# CVE-2020-10603: Command injection in WebAccess/NMS

> Remote attackers can inject system commands into WebAccess/NMS due to improper input sanitization, leading to potential code execution.

- **Severity:** High 8.8 (`CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 9 Apr 2020
- **Updated:** 4 Aug 2024
- **Also known as:** GHSA-5mwx-jr2x-3wj7

## What is CVE-2020-10603?

CVE-2020-10603 is a high-severity command injection vulnerability in WebAccess/NMS, published on 9 Apr 2020. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

WebAccess/NMS (versions prior to 3.0.2) does not properly sanitize user input and may allow an attacker to inject system commands remotely.

Weakness: CWE-78 (Improper Neutralization of Special Elements used in an OS Command)

## Which versions are affected by CVE-2020-10603?

It affects 1 product.


Products: Advantech Webaccess\/Nms.

## How do I fix CVE-2020-10603?

No fix has been published for CVE-2020-10603 yet. Limit exposure of the affected software until one is available.

## Is CVE-2020-10603 being exploited?

There is no known exploitation of CVE-2020-10603 in the wild and no public exploit code.

## Other vulnerabilities in WebAccess/NMS

- [CVE-2020-10621](https://insights.sbomify.com/CVE-2020-10621/): File upload in WebAccess/NMS (critical 9.8)
- [CVE-2020-10625](https://insights.sbomify.com/CVE-2020-10625/): Auth bypass in WebAccess/NMS (critical 9.8)
- [CVE-2020-10631](https://insights.sbomify.com/CVE-2020-10631/): Path traversal in WebAccess/NMS (critical 9.8)
- [CVE-2020-10619](https://insights.sbomify.com/CVE-2020-10619/): Path traversal in WebAccess/NMS (critical 9.1)
- [CVE-2020-10617](https://insights.sbomify.com/CVE-2020-10617/): SQL injection in WebAccess/NMS (high 7.5)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2020-10603 and fix it if it is affected.

What it is: CVE-2020-10603 is a high-severity command injection vulnerability in WebAccess/NMS, published on 9 Apr 2020. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2020-10603 in the wild and no public exploit code.

Affected product: WebAccess/NMS. 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-2020-10603/ (Markdown: https://insights.sbomify.com/CVE-2020-10603/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2020-10603
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2020-10603
- OSV: https://osv.dev/vulnerability/CVE-2020-10603

---
From sbomify Insights: https://insights.sbomify.com/CVE-2020-10603/
Summaries are generated and may contain mistakes; the official description above is the record.