# CVE-2021-43774: Weak cryptography in n/a

> Attackers with admin access can decrypt stored user passwords using weak ciphers like ROT13, leading to credential theft and potential account takeover.

- **Severity:** Medium 4.9 (`CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** An administrator
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 3 Mar 2022
- **Updated:** 4 Aug 2024
- **Also known as:** GHSA-7jxq-9xcf-r6rg

## What is CVE-2021-43774?

CVE-2021-43774 is a medium-severity vulnerability in n/a, published on 3 Mar 2022. An attacker needs administrator access to exploit it, with no action from the victim.

### Official description

A risky-algorithm issue was discovered on Fujifilm DocuCentre-VI C4471 1.8 devices. An attacker that obtained access to the administrative web interface of a printer (e.g., by using the default credentials) can download the address book file, which contains the list of users (domain users, FTP users, etc.) stored on the printer, together with their encrypted passwords. The passwords are protected by a weak cipher, such as ROT13, which requires minimal effort to instantly retrieve the original password, giving the attacker a list of valid domain or FTP usernames and passwords.

Weakness: CWE-327 (Use of a Broken or Risky Cryptographic Algorithm)

## Which versions are affected by CVE-2021-43774?

It affects 160 products.


Products: Fujifilm Apeosport-Iv 2060 Firmware, Fujifilm Apeosport-Iv 3060 Firmware, Fujifilm Apeosport-Iv 3065 Firmware, Fujifilm Apeosport-Iv 3070 Firmware, Fujifilm Apeosport-Iv 4070 Firmware, Fujifilm Apeosport-Iv 5070 Firmware, Fujifilm Apeosport-Iv 5080 Firmware, Fujifilm Apeosport-Iv 6080 Firmware, Fujifilm Apeosport-Iv 7080 Firmware, Fujifilm Apeosport-Iv C2270 Firmware, Fujifilm Apeosport-Iv C2275 Firmware, Fujifilm Apeosport-Iv C3370 Firmware, Fujifilm Apeosport-Iv C3375 Firmware, Fujifilm Apeosport-Iv C4430 Firmware, Fujifilm Apeosport-Iv C4470 Firmware, Fujifilm Apeosport-Iv C4475 Firmware, Fujifilm Apeosport-Iv C5570 Firmware, Fujifilm Apeosport-Iv C5575 Firmware, Fujifilm Apeosport-Iv C5580 Firmware, Fujifilm Apeosport-Iv C6680 Firmware and 140 more.

## How do I fix CVE-2021-43774?

No fix has been published for CVE-2021-43774 yet. Limit exposure of the affected software until one is available.

## Is CVE-2021-43774 being exploited?

There is no known exploitation of CVE-2021-43774 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2021-43774 and fix it if it is affected.

What it is: CVE-2021-43774 is a medium-severity vulnerability in n/a, published on 3 Mar 2022. An attacker needs administrator access to exploit it, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2021-43774 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-2021-43774/ (Markdown: https://insights.sbomify.com/CVE-2021-43774/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2021-43774
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2021-43774
- OSV: https://osv.dev/vulnerability/CVE-2021-43774

---
From sbomify Insights: https://insights.sbomify.com/CVE-2021-43774/
Summaries are generated and may contain mistakes; the official description above is the record.