Fuzzing | Breaking Cybersecurity News | The Hacker News

Security firm runZero has disclosed seven vulnerabilities in  FatFs , a small filesystem library that lets a device read and write the FAT and exFAT formats used on USB drives and SD cards. The flaws matter because FatFs is nearly everywhere. It ships inside the firmware that runs security cameras, drones, industrial controllers, hardware crypto wallets, and other devices built on real-time operating systems. On the worst-affected systems, an attacker who gets a booby-trapped USB drive, SD card, or update file onto a device can corrupt its memory and run their own code. Many embedded devices lack the memory protections found on phones and desktops, which is why runZero says "any physical access leads to a jailbreak." A public kiosk, a camera with an SD slot, an ATM, or a voting machine with a USB port should not hand over full control after a moment of physical access, but here it can. All seven bugs work the same basic way. The device tries to read a storage vo...

A group of academics has disclosed details of over 100 security vulnerabilities impacting LTE and 5G implementations that could be exploited by an attacker to disrupt access to service and even gain a foothold into the cellular core network. The 119 vulnerabilities , assigned 97 unique CVE identifiers, span seven LTE implementations – Open5GS , Magma , OpenAirInterface , Athonet , SD-Core , NextEPC , srsRAN – and three 5G implementations – Open5GS, Magma, OpenAirInterface, according to researchers from the University of Florida and North Carolina State University. The findings have been detailed in a study titled "RANsacked: A Domain-Informed Approach for Fuzzing LTE and 5G RAN-Core Interfaces." "Every one of the >100 vulnerabilities discussed below can be used to persistently disrupt all cellular communications (phone calls, messaging and data) at a city-wide level," the researchers said. "An attacker can continuously crash the Mobility Management En...

Google has revealed that its AI-powered fuzzing tool, OSS-Fuzz, has been used to help identify 26 vulnerabilities in various open-source code repositories, including a medium-severity flaw in the OpenSSL cryptographic library. "These particular vulnerabilities represent a milestone for automated vulnerability finding: each was found with AI, using AI-generated and enhanced fuzz targets," Google's open-source security team said in a blog post shared with The Hacker News. The OpenSSL vulnerability in question is CVE-2024-9143 (CVSS score: 4.3), an out-of-bounds memory write bug that can result in an application crash or remote code execution. The issue has been addressed in OpenSSL versions 3.3.3, 3.2.4, 3.1.8, 3.0.16, 1.1.1zb, and 1.0.2zl. Google, which added the ability to leverage large language models (LLMs) to improve fuzzing coverage in OSS-Fuzz in August 2023, said the vulnerability has likely been present in the codebase for two decades and that it "wo...