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prionPRIOn knowledge basePRION:CVE-2019-9812
HistoryJan 08, 2020 - 10:15 p.m.

Code injection

2020-01-0822:15:00
PRIOn knowledge base
www.prio-n.com
12

8.2 High

AI Score

Confidence

High

0.005 Low

EPSS

Percentile

77.0%

Given a compromised sandboxed content process due to a separate vulnerability, it is possible to escape that sandbox by loading accounts.firefox.com in that process and forcing a log-in to a malicious Firefox Sync account. Preference settings that disable the sandbox are then synchronized to the local machine and the compromised browser would restart without the sandbox if a crash is triggered. This vulnerability affects Firefox ESR < 60.9, Firefox ESR < 68.1, and Firefox < 69.