# CVE-2011-4512: Other in n/a

> Remote attackers can inject HTTP headers and split responses in Siemens HMI web servers, potentially manipulating client interactions.

- **Severity:** Medium 5.0 (`AV:N/AC:L/Au:N/C:N/I:P/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 3 Feb 2012
- **Updated:** 16 Sep 2024
- **Also known as:** GHSA-m278-843w-6753

## What is CVE-2011-4512?

CVE-2011-4512 is a medium-severity vulnerability in n/a, published on 3 Feb 2012. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

CRLF injection vulnerability in the HMI web server in Siemens WinCC flexible 2004, 2005, 2007, and 2008 before SP3; WinCC V11 (aka TIA portal) before SP2 Update 1; the TP, OP, MP, Comfort Panels, and Mobile Panels SIMATIC HMI panels; WinCC V11 Runtime Advanced; and WinCC flexible Runtime allows remote attackers to inject arbitrary HTTP headers and conduct HTTP response splitting attacks via unspecified vectors.

Weakness: CWE-94 (Improper Control of Generation of Code)

## Which versions are affected by CVE-2011-4512?

It affects 5 products.


Products: Siemens Simatic Hmi Panels, Siemens Wincc, Siemens Wincc Flexible, Siemens Wincc Flexible Runtime, Siemens Wincc Runtime Advanced.

## How do I fix CVE-2011-4512?

No fix has been published for CVE-2011-4512 yet. Limit exposure of the affected software until one is available.

## Is CVE-2011-4512 being exploited?

There is no known exploitation of CVE-2011-4512 in the wild and no public exploit code.

## Other vulnerabilities in n/a

- [CVE-2011-4509](https://insights.sbomify.com/CVE-2011-4509/): Hardcoded credentials in n/a (critical 10.0)
- [CVE-2011-4513](https://insights.sbomify.com/CVE-2011-4513/): Code injection in n/a (critical 10.0)
- [CVE-2011-4514](https://insights.sbomify.com/CVE-2011-4514/): Auth bypass in n/a (critical 10.0)
- [CVE-2011-4508](https://insights.sbomify.com/CVE-2011-4508/): Auth bypass in n/a (critical 9.3)
- [CVE-2011-4875](https://insights.sbomify.com/CVE-2011-4875/): Memory corruption in n/a (critical 9.3)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2011-4512 and fix it if it is affected.

What it is: CVE-2011-4512 is a medium-severity vulnerability in n/a, published on 3 Feb 2012. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2011-4512 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-2011-4512/ (Markdown: https://insights.sbomify.com/CVE-2011-4512/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2011-4512
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2011-4512
- OSV: https://osv.dev/vulnerability/CVE-2011-4512

---
From sbomify Insights: https://insights.sbomify.com/CVE-2011-4512/
Summaries are generated and may contain mistakes; the official description above is the record.