Bug 2228369 (CVE-2023-4052) - CVE-2023-4052 Mozilla: File deletion and privilege escalation through Firefox uninstaller
Summary: CVE-2023-4052 Mozilla: File deletion and privilege escalation through Firefox...
Keywords:
Status: CLOSED NOTABUG
Alias: CVE-2023-4052
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Nobody
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks: 2225289
TreeView+ depends on / blocked
 
Reported: 2023-08-02 07:53 UTC by Dhananjay Arunesh
Modified: 2023-08-04 12:12 UTC (History)
8 users (show)

Fixed In Version: firefox 115.1, thunderbird 115.1
Doc Type: ---
Doc Text:
A flaw was found in Mozilla. The Mozilla Foundation Security Advisory described the issue of the Firefox updater creating 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 creating 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.
Clone Of:
Environment:
Last Closed: 2023-08-02 12:09:08 UTC
Embargoed:


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Description Dhananjay Arunesh 2023-08-02 07:53:24 UTC
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.*

External Reference:
https://www.mozilla.org/en-US/security/advisories/mfsa2023-31/#CVE-2023-4052

Comment 1 Product Security DevOps Team 2023-08-02 12:09:06 UTC
This bug is now closed. Further updates for individual products will be reflected on the CVE page(s):

https://access.redhat.com/security/cve/cve-2023-4052


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