CVE-2019-9812

CRITICAL9.3

Given a compromised sandboxed content process due to a separate vulnerability, it is possible to escape that sandbox by loading accounts

Published Jan 8, 2020

Modified 1 years ago

Details

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.

References

WEB

https://bugzilla.mozilla.org/show_bug.cgi?id=1538008

WEB

https://bugzilla.mozilla.org/show_bug.cgi?id=1538015

ADVISORY

https://www.cve.org/CVERecord?id=CVE-2019-9812

WEB

https://www.mozilla.org/security/advisories/mfsa2019-25/

WEB

https://www.mozilla.org/security/advisories/mfsa2019-26/

WEB