CVE-2023-27997 – FortiOS & FortiProxy – Heap buffer overflow in sslvpn pre-authentication

Please note the vulnerabilities in Fortinet products published in June. In particular, we would like to mention the vulnerability in FortiOS, which affects SSLVPN access and poses a major threat with a CVSSv3 score of 9.2. Fortinet PSIRT: https://www.fortiguard.com/psirt/FG-IR-23-097CVE: https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-27997 Affected are FortiOS versions 6.0 to 7.2. Fortinet has already…

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New Fortinet Vulnerabilities (March 2023)

Most of you have already read about the latest release of Fortinet’s new PSIRT advisories. There are 15 new vulnerabilities for FortiOS and other products with severity level from low up to critical. We strongly recommend that you checkt the PSIRT advisories and update your Fortinet products to one of…

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CVE-2022-40684 – Fortinet: Authentication bypass on administrative interface (HTTP/HTTPS) (Deutsch)

Englische Version: CVE-2022-40684 – Fortinet Authentication bypass on administrative interface (HTTP/HTTPS) (English) Sie haben sicherlich (und hoffentlich) die Informationen über die veröffentlichte Fortigate-Schwachstelle beim Zugriff auf die Administration gelesen und die entsprechenden Patches installiert. Wir haben alle Informationen hier noch einmal für Sie zusammengestellt.

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WatchGuard Launches PSIRT Page

WatchGuard’s Product Security Incident Response Team (PSIRT) has launched their public PSIRT page to provide a consolidated resource where network administrators can find advisories and information about security vulnerabilities in WatchGuard products, as well as WatchGuard’s investigations into industry-wide security issues that may impact WatchGuard products or services. The published…

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FragAttack: Security Flaws in all Wi-Fi devices

In the last few days, more and more articles about vulnerabilities in the Wifi area have appeared. These FragAttacks (fragmentation and aggregation attacks) which is a collection of new security vulnerabilities affects Wi-Fi devices from different vendors. heise.de: FragAttacks: Neue Angriffe gefährden nahezu alle WLAN-Geräte (German article) There is a…

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Exchange Pwn2Own Vulnerability April 2021 (Yes, a new one – it’s not Hafnium anymore!)

Let’s mention the important things first: Please patch you vulnerable Exchange 2013, 2016 and 2019 immediately! The page msxfaq has published an infosite to this vulnerability including the instructions how to fix your Exchange. Some security researchers have demonstrated three high risk vulnerabilities for exchange server systems. Microsoft has published…

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FortiGate SSLVPN Update-Empfehlung

Update, Nov 2020: More than a year after Fortinet described this SSLVPN vulnerability, it gets new attention. A few days ago a list of IPs and domain names of vulnerable Fortigates was published. This list is dated November 2019 and one can only hope that many of these systems have…

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