# CVE-2020-6776: CSRF in Bosch PRAESIDEO and Bosch PRAESENSA Management Interface

> An unauthenticated remote attacker can trick a victim into performing arbitrary actions with their privileges, such as modifying user accounts or system settings.

- **Severity:** High 8.8 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:R/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:** A user has to click or open something
- **Fix available:** No
- **Published:** 14 Jan 2021
- **Updated:** 17 Sep 2024
- **Also known as:** GHSA-97x9-ww3p-2gr4

## What is CVE-2020-6776?

CVE-2020-6776 is a high-severity vulnerability in Bosch PRAESENSA, published on 14 Jan 2021. 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

A vulnerability in the web-based management interface of Bosch PRAESIDEO until and including version 4.41 and Bosch PRAESENSA until and including version 1.10 allows an unauthenticated remote attacker to trigger actions on an affected system on behalf of another user (Cross-Site Request Forgery). This requires the victim to be tricked into clicking a malicious link or submitting a malicious form. A successful exploit allows the attacker to perform arbitrary actions with the privileges of the victim, e.g. creating and modifying user accounts, changing system configuration settings and cause DoS conditions. Note: For Bosch PRAESIDEO 4.31 and newer and Bosch PRAESENSA in all versions, the confidentiality impact is considered low because user credentials are not shown in the web interface.

Weakness: CWE-352 (Cross-Site Request Forgery)

## Which versions are affected by CVE-2020-6776?

It affects 2 products.


Products: Bosch Praesensa Firmware, Bosch Praesideo Firmware.

## How do I fix CVE-2020-6776?

No fix has been published for CVE-2020-6776 yet. Limit exposure of the affected software until one is available.

## Is CVE-2020-6776 being exploited?

There is no known exploitation of CVE-2020-6776 in the wild and no public exploit code.

## Other vulnerabilities in Bosch PRAESENSA

- [CVE-2020-6777](https://insights.sbomify.com/CVE-2020-6777/): Stored XSS in Bosch PRAESIDEO and Bosch PRAESENSA Management Interface (medium 4.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2020-6776 and fix it if it is affected.

What it is: CVE-2020-6776 is a high-severity vulnerability in Bosch PRAESENSA, published on 14 Jan 2021. 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-2020-6776 in the wild and no public exploit code.

Affected product: Bosch PRAESENSA. 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-2020-6776/ (Markdown: https://insights.sbomify.com/CVE-2020-6776/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2020-6776
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2020-6776
- OSV: https://osv.dev/vulnerability/CVE-2020-6776

---
From sbomify Insights: https://insights.sbomify.com/CVE-2020-6776/
Summaries are generated and may contain mistakes; the official description above is the record.