# CVE-2017-9939: Auth bypass in SiPass integrated All versions before V2.70

> An attacker with network access can bypass authentication to perform administrative operations on the SiPass integrated server.

- **Severity:** Critical 9.8 (`CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 8 Aug 2017
- **Updated:** 5 Aug 2024
- **Also known as:** GHSA-h9jq-9xw6-6ch6

## What is CVE-2017-9939?

CVE-2017-9939 is a critical authentication bypass vulnerability in SiPass integrated All versions before V2.70, published on 8 Aug 2017. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

A vulnerability was discovered in Siemens SiPass integrated (All versions before V2.70) that could allow an attacker with network access to the SiPass integrated server to bypass the authentication mechanism and perform administrative operations.

Weakness: CWE-287 (Improper Authentication)

## Which versions are affected by CVE-2017-9939?

It affects 1 product.


Products: Siemens Sipass Integrated.

## How do I fix CVE-2017-9939?

No fix has been published for CVE-2017-9939 yet. Limit exposure of the affected software until one is available.

## Is CVE-2017-9939 being exploited?

There is no known exploitation of CVE-2017-9939 in the wild and no public exploit code.

## Other vulnerabilities in SiPass integrated All versions before V2.70

- [CVE-2012-5409](https://insights.sbomify.com/CVE-2012-5409/): Memory corruption in n/a (critical 10.0)
- [CVE-2021-44524](https://insights.sbomify.com/CVE-2021-44524/): Auth bypass in SiPass integrated V2.76 (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-2017-9939 and fix it if it is affected.

What it is: CVE-2017-9939 is a critical authentication bypass vulnerability in SiPass integrated All versions before V2.70, published on 8 Aug 2017. 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-2017-9939 in the wild and no public exploit code.

Affected product: SiPass integrated All versions before V2.70. 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-2017-9939/ (Markdown: https://insights.sbomify.com/CVE-2017-9939/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2017-9939
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2017-9939
- OSV: https://osv.dev/vulnerability/CVE-2017-9939

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From sbomify Insights: https://insights.sbomify.com/CVE-2017-9939/
Summaries are generated and may contain mistakes; the official description above is the record.