# CVE-2013-1863: Missing authorization in n/a

> Authenticated users can read, modify, or delete arbitrary files on Samba Active Directory domain controllers due to insecure default share permissions.

- **Severity:** Medium 6.0 (`AV:N/AC:M/Au:S/C:P/I:P/A:P`)
- **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:** 19 Mar 2013
- **Updated:** 16 Sep 2024
- **Also known as:** GHSA-9hwg-3f52-9mx8

## What is CVE-2013-1863?

CVE-2013-1863 is a medium-severity missing authorization vulnerability in Samba Samba, published on 19 Mar 2013. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

Samba 4.x before 4.0.4, when configured as an Active Directory domain controller, uses world-writable permissions on non-default CIFS shares, which allows remote authenticated users to read, modify, create, or delete arbitrary files via standard filesystem operations.

Weakness: CWE-264

## Which versions are affected by CVE-2013-1863?

It affects 1 product.


Products: Samba Samba.

## How do I fix CVE-2013-1863?

Upgrade to a fixed version.

## Is CVE-2013-1863 being exploited?

There is no known exploitation of CVE-2013-1863 in the wild and no public exploit code.

## Other vulnerabilities in Samba Samba

- [CVE-2012-1182](https://insights.sbomify.com/CVE-2012-1182/): Integer overflow in n/a (critical 10.0)
- [CVE-2007-2446](https://insights.sbomify.com/CVE-2007-2446/): Memory corruption in n/a (critical 10.0)
- [CVE-2004-0600](https://insights.sbomify.com/CVE-2004-0600/): Memory corruption in n/a (critical 10.0)
- [CVE-1999-0810](https://insights.sbomify.com/CVE-1999-0810/): Denial of service in n/a (critical 10.0)
- [CVE-1999-0182](https://insights.sbomify.com/CVE-1999-0182/): Memory corruption in n/a (critical 10.0)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2013-1863 and fix it if it is affected.

What it is: CVE-2013-1863 is a medium-severity missing authorization vulnerability in Samba Samba, published on 19 Mar 2013. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2013-1863 in the wild and no public exploit code.

Affected product: Samba Samba. 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-2013-1863/ (Markdown: https://insights.sbomify.com/CVE-2013-1863/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2013-1863
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2013-1863
- OSV: https://osv.dev/vulnerability/CVE-2013-1863

---
From sbomify Insights: https://insights.sbomify.com/CVE-2013-1863/
Summaries are generated and may contain mistakes; the official description above is the record.