Privilege Escalation and Arbitrary File Execution in Mozilla Windows Updater

CVE-2017-7766 · MEDIUM Severity

AV:L/AC:L/AU:N/C:P/I:P/A:P

An attack using manipulation of "updater.ini" contents, used by the Mozilla Windows Updater, and privilege escalation through the Mozilla Maintenance Service to allow for arbitrary file execution and deletion by the Maintenance Service, which has privileged access. Note: This attack requires local system access and only affects Windows. Other operating systems are not affected. This vulnerability affects Firefox ESR < 52.2 and Firefox < 54.

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