# CVE-2022-27221: Information disclosure in SINEMA Remote Connect Server

> An attacker can recover plaintext secrets via a BREACH attack by observing response length differences in HTTP requests.

- **Severity:** Medium 5.9 (`CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N/E:P/RL:O/RC:C`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 14 Jun 2022
- **Updated:** 21 Apr 2025
- **Also known as:** GHSA-m24w-qfh4-j8m4

## What is CVE-2022-27221?

CVE-2022-27221 is a medium-severity vulnerability in Siemens Sinema Remote Connect Server, published on 14 Jun 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

A vulnerability has been identified in SINEMA Remote Connect Server (All versions < V3.1). An attacker in machine-in-the-middle could obtain plaintext secret values by observing length differences during a series of guesses in which a string in an HTTP request URL potentially matches an unknown string in an HTTP response body, aka a "BREACH" attack.

Weakness: CWE-203 (Observable Discrepancy)

## Which versions are affected by CVE-2022-27221?

It affects 1 product.


Products: Siemens Sinema Remote Connect Server.

## How do I fix CVE-2022-27221?

No fix has been published for CVE-2022-27221 yet. Limit exposure of the affected software until one is available.

## Is CVE-2022-27221 being exploited?

There is no known exploitation of CVE-2022-27221 in the wild and no public exploit code.

## Other vulnerabilities in Siemens Sinema Remote Connect Server

- [CVE-2022-32257](https://insights.sbomify.com/CVE-2022-32257/): Missing authorization in SINEMA Remote Connect Server (critical 9.8)
- [CVE-2019-13918](https://insights.sbomify.com/CVE-2019-13918/): Auth bypass in SINEMA Remote Connect Server (critical 9.8)
- [CVE-2024-39872](https://insights.sbomify.com/CVE-2024-39872/): Privilege escalation in SINEMA Remote Connect Server (critical 9.3)
- [CVE-2022-32251](https://insights.sbomify.com/CVE-2022-32251/): Missing authorization in SINEMA Remote Connect Server (high 8.8)
- [CVE-2022-32262](https://insights.sbomify.com/CVE-2022-32262/): Command injection in SINEMA Remote Connect Server (high 8.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2022-27221 and fix it if it is affected.

What it is: CVE-2022-27221 is a medium-severity vulnerability in Siemens Sinema Remote Connect Server, published on 14 Jun 2022. 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-2022-27221 in the wild and no public exploit code.

Affected product: Siemens Sinema Remote Connect Server. 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-2022-27221/ (Markdown: https://insights.sbomify.com/CVE-2022-27221/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2022-27221
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2022-27221
- OSV: https://osv.dev/vulnerability/CVE-2022-27221

---
From sbomify Insights: https://insights.sbomify.com/CVE-2022-27221/
Summaries are generated and may contain mistakes; the official description above is the record.