# CVE-2017-10818: Hardcoded credentials in MaLion for Windows and Mac

> Hardcoded cryptographic key in MaLion allows attackers to alter connection settings and spoof the Relay Service.

- **Severity:** Critical 9.8 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 4 Aug 2017
- **Updated:** 5 Aug 2024
- **Also known as:** GHSA-mq8h-jv5c-736f

## What is CVE-2017-10818?

CVE-2017-10818 is a critical vulnerability in Intercom, Inc. MaLion for Windows and Mac, published on 4 Aug 2017. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

MaLion for Windows and Mac versions 3.2.1 to 5.2.1 uses a hardcoded cryptographic key which may allow an attacker to alter the connection settings of Terminal Agent and spoof the Relay Service.

Weakness: CWE-798 (Use of Hard-coded Credentials)

## Which versions are affected by CVE-2017-10818?

It affects 1 product.


Products: Intercom Malion.

## How do I fix CVE-2017-10818?

No fix has been published for CVE-2017-10818 yet. Limit exposure of the affected software until one is available.

## Is CVE-2017-10818 being exploited?

There is no known exploitation of CVE-2017-10818 in the wild and no public exploit code.

## Other vulnerabilities in Intercom, Inc. MaLion for Windows and Mac

- [CVE-2017-10816](https://insights.sbomify.com/CVE-2017-10816/): SQL injection in MaLion for Windows and Mac (critical 9.8)
- [CVE-2017-10817](https://insights.sbomify.com/CVE-2017-10817/): Auth bypass in MaLion for Windows and Mac (critical 9.8)
- [CVE-2017-10815](https://insights.sbomify.com/CVE-2017-10815/): Auth bypass in MaLion for Mac (high 8.1)
- [CVE-2017-10819](https://insights.sbomify.com/CVE-2017-10819/): Weak cryptography in MaLion for Mac (medium 5.9)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2017-10818 and fix it if it is affected.

What it is: CVE-2017-10818 is a critical vulnerability in Intercom, Inc. MaLion for Windows and Mac, published on 4 Aug 2017. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2017-10818 in the wild and no public exploit code.

Affected product: Intercom, Inc. MaLion for Windows and Mac. 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-2017-10818/ (Markdown: https://insights.sbomify.com/CVE-2017-10818/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2017-10818
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2017-10818
- OSV: https://osv.dev/vulnerability/CVE-2017-10818

---
From sbomify Insights: https://insights.sbomify.com/CVE-2017-10818/
Summaries are generated and may contain mistakes; the official description above is the record.