# CVE-2013-5136: Information disclosure in n/a

> Remote attackers can sniff network traffic to obtain sensitive information during unintended cleartext VNC sessions due to missing authentication warnings.

- **Severity:** Medium 4.3 (`AV:N/AC:M/Au:N/C:P/I:N/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** A user has to click or open something
- **Fix available:** No
- **Published:** 24 Oct 2013
- **Updated:** 17 Sep 2024
- **Also known as:** GHSA-3v83-p792-64c4

## What is CVE-2013-5136?

CVE-2013-5136 is a medium-severity vulnerability in n/a, published on 24 Oct 2013. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

### Official description

Apple Remote Desktop before 3.7 does not properly use server authentication-type information during decisions about whether to present an unencrypted-connection warning message, which allows remote attackers to obtain sensitive information in opportunistic circumstances by sniffing the network during an unintended cleartext VNC session.

Weakness: CWE-200 (Exposure of Sensitive Information to an Unauthorized Actor)

## Which versions are affected by CVE-2013-5136?

It affects 1 product.


Products: Apple Apple Remote Desktop.

## How do I fix CVE-2013-5136?

No fix has been published for CVE-2013-5136 yet. Limit exposure of the affected software until one is available.

## Is CVE-2013-5136 being exploited?

There is no known exploitation of CVE-2013-5136 in the wild and no public exploit code.

## Other vulnerabilities in n/a

- [CVE-2004-0962](https://insights.sbomify.com/CVE-2004-0962/): Privilege escalation in n/a (critical 10.0)
- [CVE-2013-5135](https://insights.sbomify.com/CVE-2013-5135/): Memory corruption in n/a (high 7.5)
- [CVE-2006-4887](https://insights.sbomify.com/CVE-2006-4887/): Privilege escalation in n/a (high 7.2)
- [CVE-2012-0681](https://insights.sbomify.com/CVE-2012-0681/): Weak cryptography in n/a (medium 4.3)
- [CVE-2013-5229](https://insights.sbomify.com/CVE-2013-5229/): Security feature bypass in n/a (low 3.7)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2013-5136 and fix it if it is affected.

What it is: CVE-2013-5136 is a medium-severity vulnerability in n/a, published on 24 Oct 2013. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Exploitation: There is no known exploitation of CVE-2013-5136 in the wild and no public exploit code.

Affected product: n/a. 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-2013-5136/ (Markdown: https://insights.sbomify.com/CVE-2013-5136/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2013-5136
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2013-5136
- OSV: https://osv.dev/vulnerability/CVE-2013-5136

---
From sbomify Insights: https://insights.sbomify.com/CVE-2013-5136/
Summaries are generated and may contain mistakes; the official description above is the record.