# CVE-2020-27013: Missing authorization in Trend Micro Antivirus for Mac (Consumer)

> An attacker with low-privileged code execution can access a local webserver API to read and modify sensitive Trend Micro Antivirus for Mac data.

- **Severity:** Medium 4.4 (`CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Local or same network only
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 14 Oct 2020
- **Updated:** 4 Aug 2024
- **Also known as:** GHSA-9ff7-xv4q-f43g

## What is CVE-2020-27013?

CVE-2020-27013 is a medium-severity missing authorization vulnerability in Trend Micro Antivirus for Mac (Consumer), published on 14 Oct 2020. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

Trend Micro Antivirus for Mac 2020 (Consumer) contains a vulnerability in the product that occurs when a webserver is started that implements an API with several properties that can be read and written to allowing the attacker to gather and modify sensitive product and user data. An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability.

## Which versions are affected by CVE-2020-27013?

It affects 1 product.


Products: Trendmicro Antivirus.

## How do I fix CVE-2020-27013?

No fix has been published for CVE-2020-27013 yet. Limit exposure of the affected software until one is available.

## Is CVE-2020-27013 being exploited?

There is no known exploitation of CVE-2020-27013 in the wild and no public exploit code.

## Other vulnerabilities in Trend Micro Antivirus for Mac (Consumer)

- [CVE-2022-24671](https://insights.sbomify.com/CVE-2022-24671/): Privilege escalation in Trend Micro Antivirus for Mac (high 7.8)
- [CVE-2021-43771](https://insights.sbomify.com/CVE-2021-43771/): Privilege escalation in Trend Micro Antivirus for MAC 2021 (high 7.8)
- [CVE-2021-28648](https://insights.sbomify.com/CVE-2021-28648/): Privilege escalation in Trend Micro Antivirus for Mac (high 7.8)
- [CVE-2020-25776](https://insights.sbomify.com/CVE-2020-25776/): Privilege escalation in Trend Micro Antivirus for Mac (Consumer) (high 7.8)
- [CVE-2019-19695](https://insights.sbomify.com/CVE-2019-19695/): Path traversal in Trend Micro Antivirus for Mac (high 7.5)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2020-27013 and fix it if it is affected.

What it is: CVE-2020-27013 is a medium-severity missing authorization vulnerability in Trend Micro Antivirus for Mac (Consumer), published on 14 Oct 2020. It can only be exploited from the same machine or local network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2020-27013 in the wild and no public exploit code.

Affected product: Trend Micro Antivirus for Mac (Consumer). 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-2020-27013/ (Markdown: https://insights.sbomify.com/CVE-2020-27013/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2020-27013
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2020-27013
- OSV: https://osv.dev/vulnerability/CVE-2020-27013

---
From sbomify Insights: https://insights.sbomify.com/CVE-2020-27013/
Summaries are generated and may contain mistakes; the official description above is the record.