External risk intelligence

Google Chrome WebRTC Vulnerability Allows Remote Code Execution.

CVE advisoryKnown Exploit

CVE-2022-2294

The vulnerability exists within the client-side WebRTC component of web browsers and related applications. It requires the user to load a crafted HTML page, making it a client-side execution issue rather than a public-facing network service or internet-reachable infrastructure component.

Out-of-bounds Write

Google Chrome

before 103.0.5060.1148.03536before 2.36.5before 15.6before 10.15.710.15.7before 11.6.812.0 to before 12.5before 8.7

Halo Surface Signal: 1 out of 5 — much less likely to be public-facing.

External exposure likelihood

Horizon Alert

Summary of the vulnerability and why it matters

A heap buffer overflow vulnerability exists in the WebRTC component of various web browsers. This flaw allows a remote attacker to potentially cause a heap corruption. Such corruption could lead to significant disruption across affected systems and business operations.

WebRTC component
Heap buffer overflow
System instability and data corruption

Attack Path

How an attacker could exploit the issue

A heap buffer overflow vulnerability in WebRTC allows a remote attacker to cause heap corruption through a specially crafted HTML page. This could enable attackers to gain control over affected systems. The vulnerability is present in the WebRTC component used by various web browsers and applications.

Malicious HTML page exposure.
Attacker triggers heap corruption.
Control over affected systems.

Live Threat

Current exploitation, exposure, and threat context

This vulnerability presents a significant risk due to its potential for exploitation by remote attackers. The identified heap buffer overflow in WebRTC could allow an attacker to corrupt memory, potentially leading to the execution of malicious code. Given that this affects widely used web browsers and their integrated real-time communication capabilities, the impact on affected organizations could be substantial. It is advisable for organizations to treat this vulnerability with urgency and apply necessary updates.

Attackers with moderate skill.
Requires user interaction with a crafted page.
High business risk and urgency.

Operational Fix

Recommended remediation, mitigation, and detection steps

This vulnerability in WebRTC, a component used in web browsers like Google Chrome, could allow attackers to cause heap corruption. The issue is accessible through a specially crafted webpage, potentially leading to the execution of malicious code. Organizations should address this by identifying systems that use affected software, mitigating potential exposure, applying vendor-provided security updates, and verifying the successful implementation of these fixes. Continuous monitoring for related suspicious activities is also recommended.

Find affected assets.
Reduce exposure or isolate risk.
Fix, verify, and monitor.

Supplementary metadata

CVSS vector

Validate whether this threat affects your internet-facing exposure.

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Frequently asked questions

What is WebRTC and what is it used for in browsers like Google Chrome?

WebRTC is an open-source project that enables real-time communication directly between web browsers and applications. It's used for features like video conferencing, voice calls, and file sharing without needing extra plugins. This technology is integrated into browsers like Google Chrome, allowing for seamless communication features.

What kind of vulnerability is CVE-2022-2294 and how does it affect software?

CVE-2022-2294 is a heap buffer overflow vulnerability. This type of weakness means that a program attempts to write more data into a memory buffer than it can hold. In this case, it's within the WebRTC component, and successful exploitation could lead to heap corruption, potentially allowing an attacker to gain control.

How can an attacker exploit this WebRTC vulnerability, and what does not trigger it?

An attacker could exploit this by presenting a user with a specially crafted HTML page. Visiting this page is what triggers the vulnerability. The advisory does not specify what does *not* trigger the bug, but typically, simply browsing normal websites or using the browser without encountering such a malicious page would not activate this specific flaw.

Who should be concerned about this CVE-2022-2294 threat?

Organizations should be concerned if they use web browsers or applications that incorporate the affected WebRTC component, particularly if those systems are internet-facing. While the vulnerability requires user interaction with a malicious page, its potential impact means it's relevant for any organization that wants to protect its users and systems from compromise.

What are the first steps for responding to this WebRTC vulnerability?

The initial steps involve identifying all systems running affected versions of the software. After identification, applying security updates provided by the software vendor is crucial. It's also recommended to monitor for any suspicious activity that might indicate exploitation.

References

Written by Nicholas Merritt

Nicholas Merritt is VP of Security Solutions at Halo Security. With more than 25 years across application security, vulnerability prioritization, and offensive security, he helps teams translate threat data into practical exposure validation and remediation focus. He authors Halo Threat Intelligence CVE advisories using Halo Surface Signal and H/A/L/O context to prioritize internet-facing risk.