Medium severity · published Aug 1, 2023
CVE-2023-4052
The Firefox updater created a directory writable by non-privileged users
6.5
CVSS
0.7%
EPSS
No
On KEV
Description
The Firefox updater created a directory writable by non-privileged users. When uninstalling Firefox, any files in that directory would be recursively deleted with the permissions of the uninstalling user account. This could be combined with creation of a junction (a form of symbolic link) to allow arbitrary file deletion controlled by the non-privileged user.
*This bug only affects Firefox on Windows. Other operating systems are unaffected.* This vulnerability affects Firefox < 116, Firefox ESR < 115.1, and Thunderbird < 115.1.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
None
Integrity
High
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.7% · higher than 53% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
FI
Firefox · Mozilla
before 116.0 · source: NVD
FE
Firefox Esr · Mozilla
before 115.1 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2023-4052
CVE.org
https://www.cve.org/CVERecord?id=CVE-2023-4052
Issue Tracking
https://bugzilla.mozilla.org/show_bug.cgi?id=1824420
Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2023-29/
Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2023-31/
www.mozilla.org
https://www.mozilla.org/security/advisories/mfsa2023-33/
More from Firefox
10.0
CVE-2019-11708
Mozilla Firefox and Thunderbird Sandbox Escape Vulnerability
9.8
CVE-2024-9680
Mozilla Firefox Use-After-Free Vulnerability
9.8
CVE-2010-3765
Mozilla Multiple Products Remote Code Execution Vulnerability
9.6
CVE-2022-26486
Mozilla Firefox Use-After-Free Vulnerability
8.8
CVE-2023-5217
Google Chromium libvpx Heap Buffer Overflow Vulnerability