# CVE-2020-29020: Reject Remote Management via Cellular UPLINK2

> Remote attackers can access the web UI from the internet using configured credentials due to improper access control in Secomea SiteManager.

- **Severity:** Critical 9.1 (`CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** An administrator
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 5 Mar 2021
- **Updated:** 16 Sep 2024
- **Also known as:** GHSA-9pq7-49qc-7557

## What is CVE-2020-29020?

CVE-2020-29020 is a critical missing authorization vulnerability in Secomea SiteManager, published on 5 Mar 2021. An attacker needs administrator access to exploit it, with no action from the victim.

### Official description

Improper Access Control vulnerability in web service of Secomea SiteManager allows remote attacker to access the web UI from the internet using the configured credentials. This issue affects: Secomea SiteManager All versions prior to 9.4.620527004 on Hardware.

Weakness: CWE-863 (Incorrect Authorization), CWE-284 (Improper Access Control)

## Which versions are affected by CVE-2020-29020?

It affects 1 product.


Products: Secomea Sitemanager Firmware.

## How do I fix CVE-2020-29020?

No fix has been published for CVE-2020-29020 yet. Limit exposure of the affected software until one is available.

## Is CVE-2020-29020 being exploited?

There is no known exploitation of CVE-2020-29020 in the wild and no public exploit code.

## Other vulnerabilities in Secomea SiteManager

- [CVE-2021-32003](https://insights.sbomify.com/CVE-2021-32003/): Configuration service port remains open 10 minutes after reboot even when already provisioned (high 8.0)
- [CVE-2021-32002](https://insights.sbomify.com/CVE-2021-32002/): SiteManager troubleshooter allows access without authentication from local network (medium 4.3)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2020-29020 and fix it if it is affected.

What it is: CVE-2020-29020 is a critical missing authorization vulnerability in Secomea SiteManager, published on 5 Mar 2021. An attacker needs administrator access to exploit it, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2020-29020 in the wild and no public exploit code.

Affected product: Secomea SiteManager. 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-2020-29020/ (Markdown: https://insights.sbomify.com/CVE-2020-29020/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2020-29020
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2020-29020
- OSV: https://osv.dev/vulnerability/CVE-2020-29020

---
From sbomify Insights: https://insights.sbomify.com/CVE-2020-29020/
Summaries are generated and may contain mistakes; the official description above is the record.