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Vulnerability · Published Nov 17, 2024 · Assigned by redhat

CVE-2020-25720Samba: check attribute access rights for ldap adds of computers

High 7.5

In plain English

A high-severity security flaw in samba. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.5% (higher than 43% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)7.5High
Exploit odds (30 days)0.5%top 57.4% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official description

A vulnerability was found in Samba where a delegated administrator with permission to create objects in Active Directory can write to all attributes of the newly created object, including security-sensitive attributes, even after the object's creation. This issue occurs because the administrator owns the object due to the lack of an Access Control List (ACL) at the time of creation and later being recognized as the 'creator owner.' The retained significant rights of the delegated administrator may not be well understood, potentially leading to unintended privilege escalation or security risks.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:12samba2:4.17.8+dfsg-1DEBIAN-CVE-2020-25720
Debian:13samba2:4.17.8+dfsg-1DEBIAN-CVE-2020-25720
Debian:14samba2:4.17.8+dfsg-1DEBIAN-CVE-2020-25720
Ubuntu:22.04:LTSsambano fix listedUBUNTU-CVE-2020-25720

Affected products (as reported)

VendorProductVersions
samba 0 – before 4.17.8
Red Hat Red Hat Enterprise Linux 10 see references
Red Hat Red Hat Enterprise Linux 6 see references
Red Hat Red Hat Enterprise Linux 6 see references
Red Hat Red Hat Enterprise Linux 7 see references
Red Hat Red Hat Enterprise Linux 8 see references
Red Hat Red Hat Enterprise Linux 9 see references
Red Hat Red Hat OpenShift Container Platform 4 see references
Red Hat Red Hat OpenShift Container Platform 4 see references
Red Hat Red Hat Storage 3 see references

Weakness: CWE-266 · Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

References