# CVE-2019-0622: Auth bypass in Skype

> Attackers can elevate privileges by exploiting improper authentication request handling in Skype for Android.

- **Severity:** Medium 4.6 (`CVSS:3.0/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Local or same network only
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 8 Jan 2019
- **Updated:** 4 Aug 2024
- **Also known as:** GHSA-65j8-j9v8-cm3q

## What is CVE-2019-0622?

CVE-2019-0622 is a medium-severity authentication bypass vulnerability in Microsoft Skype, published on 8 Jan 2019. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

An elevation of privilege vulnerability exists when Skype for Andriod fails to properly handle specific authentication requests, aka "Skype for Android Elevation of Privilege Vulnerability." This affects Skype 8.35.

Weakness: CWE-287 (Improper Authentication)

## Which versions are affected by CVE-2019-0622?

It affects 1 product.


Products: Microsoft Skype.

## How do I fix CVE-2019-0622?

No fix has been published for CVE-2019-0622 yet. Limit exposure of the affected software until one is available.

## Is CVE-2019-0622 being exploited?

There is no known exploitation of CVE-2019-0622 in the wild and no public exploit code.

## Other vulnerabilities in Microsoft Skype

- [CVE-2017-6517](https://insights.sbomify.com/CVE-2017-6517/): Other in n/a (critical 9.8)
- [CVE-2017-9948](https://insights.sbomify.com/CVE-2017-9948/): Memory corruption in n/a (high 8.8)
- [CVE-2018-0594](https://insights.sbomify.com/CVE-2018-0594/): Privilege escalation in Skype for Windows (high 7.8)
- [CVE-2018-0595](https://insights.sbomify.com/CVE-2018-0595/): Privilege escalation in The installer of Skype for Windows (high 7.8)
- [CVE-2016-5720](https://insights.sbomify.com/CVE-2016-5720/): Path traversal in n/a (high 7.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2019-0622 and fix it if it is affected.

What it is: CVE-2019-0622 is a medium-severity authentication bypass vulnerability in Microsoft Skype, published on 8 Jan 2019. 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-2019-0622 in the wild and no public exploit code.

Affected product: Microsoft Skype. 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-2019-0622/ (Markdown: https://insights.sbomify.com/CVE-2019-0622/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2019-0622
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2019-0622
- OSV: https://osv.dev/vulnerability/CVE-2019-0622

---
From sbomify Insights: https://insights.sbomify.com/CVE-2019-0622/
Summaries are generated and may contain mistakes; the official description above is the record.