CVE-2023-4052

Summary

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.

Affected Software

VendorProductVersion RangeStatus
MozillaFirefoxunspecified < 116affected
MozillaFirefox ESRunspecified < 115.1affected
MozillaThunderbirdunspecified < 115.1affected

Weaknesses

  • File deletion and privilege escalation through Firefox uninstaller

ADP Enrichment

CVE Program Container

Additional References

CISA ADP Vulnrichment

  • SSVC:
  • Exploitation: none
    • Automatable: no
    • Technical Impact: partial

References