Auth bypass in Samba
CVE-2020-25718
A flaw was found in the way samba, as an Active Directory Domain Controller, is able to support an RODC (read-only domain controller). This would allow an RODC to print administrator tickets.
Vulnerability class: Broken Access Control
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.017 (76.3th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 76th percentile — 76.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.016 · newest: 0.017 · change: +0.001
Affected products
- Samba
- Fedoraproject Fedora — versions 35
- Samba — versions samba 4.15.2, samba 4.14.10, samba 4.13.14
Weakness classification (CWE)
Public proof-of-concept exploits
References
- bugzilla.redhat.com/show_bug.cgi (Third Party Advisory, Issue Tracking)
- www.samba.org/samba/security/CVE-2020-25718.html (Vendor Advisory)
- security.gentoo.org/glsa/202309-06 (vendor-advisory)
Frequently asked questions
- What is CVE-2020-25718?
- CVE-2020-25718 is a high-severity vulnerability in Samba, classified under Missing Authorization. CVSS score: 8.8/10. Published 2022-02-18.
- How severe is CVE-2020-25718?
- High severity. CVSS v3 base score is 8.8 out of 10.
- Is CVE-2020-25718 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.