# CVE-2020-13177: Privilege escalation in - PCoIP Standard Agent for Windows - PCoIP Graphics Agent for Windows

> An attacker can gain elevated privileges by placing a malicious binary in the system path due to unquoted search paths in the support bundler.

- **Severity:** High 7.8 (`CVSS:3.1/AV:L/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:** Local or same network only
- **Victim action needed:** A user has to click or open something
- **Fix available:** No
- **Published:** 11 Aug 2020
- **Updated:** 4 Aug 2024
- **Also known as:** GHSA-fxg8-w3hh-r94m

## What is CVE-2020-13177?

CVE-2020-13177 is a high-severity vulnerability in - PCoIP Standard Agent for Windows - PCoIP Graphics Agent for Windows, published on 11 Aug 2020. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.

### Official description

The support bundler in Teradici PCoIP Standard Agent for Windows and Graphics Agent for Windows versions prior to 20.04.1 and 20.07.0 does not use hard coded paths for certain Windows binaries, which allows an attacker to gain elevated privileges via execution of a malicious binary placed in the system path.

Weakness: CWE-427 (Uncontrolled Search Path Element)

## Which versions are affected by CVE-2020-13177?

It affects 2 products.


Products: Teradici Graphics Agent, Teradici Pcoip Standard Agent.

## How do I fix CVE-2020-13177?

No fix has been published for CVE-2020-13177 yet. Limit exposure of the affected software until one is available.

## Is CVE-2020-13177 being exploited?

There is no known exploitation of CVE-2020-13177 in the wild and no public exploit code.

## Other vulnerabilities in - PCoIP Standard Agent for Windows - PCoIP Graphics Agent for Windows

- [CVE-2020-13178](https://insights.sbomify.com/CVE-2020-13178/): Code injection in - PCoIP Standard Agent for Windows - PCoIP Graphics Agent for Windows (medium 6.7)
- [CVE-2020-13179](https://insights.sbomify.com/CVE-2020-13179/): Information disclosure in - PCoIP Standard Agent for Windows - PCoIP Graphics Agent for Windows (medium 5.5)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2020-13177 and fix it if it is affected.

What it is: CVE-2020-13177 is a high-severity vulnerability in - PCoIP Standard Agent for Windows - PCoIP Graphics Agent for Windows, published on 11 Aug 2020. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.
Exploitation: There is no known exploitation of CVE-2020-13177 in the wild and no public exploit code.

Affected product: - PCoIP Standard Agent for Windows - PCoIP Graphics Agent for Windows. 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-2020-13177/ (Markdown: https://insights.sbomify.com/CVE-2020-13177/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2020-13177
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2020-13177
- OSV: https://osv.dev/vulnerability/CVE-2020-13177

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From sbomify Insights: https://insights.sbomify.com/CVE-2020-13177/
Summaries are generated and may contain mistakes; the official description above is the record.