# CVE-2013-4762: Auth bypass in n/a

> Remote attackers can hijack user sessions in Puppet Enterprise by reusing old session IDs after logout, leading to account takeover.

- **Severity:** Medium 5.8 (`AV:N/AC:M/Au:N/C:P/I:P/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:** 20 Aug 2013
- **Updated:** 16 Sep 2024
- **Also known as:** GHSA-r8f5-gf56-vhr8

## What is CVE-2013-4762?

CVE-2013-4762 is a medium-severity authentication bypass vulnerability in Puppet Puppet Enterprise, published on 20 Aug 2013. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

Puppet Enterprise before 3.0.1 does not sufficiently invalidate a session when a user logs out, which might allow remote attackers to hijack sessions by obtaining an old session ID.

Weakness: CWE-20 (Improper Input Validation)

## Which versions are affected by CVE-2013-4762?

It affects 1 product.


Products: Puppet Puppet Enterprise.

## How do I fix CVE-2013-4762?

No fix has been published for CVE-2013-4762 yet. Limit exposure of the affected software until one is available.

## Is CVE-2013-4762 being exploited?

There is no known exploitation of CVE-2013-4762 in the wild and no public exploit code.

## Other vulnerabilities in Puppet Puppet Enterprise

- [CVE-2023-2530](https://insights.sbomify.com/CVE-2023-2530/): Privilege escalation in Puppet Enterprise (critical 9.8)
- [CVE-2019-10694](https://insights.sbomify.com/CVE-2019-10694/): Hardcoded credentials in Puppet Enterprise (critical 9.8)
- [CVE-2018-11749](https://insights.sbomify.com/CVE-2018-11749/): Information disclosure in Puppet Enterprise (critical 9.8)
- [CVE-2021-27020](https://insights.sbomify.com/CVE-2021-27020/): Other in Puppet Enterprise (high 8.8)
- [CVE-2015-5686](https://insights.sbomify.com/CVE-2015-5686/): Cross-site request forgery in n/a (high 8.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2013-4762 and fix it if it is affected.

What it is: CVE-2013-4762 is a medium-severity authentication bypass vulnerability in Puppet Puppet Enterprise, published on 20 Aug 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-2013-4762 in the wild and no public exploit code.

Affected product: Puppet Puppet Enterprise. 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-2013-4762/ (Markdown: https://insights.sbomify.com/CVE-2013-4762/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2013-4762
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2013-4762
- OSV: https://osv.dev/vulnerability/CVE-2013-4762

---
From sbomify Insights: https://insights.sbomify.com/CVE-2013-4762/
Summaries are generated and may contain mistakes; the official description above is the record.