---
title: "CVE-2011-5098\n    | Ubuntu"
description: Ubuntu is an open source software operating system that runs from the
  desktop, to the cloud, to all your internet connected things.
url: https://ubuntu.com/security/CVE-2011-5098?format=md
keywords: index, follow
---

# CVE-2011-5098

Publication date 8 August 2012

Last updated 24 July 2024

---

Ubuntu priority

**Medium**

[Why this priority?](https://ubuntu.com/security/cves/about#priority )

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## Description

chef-server-api/app/controllers/clients.rb in Chef Server in Chef before
0.9.20, and 0.10.x before 0.10.6, does not require administrative
privileges for creating admin clients, which allows remote authenticated
users to bypass intended access restrictions by leveraging read permission
for the validation key and executing a knife client create command with the
--admin option.

## Status

Show unmaintained releases

| Package | Ubuntu Release | Status |
| --- | --- | --- |
| chef | 13.10 saucy | Not affected |
| 13.04 raring | Not affected |
| 12.10 quantal | Not affected |
| 12.04 LTS precise | Not in release |
| 11.10 oneiric | Ignored end of life |
| 11.04 natty | Ignored end of life |
| 10.04 LTS lucid | Ignored end of life |
| 8.04 LTS hardy | Not in release |
| chef-server-api | 13.10 saucy | Not affected |
| 13.04 raring | Not affected |
| 12.10 quantal | Not affected |
| 12.04 LTS precise | Not in release |
| 11.10 oneiric | Not in release |
| 11.04 natty | Not in release |
| 10.04 LTS lucid | Not in release |
| 8.04 LTS hardy | Not in release |

---

* [How can I get the fixes?](https://ubuntu.com/security/cves/about#security)
* [What do statuses mean?](https://ubuntu.com/security/cves/about#statuses)
* [Patch details](https://ubuntu.com/security/CVE-2011-5098?format=md#patch-details)

### Patch details

For informational purposes only. We recommend not to cherry-pick updates. [How can I get the fixes?](https://ubuntu.com/security/cves/about#security)

| Package | Patch details |
| --- | --- |
| chef | * Upstream:   [33f0e9c](https://github.com/opscode/chef/commit/33f0e9c58bbf047e1b401a834f3abfe72d9a8947) |

## References

* [MITRE](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2011-5098)
* [NVD](https://nvd.nist.gov/vuln/detail/CVE-2011-5098)
* [Launchpad](https://launchpad.net/bugs/cve/CVE-2011-5098)
* [Debian](https://security-tracker.debian.org/tracker/CVE-2011-5098)

### Other references

* <https://www.cve.org/CVERecord?id=CVE-2011-5098>