CVE-2020-25718 — Missing Authorization in Samba

CWE-862 — Missing AuthorizationCWE-732 — Incorrect Permission Assignment12 documents7 sources
Severity
8.8HIGHNVD
OSV5.9
EPSS
0.2%
top 58.24%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
7
SambaDebian SambaFedoraproject Fedora+4 more
Timeline
PublishedFeb 18
Latest updateFeb 19

Description

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.

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HExploitability: 2.8 | Impact: 5.9

Affected Packages9 packages

▶NVDsamba/samba4.0.0 — 4.13.14+2
▶debiandebian/samba< samba 2:4.13.14+dfsg-1 (bookworm)
▶Debiansamba/samba< 2:4.13.13+dfsg-1~deb11u2+3
▶Ubuntusamba/samba< 2:4.13.14+dfsg-0ubuntu0.20.04.4+2
▶CVEListV5samba/sambasamba 4.15.2, samba 4.14.10, samba 4.13.14

Also affects: Fedora 35

🔴Vulnerability Details

5
GHSA
GHSA-xrvp-6c6f-cv37: A flaw was found in the way samba, as an Active Directory Domain Controller, is able to support an RODC (read-only domain controller)↗2022-02-19
▶
OSV
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)↗2022-02-18
▶
OSV
samba regression↗2021-12-13
▶
OSV
samba regressions↗2021-12-06
▶
OSV
samba vulnerabilities↗2021-11-11
▶

📋Vendor Advisories

6
Microsoft
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.↗2022-02-08
▶
Ubuntu
Samba regression↗2021-12-13
▶
Ubuntu
Samba regressions↗2021-12-06
▶
Ubuntu
Samba vulnerabilities↗2021-11-11
▶
Red Hat
samba: Samba AD DC did not correctly sandbox Kerberos tickets issues by an RODC↗2021-11-09
▶