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Major Vulnerability in OpenSea Could Have Allowed Hackers to Steal Cryptocurrency from User Wallets

Oct 13, 2021

A recently patched critical vulnerability in OpenSea, the leading marketplace for non-fungible tokens (NFTs), had the potential to be exploited by hackers to siphon cryptocurrency from victims by sending specially-crafted tokens. This revelation comes from cybersecurity firm Check Point Research, which launched an investigation following reports of cryptocurrency theft linked to free airdropped NFTs. The issues were resolved within an hour of responsible disclosure on September 26, 2021. “If left unaddressed, these vulnerabilities could have permitted hackers to seize user accounts and drain entire cryptocurrency wallets by crafting malicious NFTs,” stated researchers from Check Point. NFTs, as unique digital assets, include items like photos, videos, and audio, traded on the blockchain, which serves as a certificate of authenticity.

New ‘Trojan Source’ Technique Allows Hackers to Conceal Vulnerabilities in Source Code

November 1, 2021

A groundbreaking class of vulnerabilities has emerged, enabling threat actors to inject misleading malware that technically adheres to coding logic while distorting its intended functionality. Known as “Trojan Source attacks,” this method exploits nuances in text-encoding standards like Unicode, allowing the arrangement of source code tokens to differ from their displayed order. This results in vulnerabilities that evade detection by human reviewers, according to researchers Nicholas Boucher and Ross Anderson from Cambridge University, who outlined the findings in a recent paper. These vulnerabilities, identified as CVE-2021-42574 and CVE-2021-42694, impact compilers across numerous widely-used programming languages, including C, C++, C#, JavaScript, Java, Rust, Go, and Python. Compilers are essential tools that convert high-level human-readable code into executable machine code.

Google Alerts on Active Exploitation of New Android Zero-Day Vulnerability

November 3, 2021

Google has released its latest monthly security updates for Android, addressing 39 vulnerabilities, including a zero-day exploit that is currently being targeted in limited attacks. Identified as CVE-2021-1048, this zero-day flaw is characterized as a use-after-free vulnerability in the kernel, which could allow local privilege escalation. Use-after-free vulnerabilities pose significant risks, enabling attackers to access or reference memory that has already been freed. This could lead to a “write-what-where” scenario, allowing arbitrary code execution and potential control over a victim’s device. “There are indications that CVE-2021-1048 may be under limited, targeted exploitation,” Google stated in its November advisory, while withholding specific technical details about the exploit, the nature of the attacks, and the identities of any potential perpetrators. The security patch also addresses two critical vulnerabilities among the other fixes.

Critical RCE Vulnerability Discovered in the Linux Kernel’s TIPC Module

November 4, 2021

Cybersecurity experts have uncovered a significant security vulnerability in the Transparent Inter-Process Communication (TIPC) module of the Linux Kernel. This flaw could potentially allow both local and remote attackers to execute arbitrary code within the kernel, giving them control over affected systems. Assigned CVE-2021-43267 and rated with a CVSS score of 9.8, this heap overflow vulnerability “can be exploited locally or remotely within a network to gain kernel privileges, enabling attackers to compromise the entire system,” according to a report by cybersecurity firm SentinelOne shared with The Hacker News. TIPC is a transport layer protocol designed for seamless communication between nodes in dynamic cluster environments, offering improved efficiency and fault tolerance compared to traditional protocols like TCP. The vulnerability arises from inadequate validation of user-provided sizes for a new message type.