# Advisory on CVE-2023-45247

## Sensitive information disclosure and manipulation due to missing authorization

On October 9, 2023, Acronis disclosed a vulnerability in its Acronis Agent for Linux, Mac, and Windows. This vulnerability may allow an unauthorized attacker to view and manipulate antivirus and antimalware protection plans applied to a specific agent. [<mark style="color:blue;">CVE-2023-45247</mark>](https://nvd.nist.gov/vuln/detail/CVE-2023-45247) ID has been assigned to this vulnerability and classified as having high severity.

## Impacted IONOS Cloud products

| Product Ranges   | Product                                                                                        | Impacted | Mitigated      | Patch Status   |
| ---------------- | ---------------------------------------------------------------------------------------------- | -------- | -------------- | -------------- |
| Backup & Storage | [<mark style="color:blue;">Backup Service</mark>](/cloud/backup-and-storage/backup-service.md) | No       | Not applicable | Not applicable |
| Backup & Storage | Acronis Agent for Windows, Linux, and Mac                                                      | Yes      | Yes            | Done           |

## What action has IONOS Cloud taken to mitigate the severity?

IONOS and Acronis are in constant communication to gain a deeper understanding of this vulnerability and also ensure that:

* There are no signs of active exploitation resulting from the vulnerability. For more information, see [<mark style="color:blue;">Acronis Cyber Protect Cloud Agent update C23.10</mark>](https://security-advisory.acronis.com/updates/UPD-2310-1f44-6b41).
* The vulnerability does not allow unauthorized access to IONOS Cloud customers’ backup data. IONOS Cloud will publish the non-vulnerable versions of agents when Acronis shares the information, estimated to be by the end of November 2023.

## How can I get help?

If you have further questions or concerns about this vulnerability, contact [<mark style="color:blue;">IONOS Cloud Support</mark>](https://docs.ionos.com/cloud/support/general-information/contact-information).


---

# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://docs.ionos.com/cloud/security-safeguards/vulnerability-register/2023/cve-2023-45247.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.