Using a carefully crafted calendar event, an attacker can retrieve semi-arbitrary files from a target victim’s macOS system, all the victim has to do is click on an invite.
Introduction Recently we came across a class of vulnerability that was discovered some time ago yet is not very well known, despite the potential impact of its discovery and exploitation being critical. During the (re)discovery of this type of bug we managed to get a privileged shell on a Linux-based appliance that only presented a … Continue reading Shell Arithmetic Expansion and Evaluation Abuse
When ordering a product or service online, it’s fairly common to get a confirmation email from the provider, often with a link where you can view details of your order. This is all very helpful, but have you ever considered whether the link you can follow is secure, or if it might be vulnerable to … Continue reading Order Details Screens and PII
By Phillip Langlois and Edward Torkington Introduction In November 2019, we published a blog post covering an elevation-of-privilege vulnerability we found in Windows whilst conducting research into Windows Component Object Model (COM) services. During the course of this research, we discovered a number of vulnerabilities in several COM services that we reported to Microsoft. In … Continue reading CVE-2019-1381 and CVE-2020-0859 – How Misleading Documentation Led to a Broken Patch for a Windows Arbitrary File Disclosure Vulnerability
By Aleksandar Kircanski and Terence Tarvis A good amount of effort has been dedicated to surveying and systematizing Ethereum smart contract security bug classes. There is, however, a gap in literature when it comes to surveying implementation-level security bugs that commonly occur in basic PoW blockchain node implementations, discovered during the first decade of Bitcoin’s … Continue reading Whitepaper – Coinbugs: Enumerating Common Blockchain Implementation-Level Vulnerabilities
Written by Cedric Halbronn On Saturday 15th February, I gave a talk titled "How CVE-2018-8611 Can be Exploited to Achieve Privilege Escalation on Windows 10 1809 (RS5) and Earlier". This research was done by Aaron Adams and myself and was presented by Aaron at POC2019 at the end of last year. The OffensiveCon slides are … Continue reading CVE-2018-8611 – Diving into the Windows Kernel Transaction Manager (KTM) for fun and exploitation
Vendor: playSMS Vendor URL: https://playsms.org/ Versions affected: Before 1.4.3 Systems Affected: All Author: Lucas Rosevear Advisory URL / CVE Identifier: CVE-2020-8644 Risk: Critical Summary: PlaySMS is an open source SMS gateway, which has a web management portal written in PHP. PlaySMS supports a custom PHP templating system, called tpl (https://github.com/antonraharja/tpl). PlaySMS double processes a server-side … Continue reading Technical Advisory – playSMS Pre-Authentication Remote Code Execution (CVE-2020-8644)
Several months ago, I was having a poke at the Mozilla WebThings IoT gateway. The gateway essentially allows a user to host their own IoT cloud from a device (such as a Raspberry Pi) on their local network. It creates a tunnel to a personal subdomain of mozilla-iot.org for managing a user’s devices from the … Continue reading Interfaces.d to RCE