Security features bypass in Mozilla Firefox and Firefox for Android - CVE-2023-23597
Published: January 17, 2023
Vulnerability identifier: #VU71223
CSH Severity: Medium
CVSS v4: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2023-23597
CWE-ID: CWE-254
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to read arbitrary files on the system.
The vulnerability exists due to a logic error in the process allocation. A compromised web child process can disable the web security opening restrictions and spawn a new child process within the file:// context, providing the ability to read arbitrary files on the system.
Affected software
Mozilla Firefox
Firefox for Android
Gentoo Linux
Ubuntu
www-client/firefox
firefox (Ubuntu package)
Firefox for Android
Gentoo Linux
Ubuntu
www-client/firefox
firefox (Ubuntu package)
How to mitigate CVE-2023-23597
Install updates from vendor's website.
Mozilla Firefox - update to 109.0
Firefox for Android - update to 109.1.1
www-client/firefox - update to 104
firefox (Ubuntu package) - addressed in versions 109.0+build2-0ubuntu0.18.04.1, 109.0+build2-0ubuntu0.20.04.1, 109.0.1+build1-0ubuntu0.18.04.2, 109.0.1+build1-0ubuntu0.20.04.2
Firefox for Android - update to 109.1.1
www-client/firefox - update to 104
firefox (Ubuntu package) - addressed in versions 109.0+build2-0ubuntu0.18.04.1, 109.0+build2-0ubuntu0.20.04.1, 109.0.1+build1-0ubuntu0.18.04.2, 109.0.1+build1-0ubuntu0.20.04.2