# CVE-2011-4181: open build service information leak via unauthorized source access

> Remote attackers can access source files despite disabled source access settings, exposing proprietary code in Open Build Service.

- **Severity:** Medium 4.3 (`CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 11 Jun 2018
- **Updated:** 17 Sep 2024
- **Also known as:** GHSA-q8vv-4hq4-vm9q

## What is CVE-2011-4181?

CVE-2011-4181 is a medium-severity missing authorization vulnerability in SUSE open build service, published on 11 Jun 2018. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

A vulnerability in open build service allows remote attackers to gain access to source files even though source access is disabled. Affected releases are SUSE open build service up to and including version 2.1.15 (for 2.1) and before version 2.3.

Weakness: CWE-20 (Improper Input Validation), CWE-284 (Improper Access Control)

## Which versions are affected by CVE-2011-4181?

It affects 1 product.


Products: Opensuse Open Build Service.

## How do I fix CVE-2011-4181?

No fix has been published for CVE-2011-4181 yet. Limit exposure of the affected software until one is available.

## Is CVE-2011-4181 being exploited?

There is no known exploitation of CVE-2011-4181 in the wild and no public exploit code.

## Other vulnerabilities in SUSE open build service

- [CVE-2022-21949](https://insights.sbomify.com/CVE-2022-21949/): Multiple XXE vulnerabilities in OBS (high 8.8)
- [CVE-2013-3703](https://insights.sbomify.com/CVE-2013-3703/): No write permission check in change_role command (high 8.8)
- [CVE-2014-0594](https://insights.sbomify.com/CVE-2014-0594/): CSRF protection incorrectly disabled (high 8.8)
- [CVE-2021-36777](https://insights.sbomify.com/CVE-2021-36777/): login-proxy sends password to attacker-provided domain (high 8.1)
- [CVE-2011-3178](https://insights.sbomify.com/CVE-2011-3178/): openbuildservice webui code injection (high 8.1)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2011-4181 and fix it if it is affected.

What it is: CVE-2011-4181 is a medium-severity missing authorization vulnerability in SUSE open build service, published on 11 Jun 2018. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2011-4181 in the wild and no public exploit code.

Affected product: SUSE open build service. 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-2011-4181/ (Markdown: https://insights.sbomify.com/CVE-2011-4181/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2011-4181
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2011-4181
- OSV: https://osv.dev/vulnerability/CVE-2011-4181

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From sbomify Insights: https://insights.sbomify.com/CVE-2011-4181/
Summaries are generated and may contain mistakes; the official description above is the record.