Vulnerability identifier: #VU20827

Vulnerability risk: Medium

CVSSv3.1: 5.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2019-11748

CWE-ID: CWE-732

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Mozilla Firefox
Client/Desktop applications / Web browsers

Vendor: Mozilla

Description

The vulnerability allows a remote attacker to collect sensitive information.

The vulnerability exists due to the WebRTC in Firefox honors persisted permissions given to sites for access to microphone and camera resources even when in a third-party context. A remote attacker that can create a specially crafted webpage that loads a trusted resource and trick the browser into allowing usage of microphone and camera resources.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Mozilla Firefox: 66.0.2 - 68.0.2

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External links
http://www.mozilla.org/en-US/security/advisories/mfsa2019-25/

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.