# CVE-2012-5409: Memory corruption in n/a

> Remote attackers can execute arbitrary code on Siemens SiPass integrated servers by sending crafted IOCP RPC messages over the network.

- **Severity:** Critical 10.0 (`AV:N/AC:L/Au:N/C:C/I:C/A:C`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 1 Nov 2012
- **Updated:** 6 Aug 2024
- **Also known as:** GHSA-q4x4-498h-293w

## What is CVE-2012-5409?

CVE-2012-5409 is a critical memory corruption vulnerability in n/a, published on 1 Nov 2012. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

AscoServer.exe in the server in Siemens SiPass integrated MP2.6 and earlier does not properly handle IOCP RPC messages received over an Ethernet network, which allows remote attackers to write data to any memory location and consequently execute arbitrary code via crafted messages, as demonstrated by an arbitrary pointer dereference attack or a buffer overflow attack.

Weakness: CWE-119 (Improper Restriction of Operations within the Bounds of a Memory Buffer)

## Which versions are affected by CVE-2012-5409?

It affects 1 product.


Products: Siemens Sipass Integrated.

## How do I fix CVE-2012-5409?

No fix has been published for CVE-2012-5409 yet. Limit exposure of the affected software until one is available.

## Is CVE-2012-5409 being exploited?

There is no known exploitation of CVE-2012-5409 in the wild and no public exploit code.

Public exploit code:

- SIEMENS Sipass Integrated 2.6 Ethernet Bus - Arbitrary Pointer Dereference (exploitdb)

## Other vulnerabilities in n/a

- [CVE-2021-44524](https://insights.sbomify.com/CVE-2021-44524/): Auth bypass in SiPass integrated V2.76 (critical 9.8)
- [CVE-2017-9939](https://insights.sbomify.com/CVE-2017-9939/): Auth bypass in SiPass integrated All versions before V2.70 (critical 9.8)
- [CVE-2021-44523](https://insights.sbomify.com/CVE-2021-44523/): Missing authorization in SiPass integrated V2.76 (critical 9.1)
- [CVE-2022-31812](https://insights.sbomify.com/CVE-2022-31812/): Memory corruption in SiPass integrated (high 8.7)
- [CVE-2017-9940](https://insights.sbomify.com/CVE-2017-9940/): Path traversal in SiPass integrated All versions before V2.70 (high 8.1)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2012-5409 and fix it if it is affected.

What it is: CVE-2012-5409 is a critical memory corruption vulnerability in n/a, published on 1 Nov 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-2012-5409 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-2012-5409/ (Markdown: https://insights.sbomify.com/CVE-2012-5409/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2012-5409
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2012-5409
- OSV: https://osv.dev/vulnerability/CVE-2012-5409

---
From sbomify Insights: https://insights.sbomify.com/CVE-2012-5409/
Summaries are generated and may contain mistakes; the official description above is the record.