# CVE-2012-1012: Missing authorization in n/a

> Remote authenticated administrators can improperly read or modify string attributes in MIT Kerberos 5 due to insufficient access restrictions on kadmin operations.

- **Severity:** Medium 5.5 (`AV:N/AC:L/Au:S/C:P/I:P/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** An administrator
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** Yes
- **Published:** 7 Jun 2012
- **Updated:** 17 Sep 2024
- **Also known as:** DEBIAN-CVE-2012-1012, GHSA-ww39-4grx-mfvf

## What is CVE-2012-1012?

CVE-2012-1012 is a medium-severity missing authorization vulnerability in Mit Kerberos 5, published on 7 Jun 2012. An attacker needs administrator access to exploit it, with no action from the victim.

### Official description

server/server_stubs.c in the kadmin protocol implementation in MIT Kerberos 5 (aka krb5) 1.10 before 1.10.1 does not properly restrict access to (1) SET_STRING and (2) GET_STRINGS operations, which might allow remote authenticated administrators to modify or read string attributes by leveraging the global list privilege.

Weakness: CWE-264

## Which versions are affected by CVE-2012-1012?

It affects 1 product.


Products: Mit Kerberos 5.

## How do I fix CVE-2012-1012?

Upgrade to a fixed version.

## Is CVE-2012-1012 being exploited?

There is no known exploitation of CVE-2012-1012 in the wild and no public exploit code.

## Other vulnerabilities in Mit Kerberos 5

- [CVE-2011-0285](https://insights.sbomify.com/CVE-2011-0285/): Use after free in n/a (critical 10.0)
- [CVE-2008-0947](https://insights.sbomify.com/CVE-2008-0947/): Memory corruption in n/a (critical 10.0)
- [CVE-2007-5902](https://insights.sbomify.com/CVE-2007-5902/): Integer overflow in n/a (critical 10.0)
- [CVE-2007-4743](https://insights.sbomify.com/CVE-2007-4743/): Memory corruption in n/a (critical 10.0)
- [CVE-2007-3999](https://insights.sbomify.com/CVE-2007-3999/): Memory corruption in n/a (critical 10.0)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2012-1012 and fix it if it is affected.

What it is: CVE-2012-1012 is a medium-severity missing authorization vulnerability in Mit Kerberos 5, published on 7 Jun 2012. An attacker needs administrator access to exploit it, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2012-1012 in the wild and no public exploit code.

Affected product: Mit Kerberos 5. 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-2012-1012/ (Markdown: https://insights.sbomify.com/CVE-2012-1012/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2012-1012
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2012-1012
- OSV: https://osv.dev/vulnerability/CVE-2012-1012

---
From sbomify Insights: https://insights.sbomify.com/CVE-2012-1012/
Summaries are generated and may contain mistakes; the official description above is the record.