CVE-2023-4052
First published: Tue Aug 01 2023(Updated: )
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 and Firefox ESR < 115.1.
Credit: security@mozilla.org security@mozilla.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| <116 | 116 | |
| <115.1 | 115.1 | |
| Mozilla Firefox | <116.0 | |
| Mozilla Firefox ESR | <115.1 | |
| <115.1 | 115.1 |
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Reference Links
- https://bugzilla.mozilla.org/show_bug.cgi?id=1824420
- https://www.mozilla.org/en-US/security/advisories/mfsa2023-29/
- https://www.mozilla.org/en-US/security/advisories/mfsa2023-31/
- https://www.mozilla.org/en-US/security/advisories/mfsa2023-33/
- https://www.mozilla.org/security/advisories/mfsa2023-29/
- https://www.mozilla.org/security/advisories/mfsa2023-31/
- https://www.mozilla.org/security/advisories/mfsa2023-33/
Peer vulnerabilities
(Found alongside the following vulnerabilities)
Frequently Asked Questions
What is the vulnerability ID for this vulnerability?
The vulnerability ID for this vulnerability is CVE-2023-4052.
What software is affected by this vulnerability?
Mozilla Firefox, Mozilla Firefox ESR, and Mozilla Thunderbird are affected by this vulnerability.
What is the severity of CVE-2023-4052?
CVE-2023-4052 has a severity rating of 6.5 (Medium).
How does CVE-2023-4052 impact non-privileged users?
CVE-2023-4052 allows non-privileged users to create a writable directory that can be used to delete files with the permissions of the uninstalling user account.
Are there any references related to CVE-2023-4052?
Yes, there are references related to CVE-2023-4052. You can find them at the following links: [link1](https://bugzilla.mozilla.org/show_bug.cgi?id=1824420), [link2](https://www.mozilla.org/en-US/security/advisories/mfsa2023-33/), [link3](https://www.mozilla.org/en-US/security/advisories/mfsa2023-29/).
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