Auth bypass in GNOME Gvfs
CVE-2019-3827
An incorrect permission check in the admin backend in gvfs before version 1.39.4 was found that allows reading and modify arbitrary files by privileged users without asking for password when no authentication agent is running. This vulnerability can be exploited by malicious programs running under privileges of users belonging to the wheel group to further escalate its privileges by modifying system files without user's knowledge. Successful exploitation requires uncommon system configuration.
Vulnerability class: Broken Access Control
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.0 (High). Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.004 (27.7th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 28th percentile — 27.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: +0.000
Affected products
- GNOME Gvfs
- [Unknown] Gvfs — versions 1.39.4
Weakness classification (CWE)
References
- bugzilla.redhat.com/show_bug.cgi (Patch, Third Party Advisory, Issue Tracking)
- gitlab.gnome.org/GNOME/gvfs/merge_requests/31 (Patch, Vendor Advisory)
- access.redhat.com/errata/RHSA-2019:1517 (vendor-advisory, Third Party Advisory)
- access.redhat.com/errata/RHSA-2019:2145 (vendor-advisory, Third Party Advisory)
Frequently asked questions
- What is CVE-2019-3827?
- CVE-2019-3827 is a high-severity vulnerability in GNOME Gvfs, classified under Incorrect Authorization. CVSS score: 7.0/10. Published 2019-03-25.
- How severe is CVE-2019-3827?
- High severity. CVSS v3 base score is 7.0 out of 10.