Auth bypass in Samba
CVE-2016-2124
A flaw was found in the way samba implemented SMB1 authentication. An attacker could use this flaw to retrieve the plaintext password sent over the wire even if Kerberos authentication was required.
Vulnerability class: Broken Authentication
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.9 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N.
EPSS exploit prediction
EPSS: 0.018 (77.9th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 78th percentile — 77.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.018 · newest: 0.018 · change: 0.000
Affected products
- Samba
- Canonical Ubuntu Linux — versions 18.04, 20.04, 21.04
- Debian Linux — versions 9.0, 10.0
- Fedoraproject Fedora — versions 33, 34, 35
- Red Hat Codeready Linux Builder
- Red Hat Enterprise Linux — versions 7.0, 8.0
- Red Hat Enterprise Linux Desktop — versions 7.0
- Red Hat Enterprise Linux Eus — versions 8.2, 8.4
- Red Hat Enterprise Linux For IBM Z Systems — versions 7.0, 8.0
- Red Hat Enterprise Linux For IBM Z Systems Eus — versions 8.2, 8.4
Weakness classification (CWE)
Public proof-of-concept exploits
References
- bugzilla.redhat.com/show_bug.cgi (Patch, Third Party Advisory, Issue Tracking)
- www.samba.org/samba/security/CVE-2016-2124.html (Mitigation, Vendor Advisory)
- lists.debian.org/debian-lts-announce/2023/09/msg00013.html (mailing-list)
- security.gentoo.org/glsa/202309-06 (vendor-advisory)
Frequently asked questions
- What is CVE-2016-2124?
- CVE-2016-2124 is a medium-severity vulnerability in Samba, classified under Improper Authentication. CVSS score: 5.9/10. Published 2022-02-18.
- How severe is CVE-2016-2124?
- Medium severity. CVSS v3 base score is 5.9 out of 10.
- Is CVE-2016-2124 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.