CVE-2023-4052

Description

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.

Statement

Red Hat Product Security rates the severity of this flaw as determined by the Mozilla Foundation Security Advisory.

Common Vulnerability Scoring System (CVSS) Score Details

Info alert:Important note

CVSS scores for open source components depend on vendor-specific factors (e.g. version or build chain). Therefore, Red Hat's score and impact rating can be different from NVD and other vendors. Red Hat remains the authoritative CVE Naming Authority (CNA) source for its products and services (see Red Hat classifications).

The following CVSS metrics and score provided are preliminary and subject to review.

CVSS v3 Score Breakdown

Red HatNVDcve.org
Base Score6.16.5N/A
Attack VectorNetworkNetworkN/A
Attack ComplexityLowLowN/A
Privileges RequiredNoneLowN/A
User InteractionRequiredNoneN/A
ScopeChangedUnchangedN/A
ConfidentialityLowNoneN/A
Integrity ImpactLowHighN/A
Availability ImpactNoneNoneN/A

Vector

Red Hat: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

NVD: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N

Understanding the Weakness (CWE)

CWE-276

Confidentiality,Integrity

Technical Impact: Read Application Data; Modify Application Data

Acknowledgements

Red Hat would like to thank the Mozilla project for reporting this issue. Upstream acknowledges ycdxsb as the original reporter.

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