Cybersecurity Threat Advisory: Mozilla Firefox zero-day vulnerability

A Mozilla Firefox critical zero-day vulnerability, CVE-2024-9680, has emerged. This vulnerability allows an attacker to have unauthorized access and potential remote code execution on the affected OS. Continue reading this Cybersecurity Threat Advisory for recommendations to remediate this threat.

What is the threat?

CVE-2024-9680 is a serious vulnerability that affects the Firefox browser. An attacker can exploit this vulnerability using specially crafted web content and perform remote code execute on the targeted machine. With arbitrary code execution, the attacker can then gain unauthorized access to the machine and perform malicious acts. This vulnerability has a CVSS score of 9.5.

Why is this noteworthy?

This vulnerability is actively exploited by cybercriminal groups. It poses a significant risk due to the widespread usage of the browser across corporations, government agencies, and private individuals. Attackers that exploit this vulnerability can gain control of the affected machine, leading to data exfiltration, loss of sensitive information, or further attacks on other parts of the network by using further lateral movement.

What is the exposure or risk?

Organizations and individuals using vulnerable versions of Firefox are at high risk. As of now, this vulnerability has been confirmed in Firefox versions prior to 131.0.2, Firefox ESR prior to 128.3.1 and 115.16.1.

What are the recommendations?

Barracuda recommends users and organizations to take these steps to minimize the risk of being attacked:

• Install patches released by Mozilla on the affected versions.
• Ensure your OS is up to date to reduce vulnerabilities in your environment.

References

For more in-depth information about the recommendations, please visit the following links:

• Security Vulnerability fixed in Firefox 131.0.2, Firefox ESR 128.3.1, Firefox ESR 115.16.1 — MozillaCVE-
• Mozilla fixes Firefox zero-day actively exploited in attacks (bleepingcomputer.com)
• Firefox Zero-Day Under Attack: Update Your Browser Immediately (thehackernews.com)

If you have any questions about this Cybersecurity Threat Advisory, please contact Barracuda XDR’s Security Operations Center.