# CVE-2017-9553: Security feature bypass in n/a

> Remote attackers can bypass encryption protection in Synology DSM by crafting a specific version parameter, undermining data security mechanisms.

- **Severity:** High 7.5 (`CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 24 Jul 2017
- **Updated:** 5 Aug 2024
- **Also known as:** GHSA-mjrv-32hr-4pv5

## What is CVE-2017-9553?

CVE-2017-9553 is a high-severity vulnerability in Synology Diskstation Manager, published on 24 Jul 2017. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

A design flaw in SYNO.API.Encryption in Synology DiskStation Manager (DSM) before 6.1.3-15152 allows remote attackers to bypass the encryption protection mechanism via the crafted version parameter.

## Which versions are affected by CVE-2017-9553?

It affects 1 product.


Products: Synology Diskstation Manager.

## How do I fix CVE-2017-9553?

No fix has been published for CVE-2017-9553 yet. Limit exposure of the affected software until one is available.

## Is CVE-2017-9553 being exploited?

There is no known exploitation of CVE-2017-9553 in the wild and no public exploit code.

## Other vulnerabilities in Synology Diskstation Manager

- [CVE-2022-27624](https://insights.sbomify.com/CVE-2022-27624/): Memory corruption in DiskStation Manager (DSM) (critical 10.0)
- [CVE-2022-27625](https://insights.sbomify.com/CVE-2022-27625/): Memory corruption in DiskStation Manager (DSM) (critical 10.0)
- [CVE-2022-27626](https://insights.sbomify.com/CVE-2022-27626/): Race condition in DiskStation Manager (DSM) (critical 10.0)
- [CVE-2013-6955](https://insights.sbomify.com/CVE-2013-6955/): Path traversal in n/a (critical 10.0)
- [CVE-2022-22687](https://insights.sbomify.com/CVE-2022-22687/): Memory corruption in DiskStation Manager (DSM) (critical 9.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2017-9553 and fix it if it is affected.

What it is: CVE-2017-9553 is a high-severity vulnerability in Synology Diskstation Manager, published on 24 Jul 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-2017-9553 in the wild and no public exploit code.

Affected product: Synology Diskstation Manager. 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-2017-9553/ (Markdown: https://insights.sbomify.com/CVE-2017-9553/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2017-9553
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2017-9553
- OSV: https://osv.dev/vulnerability/CVE-2017-9553

---
From sbomify Insights: https://insights.sbomify.com/CVE-2017-9553/
Summaries are generated and may contain mistakes; the official description above is the record.