honeypots noted an increase in reconnaissance scans for Elasticsearch. In particular, the endpoint /_cluster/settings is hit hard. https://isc.sans.edu/diary/Increased%20Elasticsearch%20Recognizance%20Scans/32212 Microsoft Patch Tuesday Issues Microsoft noted some issues deploying the most recent patches with WSUS. There are also issues with certain SSDs if larger files are transferred. https://learn.microsoft.com/en-us/windows/release-health/status-windows-11-24h2#3635msgdesc https://www.tomshardware.com/pc-components/ssds/latest-windows-11-security-patch-might-be-breaking-ssds-under-heavy-workloads-users-report-disappearing-drives-following-file-transfers-including-some-that-cannot-be-recovered-after-a-reboot SAP Vulnerabilities Exploited […]

Keeping an Eye on MFA Bombing Attacks Attackers will attempt to use authentication fatigue by bombing users with MFA authentication requests. Rob is talking in this diary about how to investigate these attacks in a Microsoft ecosystem. https://isc.sans.edu/diary/Keeping+an+Eye+on+MFABombing+Attacks/32208 Critical Cisco Secure Firewall Management Center Software RADIUS Remote Code Execution Vulnerability An OS command injection vulnerability […]

SNI5GECT: Sniffing and Injecting 5G Traffic Without Rogue Base Stations Researchers from the Singapore University of Technology and Design released a new framework, SNI5GECT, to passively sniff and inject traffic into 5G data streams, leading to DoS, downgrade and other attacks. https://isc.sans.edu/diary/SNI5GECT%3A%20Sniffing%20and%20Injecting%205G%20Traffic%20Without%20Rogue%20Base%20Stations/32202 Plex Vulnerability Plex patched a vulnerability in the Plex Media Server. Make sure […]

AI and Faster Attack Analysis A few use cases for LLMs to speed up analysis https://isc.sans.edu/diary/AI%20and%20Faster%20Attack%20Analysis%20%5BGuest%20Diary%5D/32198 Proxyware Malware Being Distributed on YouTube Video Download Site Popular YouTube download sites will attempt to infect users with proxyware. https://asec.ahnlab.com/en/89574/ Xerox Freeflow Core Vulnerability Horizon3.ai discovered XXE Injection (CVE-2025-8355) and Path Traversal (CVE-2025-8356) vulnerabilities in Xerox FreeFlow Core, […]

CVE-2017-Adresse geschuetztNever Die The (very) old equation editor vulnerability is still being exploited, as this recent sample analyzed by Xavier shows. The payload of the Excel file attempts to download and execute an infostealer to exfiltrate passwords via email. https://isc.sans.edu/diary/CVE-2017-11882%20Will%20Never%20Die/32196 Windows Kerberos Elevation of Privilege Vulnerability Yesterday, Microsoft released a patch for a vulnerability that […]