# CVE-2020-9751: Code injection in Naver Cloud Explorer

> Attackers can execute arbitrary code by tricking the application into downloading and running malicious files during the upgrade process.

- **Severity:** Critical 9.1 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/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:** 3 Mar 2020
- **Updated:** 4 Aug 2024
- **Also known as:** GHSA-qcq2-v7h2-9wvh

## What is CVE-2020-9751?

CVE-2020-9751 is a critical code injection vulnerability in Naver Cloud Explorer, published on 3 Mar 2020. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

Naver Cloud Explorer before 2.2.2.11 allows the system to download an arbitrary file from the attacker's server and execute it during the upgrade.

Weakness: CWE-494 (Download of Code Without Integrity Check)

## Which versions are affected by CVE-2020-9751?

It affects 1 product.


Products: Naver Cloud Explorer.

## How do I fix CVE-2020-9751?

No fix has been published for CVE-2020-9751 yet. Limit exposure of the affected software until one is available.

## Is CVE-2020-9751 being exploited?

There is no known exploitation of CVE-2020-9751 in the wild and no public exploit code.

## Other vulnerabilities in Naver Cloud Explorer

- [CVE-2020-9752](https://insights.sbomify.com/CVE-2020-9752/): Path traversal in Naver Cloud Explorer (critical 9.8)
- [CVE-2022-24077](https://insights.sbomify.com/CVE-2022-24077/): Privilege escalation in NAVER Cloud Explorer Beta (high 7.8)
- [CVE-2019-13156](https://insights.sbomify.com/CVE-2019-13156/): Memory corruption in NDrive (high 7.5)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2020-9751 and fix it if it is affected.

What it is: CVE-2020-9751 is a critical code injection vulnerability in Naver Cloud Explorer, published on 3 Mar 2020. 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-2020-9751 in the wild and no public exploit code.

Affected product: Naver Cloud Explorer. 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-2020-9751/ (Markdown: https://insights.sbomify.com/CVE-2020-9751/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2020-9751
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2020-9751
- OSV: https://osv.dev/vulnerability/CVE-2020-9751

---
From sbomify Insights: https://insights.sbomify.com/CVE-2020-9751/
Summaries are generated and may contain mistakes; the official description above is the record.