Improper validation of integrity check value in Mozilla Firefox - CVE-2019-11753
Published: September 3, 2019
Vulnerability identifier: #VU20822
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2019-11753
CWE-ID: CWE-354
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vendor: Mozilla
Affected software:
Mozilla Firefox
Mozilla Firefox
Detailed vulnerability description
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to the Mozilla Maintenance Service does not check integrity of the binary files that were installed into a custom and unprotected folder on the system. A local user can manipulate the Mozilla Maintenance Service to update this unprotected location and escalate privilege on the system.
Note, the vulnerability affects Windows installation only.
How to mitigate CVE-2019-11753
Install updates from vendor's website.