# CVE-2020-5770: Cross-site request forgery in Teltonika Gateway TRB245

> A remote attacker can perform sensitive actions on Teltonika TRB245 gateways by tricking users into clicking a crafted link.

- **Severity:** High 8.8 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:R/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:** A user has to click or open something
- **Fix available:** No
- **Published:** 3 Aug 2020
- **Updated:** 4 Aug 2024
- **Also known as:** GHSA-2fj3-jhcw-972x

## What is CVE-2020-5770?

CVE-2020-5770 is a high-severity vulnerability in Teltonika Gateway TRB245, published on 3 Aug 2020. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

### Official description

Cross-site request forgery in Teltonika firmware TRB2_R_00.02.04.01 allows a remote attacker to perform sensitive application actions by tricking legitimate users into clicking a crafted link.

Weakness: CWE-352 (Cross-Site Request Forgery)

## Which versions are affected by CVE-2020-5770?

It affects 1 product.


Products: Teltonika-Networks Trb245 Firmware.

## How do I fix CVE-2020-5770?

No fix has been published for CVE-2020-5770 yet. Limit exposure of the affected software until one is available.

## Is CVE-2020-5770 being exploited?

There is no known exploitation of CVE-2020-5770 in the wild and no public exploit code.

## Other vulnerabilities in Teltonika Gateway TRB245

- [CVE-2020-5786](https://insights.sbomify.com/CVE-2020-5786/): Cross-site request forgery in Teltonika Gateway TRB245 (high 8.8)
- [CVE-2020-5773](https://insights.sbomify.com/CVE-2020-5773/): Privilege escalation in Teltonika Gateway TRB245 (high 8.8)
- [CVE-2020-5771](https://insights.sbomify.com/CVE-2020-5771/): Privilege escalation in Teltonika Gateway TRB245 (high 7.5)
- [CVE-2020-5772](https://insights.sbomify.com/CVE-2020-5772/): File upload in Teltonika Gateway TRB245 (high 7.5)
- [CVE-2020-5784](https://insights.sbomify.com/CVE-2020-5784/): Server-side request forgery in Teltonika Gateway TRB245 (medium 6.5)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2020-5770 and fix it if it is affected.

What it is: CVE-2020-5770 is a high-severity vulnerability in Teltonika Gateway TRB245, published on 3 Aug 2020. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Exploitation: There is no known exploitation of CVE-2020-5770 in the wild and no public exploit code.

Affected product: Teltonika Gateway TRB245. 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-2020-5770/ (Markdown: https://insights.sbomify.com/CVE-2020-5770/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2020-5770
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2020-5770
- OSV: https://osv.dev/vulnerability/CVE-2020-5770

---
From sbomify Insights: https://insights.sbomify.com/CVE-2020-5770/
Summaries are generated and may contain mistakes; the official description above is the record.