# CVE-2022-21827: Privilege escalation in Citrix Gateway Windows Plugin

> A local attacker can corrupt or delete files with SYSTEM privileges in the Citrix Gateway Plug-in for Windows.

- **Severity:** High 7.1 (`CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H`)
- **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:** 26 May 2022
- **Updated:** 3 Aug 2024
- **Also known as:** GHSA-h578-jrpj-wc47

## What is CVE-2022-21827?

CVE-2022-21827 is a high-severity vulnerability in Citrix Gateway Windows Plugin, published on 26 May 2022. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

An improper privilege vulnerability has been discovered in Citrix Gateway Plug-in for Windows (Citrix Secure Access for Windows) <21.9.1.2 what could allow an attacker who has gained local access to a computer with Citrix Gateway Plug-in installed, to corrupt or delete files as SYSTEM.

Weakness: CWE-269 (Improper Privilege Management)

## Which versions are affected by CVE-2022-21827?

It affects 1 product.


Products: Citrix Gateway Plug-In.

## How do I fix CVE-2022-21827?

No fix has been published for CVE-2022-21827 yet. Limit exposure of the affected software until one is available.

## Is CVE-2022-21827 being exploited?

There is no known exploitation of CVE-2022-21827 in the wild and no public exploit code.

## Other vulnerabilities in Citrix Gateway Windows Plugin

- [CVE-2020-8257](https://insights.sbomify.com/CVE-2020-8257/): Privilege escalation in Citrix Gateway Plug-in for Windows (critical 9.8)
- [CVE-2020-8258](https://insights.sbomify.com/CVE-2020-8258/): Privilege escalation in Citrix Gateway Plug-in for Windows (high 7.5)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2022-21827 and fix it if it is affected.

What it is: CVE-2022-21827 is a high-severity vulnerability in Citrix Gateway Windows Plugin, published on 26 May 2022. 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-2022-21827 in the wild and no public exploit code.

Affected product: Citrix Gateway Windows Plugin. 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-2022-21827/ (Markdown: https://insights.sbomify.com/CVE-2022-21827/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2022-21827
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2022-21827
- OSV: https://osv.dev/vulnerability/CVE-2022-21827

---
From sbomify Insights: https://insights.sbomify.com/CVE-2022-21827/
Summaries are generated and may contain mistakes; the official description above is the record.