# CVE-2020-29023: CSV Formula Injection possible due to improper fields escaping in GateManager

> An authenticated administrator can inject malicious formulas into CSV reports, leading to arbitrary code execution on victims opening the file in spreadsheet software.

- **Severity:** Low 3.5 (`CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:L/I:L/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** An administrator
- **Attackable:** Over the internet
- **Victim action needed:** A user has to click or open something
- **Fix available:** No
- **Published:** 16 Feb 2021
- **Updated:** 17 Sep 2024
- **Also known as:** GHSA-fw85-97w2-fp5v

## What is CVE-2020-29023?

CVE-2020-29023 is a low-severity code injection vulnerability in Secomea GateManager, published on 16 Feb 2021. An attacker needs administrator access to exploit it, and only if a user opens a file or follows a link.

### Official description

Improper Encoding or Escaping of Output from CSV Report Generator of Secomea GateManager allows an authenticated administrator to generate a CSV file that may run arbitrary commands on a victim's computer when opened in a spreadsheet program (like Excel). This issue affects: Secomea GateManager all versions prior to 9.3.

Weakness: CWE-116 (Improper Encoding or Escaping of Output)

## Which versions are affected by CVE-2020-29023?

It affects 4 products.


Products: Secomea Gatemanager 4250 Firmware, Secomea Gatemanager 4260 Firmware, Secomea Gatemanager 8250 Firmware, Secomea Gatemanager 9250 Firmware.

## How do I fix CVE-2020-29023?

No fix has been published for CVE-2020-29023 yet. Limit exposure of the affected software until one is available.

## Is CVE-2020-29023 being exploited?

There is no known exploitation of CVE-2020-29023 in the wild and no public exploit code.

## Other vulnerabilities in Secomea GateManager

- [CVE-2020-29026](https://insights.sbomify.com/CVE-2020-29026/): Path traversal in GateManager (critical 9.0)
- [CVE-2022-25787](https://insights.sbomify.com/CVE-2022-25787/): GTA URLs issued by LMM WEB API may leak information (high 7.5)
- [CVE-2020-29031](https://insights.sbomify.com/CVE-2020-29031/): Insecure Direct Object Reference in GateManager WebUI can cause privilege escalation (high 7.1)
- [CVE-2021-32010](https://insights.sbomify.com/CVE-2021-32010/): Clients may connect to a GateManager with TLS 1.0 (medium 5.6)
- [CVE-2022-25782](https://insights.sbomify.com/CVE-2022-25782/): Insufficient privilege checks on object access and updates. (medium 5.4)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2020-29023 and fix it if it is affected.

What it is: CVE-2020-29023 is a low-severity code injection vulnerability in Secomea GateManager, published on 16 Feb 2021. An attacker needs administrator access to exploit it, and only if a user opens a file or follows a link.
Exploitation: There is no known exploitation of CVE-2020-29023 in the wild and no public exploit code.

Affected product: Secomea GateManager. 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-2020-29023/ (Markdown: https://insights.sbomify.com/CVE-2020-29023/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2020-29023
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2020-29023
- OSV: https://osv.dev/vulnerability/CVE-2020-29023

---
From sbomify Insights: https://insights.sbomify.com/CVE-2020-29023/
Summaries are generated and may contain mistakes; the official description above is the record.