Permissions, Privileges, and Access Controls in Firefox ESR - CVE-2020-6828
Published: April 7, 2020
Vulnerability identifier: #VU26655
CSH Severity: Low
CVSS v4: 8.5 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2020-6828
CWE-ID: CWE-264
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerability details
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.
Affected software
Firefox ESR
Slackware Linux
Opensuse
Slackware Linux
Opensuse
How to mitigate CVE-2020-6828
Install updates from vendor's website.
Firefox ESR - update to 68.7.0