# CVE-2021-29003: Command injection in n/a

> Remote attackers can execute arbitrary code on Genexis PLATINUM 4410 devices via shell metacharacters in the sys_config_valid.xgi endpoint.

- **Severity:** Critical 9.8 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 13 Apr 2021
- **Updated:** 3 Aug 2024
- **Also known as:** GHSA-m43v-j8fp-7vjj

## What is CVE-2021-29003?

CVE-2021-29003 is a critical command injection vulnerability in n/a, published on 13 Apr 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

Genexis PLATINUM 4410 2.1 P4410-V2-1.28 devices allow remote attackers to execute arbitrary code via shell metacharacters to sys_config_valid.xgi, as demonstrated by the sys_config_valid.xgi?exeshell=%60telnetd%20%26%60 URI.

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

## Which versions are affected by CVE-2021-29003?

It affects 1 product.


Products: Genexis Platinum 4410 Firmware.

## How do I fix CVE-2021-29003?

No fix has been published for CVE-2021-29003 yet. Limit exposure of the affected software until one is available.

## Is CVE-2021-29003 being exploited?

There is no known exploitation of CVE-2021-29003 in the wild and no public exploit code.

Public exploit code:

- Genexis PLATINUM 4410 2.1 P4410-V2-1.28 - RCE (exploitdb)
- https://github.com/jaysharma786/CVE-2021-29003 (github_poc): https://github.com/jaysharma786/CVE-2021-29003

## Other vulnerabilities in n/a

- [CVE-2025-65883](https://insights.sbomify.com/CVE-2025-65883/): Auth bypass in n/a (high 8.4)
- [CVE-2020-28137](https://insights.sbomify.com/CVE-2020-28137/): Cross-site request forgery in n/a (medium 6.5)
- [CVE-2020-25988](https://insights.sbomify.com/CVE-2020-25988/): Information disclosure in n/a (medium 6.5)
- [CVE-2020-25015](https://insights.sbomify.com/CVE-2020-25015/): Cross-site request forgery in n/a (medium 6.5)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2021-29003 and fix it if it is affected.

What it is: CVE-2021-29003 is a critical command injection vulnerability in n/a, published on 13 Apr 2021. 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-2021-29003 in the wild and no public exploit code.

Affected product: n/a. 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-2021-29003/ (Markdown: https://insights.sbomify.com/CVE-2021-29003/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2021-29003
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2021-29003
- OSV: https://osv.dev/vulnerability/CVE-2021-29003

---
From sbomify Insights: https://insights.sbomify.com/CVE-2021-29003/
Summaries are generated and may contain mistakes; the official description above is the record.