# CVE-2020-7319: Improper Access Control Vulnerability in ENS for Windows

> Local attackers can read restricted files by manipulating symbolic links to redirect McAfee Endpoint Security file operations.

- **Severity:** High 8.8 (`CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/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:** 9 Sep 2020
- **Updated:** 16 Sep 2024
- **Also known as:** GHSA-3997-6wvq-mg36

## What is CVE-2020-7319?

CVE-2020-7319 is a high-severity path traversal vulnerability in McAfee LLC Endpoint Security for Windows, published on 9 Sep 2020. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

Improper Access Control vulnerability in McAfee Endpoint Security (ENS) for Windows prior to 10.7.0 September 2020 Update allows local users to access files which the user otherwise would not have access to via manipulating symbolic links to redirect McAfee file operations to an unintended file.

Weakness: CWE-59 (Improper Link Resolution Before File Access)

## Which versions are affected by CVE-2020-7319?

It affects 1 product.


Products: Mcafee Endpoint Security.

## How do I fix CVE-2020-7319?

No fix has been published for CVE-2020-7319 yet. Limit exposure of the affected software until one is available.

## Is CVE-2020-7319 being exploited?

There is no known exploitation of CVE-2020-7319 in the wild and no public exploit code.

## Other vulnerabilities in McAfee LLC Endpoint Security for Windows

- [CVE-2020-7264](https://insights.sbomify.com/CVE-2020-7264/): Privilege Escalation vulnerability through symbolic links in ENS for Windows (high 8.8)
- [CVE-2020-7265](https://insights.sbomify.com/CVE-2020-7265/): Privilege Escalation vulnerability through symbolic links in ENSM (high 8.8)
- [CVE-2019-3582](https://insights.sbomify.com/CVE-2019-3582/): McAfee Endpoint Security updates fix a privilege escalation vulnerability (high 8.6)
- [CVE-2020-7257](https://insights.sbomify.com/CVE-2020-7257/): Privilege Escalation vulnerability through Symbolic links in ENS (high 8.4)
- [CVE-2021-23882](https://insights.sbomify.com/CVE-2021-23882/): Improper Access Control in the ENS installer (high 8.2)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2020-7319 and fix it if it is affected.

What it is: CVE-2020-7319 is a high-severity path traversal vulnerability in McAfee LLC Endpoint Security for Windows, published on 9 Sep 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-2020-7319 in the wild and no public exploit code.

Affected product: McAfee LLC Endpoint Security 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-2020-7319/ (Markdown: https://insights.sbomify.com/CVE-2020-7319/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2020-7319
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2020-7319
- OSV: https://osv.dev/vulnerability/CVE-2020-7319

---
From sbomify Insights: https://insights.sbomify.com/CVE-2020-7319/
Summaries are generated and may contain mistakes; the official description above is the record.