# CVE-2021-42913: Information disclosure in n/a

> Unauthenticated attackers can view SMB user credentials in cleartext via HTML source code on Samsung SCX-6x55X printers.

- **Severity:** High 7.5 (`CVSS:3.1/AV:N/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:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 20 Dec 2021
- **Updated:** 4 Aug 2024
- **Also known as:** GHSA-4jp6-449x-6fgh

## What is CVE-2021-42913?

CVE-2021-42913 is a high-severity vulnerability in n/a, published on 20 Dec 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

The SyncThru Web Service on Samsung SCX-6x55X printers allows an attacker to gain access to a list of SMB users and cleartext passwords by reading the HTML source code. Authentication is not required.

Weakness: CWE-522 (Insufficiently Protected Credentials)

## Which versions are affected by CVE-2021-42913?

It affects 1 product.


Products: Samsung Syncthru Web Service.

## How do I fix CVE-2021-42913?

No fix has been published for CVE-2021-42913 yet. Limit exposure of the affected software until one is available.

## Is CVE-2021-42913 being exploited?

There is no known exploitation of CVE-2021-42913 in the wild and no public exploit code.

Public exploit code:

- Samsung Printer SCX-6X55X Improper Access Control (github_poc): https://github.com/kernel-cyber/CVE-2021-42913

## Other vulnerabilities in n/a

- [CVE-2018-14908](https://insights.sbomify.com/CVE-2018-14908/): Cross-site request forgery in n/a (high 8.8)
- [CVE-2021-35309](https://insights.sbomify.com/CVE-2021-35309/): Privilege escalation in n/a (high 7.5)
- [CVE-2019-7418](https://insights.sbomify.com/CVE-2019-7418/): Cross-site scripting in n/a (medium 6.1)
- [CVE-2019-7419](https://insights.sbomify.com/CVE-2019-7419/): Cross-site scripting in n/a (medium 6.1)
- [CVE-2019-7420](https://insights.sbomify.com/CVE-2019-7420/): Cross-site scripting in n/a (medium 6.1)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2021-42913 and fix it if it is affected.

What it is: CVE-2021-42913 is a high-severity vulnerability in n/a, published on 20 Dec 2021. 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-2021-42913 in the wild and no public exploit code.

Affected product: n/a. 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-2021-42913/ (Markdown: https://insights.sbomify.com/CVE-2021-42913/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2021-42913
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2021-42913
- OSV: https://osv.dev/vulnerability/CVE-2021-42913

---
From sbomify Insights: https://insights.sbomify.com/CVE-2021-42913/
Summaries are generated and may contain mistakes; the official description above is the record.