Code Injection in Mozilla products - CVE-2022-1802

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Main Vulnerability Database Vulnerabilities #VU63501

Code Injection in Mozilla products - CVE-2022-1802

Published: May 21, 2022 / Updated: August 20, 2022


Vulnerability identifier: #VU63501
CSH Severity: High
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/U:Amber
CVE-ID: CVE-2022-1802
CWE-ID: CWE-94
Exploitation vector: Remote access
Exploit availability: Public exploit is available
Vendor: Mozilla
Affected software:
Mozilla Firefox
Firefox ESR
Firefox for Android

Detailed vulnerability description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to prototype pollution in Top-Level Await implementation. A remote attacker can trick the victim to visit a specially crafted website, corrupt the methods of an Array object in JavaScript via prototype pollution and execute arbitrary JavaScript code in a privileged context.

Successful exploitation of the vulnerability may allow an attacker to compromise the affected system.


How to mitigate CVE-2022-1802

Install updates from vendor's website.

Sources