ChromeHeap | CVE-2022-4135
Coverage and Recommendation for Lookout Admins
Lookout admins should proactively enable the vulnerability protection policy in the Lookout console and configure it with the appropriate remediation actions that align with their organization’s response workflows. As of December 8th, 2022, Lookout will alert on Chrome for Android versions 107.0.5304.140 or before and Edge for Android versions 107.0.1418.61 or before as vulnerable apps. In addition, CISA is requiring all government organizations to update to the patched versions of these apps by December 19th, 2022.
Overview
Google recently released a patch for a new zero-day vulnerability, tracked as CVE-2022-4135, found in the Chromium open-source web browser project, which provides the codebase for many popular browsers. This vulnerability is reported to be of critical severity at a CVSS 3.x score of 9.6 and exists in the GPU component causing a heap buffer overflow. Reportedly, this CVE affects older versions of Google Chrome and Microsoft Edge, and patches have been released for both in response to this zero-day. Google has disclosed that the vulnerability is currently known to be actively exploited, making this disclosure a concern for any organization or individual that leverages the Chrome browser across Android, Windows, Mac, or Linux.
Lookout Analysis
The most likely way for an attacker to exploit this vulnerability would be to send a link leading to a malcrafted webpage to their target in hopes that the target still has a vulnerable version of Chrome on their device. A successful exploit may grant a threat actor access to Chrome's capabilities without needing to root the device. It can enable threat actors to crash a program or execute codes remotely.
Mobile device management (MDM) tools will not detect a successful exploitation. In the event of a successful exploit, the actor could have access to any capability that the browser has. Per NIST’s national vulnerability database, this can arm “a remote attacker who had compromised the renderer process to potentially perform a sandbox escape via a crafted HTML page”
Authors
Lookout
Lookout is a cybersecurity company that makes it possible for tens of millions of individuals, enterprises and government agencies to be both mobile and secure. Powered by a dataset of virtually all the mobile code in the world -- 40 million apps and counting -- the Lookout Security Cloud can identify connections that would otherwise go unseen and predict and stop mobile attacks before they do harm. The world’s leading mobile network operators, including AT&T, Deutsche Telekom, EE, KDDI, Orange, Sprint, T-Mobile and Telstra, have selected Lookout as its preferred mobile security solution. Lookout is also partnered with such enterprise leaders as AirWatch, Ingram Micro, Microsoft, and MobileIron. Headquartered in San Francisco, Lookout has offices in Amsterdam, Boston, London, Sydney, Tokyo, Toronto and Washington, D.C.
