Vulnerability identifier: #VU26655
Vulnerability risk: Low
CVSSv3.1: 6.8 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]
CVE-ID:
CWE-ID:
CWE-264
Exploitation vector: Local
Exploit availability: No
Vulnerable software:
Firefox ESR
Client/Desktop applications /
Web browsers
Vendor: Mozilla
Description
A malicious Android application could craft an Intent that would have been processed by Firefox for Android and potentially result in a file overwrite in the user's profile directory. One exploitation vector for this would be to supply a user.js file providing arbitrary malicious preference values. Control of arbitrary preferences can lead to sufficient compromise such that it is generally equivalent to arbitrary code execution.
Note: This issue only affects Firefox for Android. Other operating systems are unaffected.
Mitigation
Install updates from vendor's website.
Vulnerable software versions
Firefox ESR: 68.0 - 68.6.1, 60.0 - 60.9.0
External links
http://www.mozilla.org/en-US/security/advisories/mfsa2020-13/
Can this vulnerability be exploited remotely?
No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.