Mozilla Firefox up to 67.x Sandbox Object input validation

Summaryinfo

A vulnerability was found in Mozilla Firefox up to 67.x. It has been rated as critical. Impacted is an unknown function of the component Sandbox. Performing a manipulation as part of Object results in input validation. This vulnerability is known as CVE-2019-11716. Remote exploitation of the attack is possible. No exploit is available. Upgrading the affected component is advised.

Detailsinfo

A vulnerability, which was classified as critical, was found in Mozilla Firefox up to 67.x (Web Browser). This affects an unknown function of the component Sandbox. The manipulation as part of a Object leads to a input validation vulnerability. CWE is classifying the issue as CWE-20. The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

Until explicitly accessed by script, window.globalThis is not enumerable and, as a result, is not visible to code such as Object.getOwnPropertyNames(window). Sites that deploy a sandboxing that depends on enumerating and freezing access to the window object may miss this, allowing their sandboxes to be bypassed. This vulnerability affects Firefox < 68.

The weakness was published 07/23/2019 (Website). It is possible to read the advisory at security.gentoo.org. This vulnerability is uniquely identified as CVE-2019-11716 since 05/03/2019. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. It demands that the victim is doing some kind of user interaction. The technical details are unknown and an exploit is not publicly available. The pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 07/10/2020).

Upgrading to version 68.0 eliminates this vulnerability.

Similar entries are available at VDB-138488, VDB-138489, VDB-138490 and VDB-138491. Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Type

• Web Browser

Vendor

• Mozilla

Name

• Firefox

Version

• 67.x

License

• open-source

Website

• Vendor: https://www.mozilla.org/
• Product: https://www.mozilla.org/en-US/firefox/

CPE 2.3info

• 🔍

CPE 2.2info

• 🔍

CVSSv4info

CVSSv3info

CVSSv2info

Exploitinginfo

Threat Intelligenceinfo

Countermeasuresinfo

Timelineinfo

Sourcesinfo

Entryinfo

Be aware that VulDB is the high quality source for vulnerability data.

Discussion