# CVE-2021-38947: Weak cryptography in Spectrum Copy Data Management

> Weak cryptographic algorithms in IBM Spectrum Copy Data Management allow attackers to decrypt highly sensitive information.

- **Severity:** Medium 5.9 (`CVSS:3.0/I:N/UI:N/PR:N/S:U/AC:H/A:N/C:H/AV:N/E:U/RL:O/RC:C`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 13 Dec 2021
- **Updated:** 16 Sep 2024
- **Also known as:** GHSA-vrmc-c625-vvf7

## What is CVE-2021-38947?

CVE-2021-38947 is a medium-severity vulnerability in IBM Spectrum Copy Data Management, published on 13 Dec 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

IBM Spectrum Copy Data Management 2.2.13 and earlier uses weaker than expected cryptographic algorithms that could allow an attacker to decrypt highly sensitive information. IBM X-Force ID: 211242.

Weakness: CWE-326 (Inadequate Encryption Strength)

## Which versions are affected by CVE-2021-38947?

It affects 1 product.


Products: Ibm Spectrum Copy Data Management.

## How do I fix CVE-2021-38947?

No fix has been published for CVE-2021-38947 yet. Limit exposure of the affected software until one is available.

## Is CVE-2021-38947 being exploited?

There is no known exploitation of CVE-2021-38947 in the wild and no public exploit code.

## Other vulnerabilities in IBM Spectrum Copy Data Management

- [CVE-2021-39065](https://insights.sbomify.com/CVE-2021-39065/): Command injection in Spectrum Copy Data Management (high 8.1)
- [CVE-2022-22354](https://insights.sbomify.com/CVE-2022-22354/): Denial of service in Spectrum Copy Data Management (medium 6.2)
- [CVE-2021-39053](https://insights.sbomify.com/CVE-2021-39053/): Information disclosure in Spectrum Copy Data Management (medium 5.9)
- [CVE-2021-39058](https://insights.sbomify.com/CVE-2021-39058/): Weak cryptography in Spectrum Copy Data Management (medium 5.9)
- [CVE-2021-39064](https://insights.sbomify.com/CVE-2021-39064/): Hardcoded credentials in Spectrum Copy Data Management (medium 5.9)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2021-38947 and fix it if it is affected.

What it is: CVE-2021-38947 is a medium-severity vulnerability in IBM Spectrum Copy Data Management, published on 13 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-2021-38947 in the wild and no public exploit code.

Affected product: IBM Spectrum Copy Data Management. 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-2021-38947/ (Markdown: https://insights.sbomify.com/CVE-2021-38947/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2021-38947
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2021-38947
- OSV: https://osv.dev/vulnerability/CVE-2021-38947

---
From sbomify Insights: https://insights.sbomify.com/CVE-2021-38947/
Summaries are generated and may contain mistakes; the official description above is the record.