Vulnerability identifier: #VU62757
Vulnerability risk: High
CVSSv3.1: 7.1 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N/E:U/RL:O/RC:C]
CVE-ID:
CWE-ID:
CWE-264
Exploitation vector: Network
Exploit availability: No
Vulnerable software:
Mozilla Firefox
Client/Desktop applications /
Web browsers
Firefox ESR
Client/Desktop applications /
Web browsers
Vendor: Mozilla
Description
The vulnerability allows a remote attacker to bypass implemented security restrictions.
The vulnerability exists due improper management of permissions within the application. Documents in deeply-nested cross-origin browsing contexts can obtain permissions granted to the top-level origin. A remote attacker can create a web page that bypasses the existing browser prompt and wrongfully inherits the top-level permissions.
Mitigation
Install updates from vendor's website.
Vulnerable software versions
Mozilla Firefox: 70.0 - 99.0.1
Firefox ESR: 91.0 - 91.8.0, 78.0 - 78.15.0
External links
http://www.mozilla.org/en-US/security/advisories/mfsa2022-16/
http://www.mozilla.org/en-US/security/advisories/mfsa2022-17/
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.