# CVE-2020-3314: Cisco AMP for Endpoints Mac Connector Software File Scan Denial of Service Vulnerability

> An attacker can cause a denial of service in Cisco AMP for Endpoints Mac Connector by providing a crafted file that crashes the scan engine.

- **Severity:** Medium 6.1 (`CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:L/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:** 22 May 2020
- **Updated:** 15 Nov 2024
- **Also known as:** GHSA-qf9r-vh5p-wwvx

## What is CVE-2020-3314?

CVE-2020-3314 is a medium-severity denial of service vulnerability in Cisco AMP for Endpoints, published on 22 May 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

A vulnerability in the file scan process of Cisco AMP for Endpoints Mac Connector Software could cause the scan engine to crash during the scan of local files, resulting in a restart of the AMP Connector and a denial of service (DoS) condition of the Cisco AMP for Endpoints service. The vulnerability is due to insufficient input validation of specific file attributes. An attacker could exploit this vulnerability by providing a crafted file to a user of an affected system. A successful exploit could allow the attacker to cause the Cisco AMP for Endpoints service to crash, resulting in missed detection and logging of the potentially malicious file. Continued attempts to scan the file could result in a DoS condition of the Cisco AMP for Endpoints service.

Weakness: CWE-20 (Improper Input Validation)

## Which versions are affected by CVE-2020-3314?

It affects 1 product.


Products: Cisco Advanced Malware Protection for Endpoints.

## How do I fix CVE-2020-3314?

No fix has been published for CVE-2020-3314 yet. Limit exposure of the affected software until one is available.

## Is CVE-2020-3314 being exploited?

There is no known exploitation of CVE-2020-3314 in the wild and no public exploit code.

## Other vulnerabilities in Cisco AMP for Endpoints

- [CVE-2021-1280](https://insights.sbomify.com/CVE-2021-1280/): Cisco Advanced Malware Protection for Endpoints and Immunet for Windows DLL Hijacking Vulnerability (high 7.8)
- [CVE-2021-1386](https://insights.sbomify.com/CVE-2021-1386/): Path traversal in Cisco AMP for Endpoints (high 7.0)
- [CVE-2019-1932](https://insights.sbomify.com/CVE-2019-1932/): Cisco Advanced Malware Protection for Endpoints Windows Command Injection Vulnerability (medium 6.7)
- [CVE-2017-12312](https://insights.sbomify.com/CVE-2017-12312/): Path traversal in Cisco Immunet Antimalware Installer (medium 6.7)
- [CVE-2018-0397](https://insights.sbomify.com/CVE-2018-0397/): Denial of service in Cisco AMP for Endpoints Mac Connector unknown (medium 5.9)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2020-3314 and fix it if it is affected.

What it is: CVE-2020-3314 is a medium-severity denial of service vulnerability in Cisco AMP for Endpoints, published on 22 May 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-2020-3314 in the wild and no public exploit code.

Affected product: Cisco AMP for Endpoints. 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-2020-3314/ (Markdown: https://insights.sbomify.com/CVE-2020-3314/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2020-3314
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2020-3314
- OSV: https://osv.dev/vulnerability/CVE-2020-3314

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From sbomify Insights: https://insights.sbomify.com/CVE-2020-3314/
Summaries are generated and may contain mistakes; the official description above is the record.