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

> A delegated administrator can retain excessive rights over newly created computer objects in Samba Active Directory, leading to potential privilege escalation.

- **Severity:** High 7.5 (`CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** Yes
- **Published:** 17 Nov 2024
- **Updated:** 21 Oct 2026
- **Also known as:** AZL-53220, DEBIAN-CVE-2020-25720, ECHO-1522-c16d-74fe, GHSA-r7p2-7qw3-phxg, UBUNTU-CVE-2020-25720

## What is CVE-2020-25720?

CVE-2020-25720 is a high-severity vulnerability in Red Hat Enterprise Linux 10, published on 17 Nov 2024. Any signed-in user can exploit it over the network, with no action from the victim.

### 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.

Weakness: CWE-266 (Incorrect Privilege Assignment)

## Which versions are affected by CVE-2020-25720?


## How do I fix CVE-2020-25720?

Apply the vendor's patch.

## Is CVE-2020-25720 being exploited?

There is no known exploitation of CVE-2020-25720 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2020-25720 and fix it if it is affected.

What it is: CVE-2020-25720 is a high-severity vulnerability in Red Hat Enterprise Linux 10, published on 17 Nov 2024. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2020-25720 in the wild and no public exploit code.

Affected product: Red Hat Enterprise Linux 10. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2020-25720/ (Markdown: https://insights.sbomify.com/CVE-2020-25720/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2020-25720
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2020-25720
- OSV: https://osv.dev/vulnerability/CVE-2020-25720

---
From sbomify Insights: https://insights.sbomify.com/CVE-2020-25720/
Summaries are generated and may contain mistakes; the official description above is the record.