# CVE-2021-33695: Security feature bypass in SAP Cloud Connector

> SAP Cloud Connector accepts backend communications without sufficient certificate validation, allowing attackers to bypass security controls.

- **Severity:** Medium 6.8 (`CVSS:3.0/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Local or same network only
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 15 Sep 2021
- **Updated:** 3 Aug 2024
- **Also known as:** GHSA-4mf2-c3h2-mq3p

## What is CVE-2021-33695?

CVE-2021-33695 is a medium-severity vulnerability in SAP Cloud Connector, published on 15 Sep 2021. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

Potentially, SAP Cloud Connector, version - 2.0 communication with the backend is accepted without sufficient validation of the certificate.

Weakness: CWE-295 (Improper Certificate Validation), CWE-297 (Improper Validation of Certificate with Host Mismatch)

## Which versions are affected by CVE-2021-33695?

It affects 1 product.


Products: Sap Cloud Connector.

## How do I fix CVE-2021-33695?

No fix has been published for CVE-2021-33695 yet. Limit exposure of the affected software until one is available.

## Is CVE-2021-33695 being exploited?

There is no known exploitation of CVE-2021-33695 in the wild and no public exploit code.

## Other vulnerabilities in SAP Cloud Connector

- [CVE-2019-0246](https://insights.sbomify.com/CVE-2019-0246/): Missing authorization in SAP Cloud Connector (critical 9.8)
- [CVE-2019-0247](https://insights.sbomify.com/CVE-2019-0247/): Code injection in SAP Cloud Connector (critical 9.8)
- [CVE-2024-25642](https://insights.sbomify.com/CVE-2024-25642/): Improper Certificate Validation in SAP Cloud Connector (high 7.4)
- [CVE-2021-33694](https://insights.sbomify.com/CVE-2021-33694/): Cross-site scripting in SAP Cloud Connector (medium 5.9)
- [CVE-2021-33693](https://insights.sbomify.com/CVE-2021-33693/): Code injection in SAP Cloud Connector (medium 5.7)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2021-33695 and fix it if it is affected.

What it is: CVE-2021-33695 is a medium-severity vulnerability in SAP Cloud Connector, published on 15 Sep 2021. It can only be exploited from the same machine or local network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2021-33695 in the wild and no public exploit code.

Affected product: SAP Cloud Connector. 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-2021-33695/ (Markdown: https://insights.sbomify.com/CVE-2021-33695/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2021-33695
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2021-33695
- OSV: https://osv.dev/vulnerability/CVE-2021-33695

---
From sbomify Insights: https://insights.sbomify.com/CVE-2021-33695/
Summaries are generated and may contain mistakes; the official description above is the record.