U.S. CISA adds Google Chromium V8 bug to its Known Exploited Vulnerabilities catalog

CVE-2024-38856 is an incorrect authorization flaw (CWE-863) in Apache OFBiz, an open-source ERP and e-commerce platform, affecting all versions through 18.12.14. On deployments where screen definitions do not explicitly verify a user's permissions because they rely on the configuration of the endpoints serving them, unauthenticated endpoints can be made to execute the screens' rendering code. As coverage of the fix describes, this can be leveraged for unauthenticated (pre-auth) remote code execution on the OFBiz server, consistent with the critical 9.8 CVSS score. Any organization running Apache OFBiz 18.12.14 or earlier, especially with the OFBiz web interface exposed to the internet, is affected. Exploitation is confirmed in the wild: CISA added the flaw to the Known Exploited Vulnerabilities catalog on 2024-08-27 amid active exploitation reports, and EPSS estimates a 99.4% probability of exploitation within 30 days.

Do: Upgrade all Apache OFBiz servers to version 18.12.15 or later immediately; the KEV listing requires applying vendor mitigations or discontinuing use within the required deadline, and newer OFBiz releases also address additional 2024 flaws (e.g., CVE-2024-45195), so updating to the latest available version is prudent. Inventory internet-facing OFBiz deployments and restrict unauthenticated access to OFBiz web endpoints where possible. Hunt for signs of exploitation (unexpected screen/view rendering requests to unauthenticated endpoints and follow-on activity on OFBiz hosts), since the flaw is being actively exploited.

Google Chromium's V8 JavaScript engine contains a type confusion flaw (CWE-843) that lets a remote attacker trigger heap corruption through a specially crafted HTML page. The attack is triggered simply by a user loading an attacker-controlled web page, with no other interaction required. Successful exploitation of heap corruption in a browser JavaScript engine typically gives the attacker code execution within the browser process, a common first step toward broader system compromise. All users of Chromium-based browsers are affected, including Google Chrome, Microsoft Edge, Opera, and any other product embedding Chromium V8. CISA added the vulnerability to the Known Exploited Vulnerabilities catalog on 2024-08-26, confirming active in-the-wild exploitation, and EPSS assigns a 20.7% probability of exploitation within 30 days (97th percentile).

Do: Update all Chromium-based browsers (Chrome, Edge, Opera, Brave) to the vendors' patched releases immediately and verify the installed version via chrome://version or edge://version. Per CISA's KEV required action, apply vendor mitigations or discontinue use if patches are unavailable; until patching completes, treat web browsing on high-value systems with caution and watch for vendors to publish the specific fixed version numbers.