CVE-2023-4052 — Link Following in Mozilla Firefox

CWE-59 — Link FollowingCWE-276 — Incorrect Default Permissions9 documents7 sources
Severity
6.5MEDIUMNVD
EPSS
0.2%
top 60.49%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
3
Mozilla FirefoxMozilla Firefox ESRMozilla Thunderbird
Timeline
PublishedAug 1

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 …

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:NExploitability: 2.8 | Impact: 3.6

Affected Packages5 packages

▶CVEListV5mozilla/firefoxunspecified — 116
▶NVDmozilla/firefox< 116.0
▶CVEListV5mozilla/firefox_esrunspecified — 115.1
▶NVDmozilla/firefox_esr< 115.1
▶CVEListV5mozilla/thunderbirdunspecified — 115.1

🔴Vulnerability Details

3
GHSA
GHSA-gjqm-928w-fr7f: The Firefox updater created a directory writable by non-privileged users↗2023-08-01
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CVEList
CVE-2023-4052: The Firefox updater created a directory writable by non-privileged users↗2023-08-01
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OSV
CVE-2023-4052: The Firefox updater created a directory writable by non-privileged users↗2023-08-01
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📋Vendor Advisories

5
Red Hat
Mozilla: File deletion and privilege escalation through Firefox uninstaller↗2023-08-01
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Debian
CVE-2023-4052: firefox - The Firefox updater created a directory writable by non-privileged users. When u...↗2023
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Mozilla
Mozilla Foundation Security Advisory 2023-31: CVE-2023-4052↗
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Mozilla
Mozilla Foundation Security Advisory 2023-29: CVE-2023-4052↗
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Mozilla
Mozilla Foundation Security Advisory 2023-33: CVE-2023-4052↗
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CVE-2023-4052 — Link Following in Mozilla Firefox | cvebase