CVEvulnerability

CVE-2019-11753

7.8 HIGH Published 2019-09-27 Modified 2026-06-17 Official page ↗
Status
Modified
Published
2019-09-27
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.1 ([email protected])
7.8 HIGH — CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS 2.0 ([email protected])
4.6 MEDIUM — AV:L/AC:L/Au:N/C:P/I:P/A:P
Weaknesses
CWE-354

Description

The Firefox installer allows Firefox to be installed to a custom user writable location, leaving it unprotected from manipulation by unprivileged users or malware. If the Mozilla Maintenance Service is manipulated to update this unprotected location and the updated maintenance service in the unprotected location has been altered, the altered maintenance service can run with elevated privileges during the update process due to a lack of integrity checks. This allows for privilege escalation if the executable has been replaced locally. <br>*Note: This attack requires local system access and only affects Windows. Other operating systems are not affected.*. This vulnerability affects Firefox < 69, Firefox ESR < 60.9, and Firefox ESR < 68.1.

Affected configurations

• mozilla firefox (< 60.9.0) • mozilla firefox (< 69.0) • mozilla firefox esr (>= 68.0 < 68.1.0)

Related

Weakness · CWE (1)

  • CWE-354 Improper Validation of Integrity Check Value weakness

References