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A now-patched security flaw in the Opera web browser could have enabled a malicious extension to gain unauthorized, full access to private APIs. The attack, codenamed CrossBarking , could have made it possible to conduct actions such as capturing screenshots, modifying browser settings, and account hijacking, Guardio Labs said. To demonstrate the issue, the company said it managed to publish a seemingly harmless browser extension to the Chrome Web Store that could then exploit the flaw when installed on Opera, making it an instance of a cross-browser-store attack. "This case study not only highlights the perennial clash between productivity and security but also provides a fascinating glimpse into the tactics used by modern threat actors operating just below the radar," Nati Tal, head of Guardio Labs, said in a report shared with The Hacker News. The issue has been addressed by Opera as of September 24, 2024, following responsible disclosure. That said, this is not th...

Cybersecurity researchers have uncovered an ongoing malvertising campaign that abuses Meta's advertising platform and hijacked Facebook accounts to distribute an information stealer known as SYS01stealer. "The hackers behind the campaign use trusted brands to expand their reach," Bitdefender Labs said in a report shared with The Hacker News. "The malvertising campaign leverages nearly a hundred malicious domains, utilized not only for distributing the malware but also for live command and control (C2) operations, allowing threat actors to manage the attack in real-time." SYS01stealer was first documented by Morphisec in early 2023, describing attack campaigns targeting Facebook business accounts using Google ads and fake Facebook profiles that promote games, adult content, and cracked software. Like other stealer malware, the end goal is to steal login credentials, browsing history, and cookies. But it's also focused on obtaining Facebook ad and busin...

Cybersecurity researchers have discovered a new malicious Python package that masquerades as a cryptocurrency trading tool but harbors functionality designed to steal sensitive data and drain assets from victims' crypto wallets. The package, named "CryptoAITools," is said to have been distributed via both Python Package Index (PyPI) and bogus GitHub repositories. It was downloaded over 1,300 times before being taken down from PyPI. "The malware activated automatically upon installation, targeting both Windows and macOS operating systems," Checkmarx said in a new report shared with The Hacker News. "A deceptive graphical user interface (GUI) was used to distract vic4ms while the malware performed its malicious ac4vi4es in the background." The package is designed to unleash its malicious behavior immediately after installation through code injected into its "__init__.py" file that first determines if the target system is Windows or macOS ...

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A little over three dozen security vulnerabilities have been disclosed in various open-source artificial intelligence (AI) and machine learning (ML) models, some of which could lead to remote code execution and information theft. The flaws, identified in tools like ChuanhuChatGPT, Lunary, and LocalAI, have been reported as part of Protect AI's Huntr bug bounty platform. The most severe of the flaws are two shortcomings impacting Lunary, a production toolkit for large language models (LLMs) - CVE-2024-7474 (CVSS score: 9.1) - An Insecure Direct Object Reference (IDOR) vulnerability that could allow an authenticated user to view or delete external users, resulting in unauthorized data access and potential data loss CVE-2024-7475 (CVSS score: 9.1) - An improper access control vulnerability that allows an attacker to update the SAML configuration, thereby making it possible to log in as an unauthorized user and access sensitive information Also discovered in Lunary is anot...