Google fixes third exploited Chrome zero-day in a week (CVE-2024-4947)
Vulnerabilities mentionedAll →
| CVE | Vulnerability | CVSS | EPSS | Flags | Affected | Exposure | Published |
|---|---|---|---|---|---|---|---|
| CVE-2024-4947 | V8 Type Confusion in Google Chrome Actively Exploited by Lazarus Group CVE-2024-4947 is a type-confusion flaw (CWE-843) in the V8 JavaScript engine of Google Chrome, rated High by Chromium with a CVSS 3.1 score of 9.6. An attacker triggers it by luring a user to a crafted HTML page, causing V8 to misinterpret object types and enabling execution of arbitrary code inside the Chrome sandbox. Exploitation of the V8 bug alone keeps the attacker sandboxed, but it is a typical first stage of a browser exploit chain and can be paired with sandbox-escape techniques for broader system access. All Google Chrome installations prior to 125.0.6422.60 are affected, as are Fedora's packaged builds of Chrome/Chromium carrying the vulnerable V8 code. The vulnerability was added to CISA's KEV on 2024-05-20, has a public PoC referenced in Google's issue tracker, and public reporting ties its in-the-wild use to the North Korean Lazarus Group, which deployed the FudModule rootkit against infected Chrome users. Do: Upgrade Google Chrome to 125.0.6422.60 or later on all endpoints, and install the updated chromium packages published for Fedora, prioritizing this patch because the flaw is CISA KEV-listed with a mandatory mitigation deadline. Because Lazarus Group is exploiting this in the wild via crafted web pages, review endpoint telemetry for suspicious browser-borne activity and warn users against opening links from untrusted or decoy game/job-lure sites. | 9.6 | 15% | KEV PoC |
| masson the order of billions of Chrome installations (Chrome is the world's dominant desktop browser with roughly 65% market share and a multi-billion active… |
Full article265 words · extracted from helpnetsecurity.com · click to collapse
For the third time in the last seven days, Google has fixed a Chrome zero-day vulnerability (CVE-2024-4947) for which an exploit exists in the wild.
About CVE-2024-4947
CVE-2024-4947 is a type confusion vulnerability in V8, Chrome’s JavaScript and WebAssembly engine.
And while the two Chrome zero days fixed in the past few days have been attributed to an anonymous researcher, this time around the reporters are known: Kaspersky threat researchers Vasiliy Berdnikov and Boris Larin.
Google does not usually share details fixed vulnerabilities, and even refrains from saying whether the existing exploit for them is being leveraged or not. Still, Berdnikov and Larin being researchers with Kaspersky’s Global Research & Analysis Team, chances are good that they spotted the vulnerability being actively exploited.
CVE-2024-4947 has been fixed in Chrome 125.0.6422.60/.61 (for Windows and Mac) and 125.0.6422.60 (for Linux), along with three additional vulnerabilities.
“Successful exploitation of most severe of these vulnerabilities could allow for arbitrary code execution in the context of the logged on user. Depending on the privileges associated with the user an attacker could then install programs; view, change, or delete data; or create new accounts with full user rights,” CIS commented.
“Users whose accounts are configured to have fewer user rights on the system could be less impacted than those who operate with administrative user rights.”
Microsoft, Brave and Opera are working on implementing the fix to their Chromium-based browsers, while the latest Vivaldi desktop version available already has it.
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Text extracted automatically; images, tables and formatting may be missing. Original: https://www.helpnetsecurity.com/2024/05/16/cve-2024-4947/