Vulnerability in Facebook Osquery
CVE-2019-3567
In some configurations an attacker can inject a new executable path into the extensions.load file for osquery and hard link a parent folder of a malicious binary to a folder with known 'safe' permissions. Under those circumstances osquery will load said malicious executable with SYSTEM permissions. The solution is to migrate installations to the 'Program Files' directory on Windows which restricts unprivileged write access. This issue affects osquery prior to v3.4.0.
EPSS: 0.017 (75.1th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 8.1 (High). Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Facebook Osquery — versions 3.4.0, unspecified
- Linuxfoundation Osquery
Weakness classification (CWE)
References
- cve-assign@fb.com (Third Party Advisory, x_refsource_MISC)
Frequently asked questions
- What is CVE-2019-3567?
- CVE-2019-3567 is a high-severity vulnerability in Facebook Osquery, classified under Improper Access Control. CVSS score: 8.1/10. Published 2019-06-03.
- How severe is CVE-2019-3567?
- High severity. CVSS v3 base score is 8.1 out of 10.