CVE-2019-9812 — Execution with Unnecessary Privileges in Mozilla Firefox
CWE-250 — Execution with Unnecessary PrivilegesCWE-20 — Improper Input Validation12 documents8 sources
Severity
9.3CRITICALNVD
OSV9.8
EPSS
0.5%
top 33.14%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
Timeline
PublishedJan 8
Latest updateMay 24
Description
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:N/I:H/A:HExploitability: 2.8 | Impact: 5.8
Affected Packages4 packages
🔴Vulnerability Details
5GHSA▶
GHSA-jh9w-r6qf-jxc5: Given a compromised sandboxed content process due to a separate vulnerability, it is possible to escape that sandbox by loading accounts↗2022-05-24
OSV▶
CVE-2019-9812: Given a compromised sandboxed content process due to a separate vulnerability, it is possible to escape that sandbox by loading accounts↗2020-01-08
CVEList▶
CVE-2019-9812: Given a compromised sandboxed content process due to a separate vulnerability, it is possible to escape that sandbox by loading accounts↗2020-01-08