Improper Validation Affecting mozilla package, versions [,60.9.0)[68.0,68.1.0)(68.1.0,69.0)


Severity

Recommended
0.0
high
0
10

CVSS assessment made by Snyk's Security Team. Learn more

Threat Intelligence

EPSS
0.07% (35th percentile)

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  • Snyk IDSNYK-UNMANAGED-MOZILLA-2377533
  • published26 Jan 2022
  • disclosed27 Sept 2019
  • creditUnknown

Introduced: 27 Sep 2019

CVE-2019-11753  (opens in a new tab)
CWE-354  (opens in a new tab)

How to fix?

Upgrade mozilla to version 60.9.0, 68.1.0, 69.0 or higher.

Overview

Affected versions of this package are vulnerable to Improper Validation. 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.
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.

CVSS Scores

version 3.1