Vulnerability identifier: #VU25121
Vulnerability risk: Medium
CVSSv3.1: 5.9 [CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N/E:U/RL:O/RC:C]
CVE-ID:
CWE-ID:
CWE-284
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 gain unauthorized access to otherwise restricted functionality.
The vulnerability exists due to improper access restrictions imposed on extensions that are granted downloads.open permission. A remote attacker can bypass implemented security restrictions and launch or open arbitrary application on the system.
Note: the vulnerability affects Mac OSX users only.Mitigation
Install updates from vendor's website.
Vulnerable software versions
Mozilla Firefox: 61.0 - 72.0.2
Firefox ESR: 68.0 - 68.4.2, 60.0 - 60.9.0
External links
http://www.mozilla.org/en-US/security/advisories/mfsa2020-05/
http://www.mozilla.org/en-US/security/advisories/mfsa2020-06/
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.