Vulnerability in Samba
CVE-2018-16857
Samba from version 4.9.0 and before version 4.9.3 that have AD DC configurations watching for bad passwords (to restrict brute forcing of passwords) in a window of more than 3 minutes may not watch for bad passwords at all. The primary risk from this issue is with regards to domains that have been upgraded from Samba 4.8 and earlier. In these cases the manual testing done to confirm an organisation's password policies apply as expected may not have been re-done after the upgrade.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.4 (High). Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N.
EPSS exploit prediction
EPSS: 0.023 (82.6th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 83rd percentile — 82.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.023 · newest: 0.023 · change: 0.000
Affected products
- Samba
- [Unknown] Samba — versions 4.9.3
Weakness classification (CWE)
References
- security.netapp.com/advisory/ntap-20181127-0001/ (Third Party Advisory)
- bugzilla.redhat.com/show_bug.cgi (Third Party Advisory, Mitigation, Issue Tracking)
- www.securityfocus.com/bid/106024 (VDB Entry, Third Party Advisory, vdb-entry)
- www.samba.org/samba/security/CVE-2018-16857.html (Patch, Mitigation, Vendor Advisory)
- security.gentoo.org/glsa/202003-52 (vendor-advisory)
Frequently asked questions
- What is CVE-2018-16857?
- CVE-2018-16857 is a high-severity vulnerability in Samba, classified under CWE-358. CVSS score: 7.4/10. Published 2018-11-28.
- How severe is CVE-2018-16857?
- High severity. CVSS v3 base score is 7.4 out of 10.