# CVE-2017-15326: Weak cryptography in DBS3900 TDD LTE

> An unauthenticated remote attacker can crack encrypted data due to insecure SSL/TLS algorithms, causing information leakage in Huawei LTE base stations.

- **Severity:** Medium 4.3 (`CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** A user has to click or open something
- **Fix available:** No
- **Published:** 23 Mar 2018
- **Updated:** 16 Sep 2024
- **Also known as:** GHSA-65pc-vpgq-hrgm

## What is CVE-2017-15326?

CVE-2017-15326 is a medium-severity vulnerability in Huawei Technologies Co., Ltd. DBS3900 TDD LTE, published on 23 Mar 2018. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

### Official description

DBS3900 TDD LTE V100R003C00, V100R004C10 have a weak encryption algorithm security vulnerability. DBS3900 TDD LTE supports SSL/TLS protocol negotiation using insecure encryption algorithms. If an insecure encryption algorithm is negotiated in the communication, an unauthenticated remote attacker can exploit this vulnerability to crack the encrypted data and cause information leakage.

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

## Which versions are affected by CVE-2017-15326?

It affects 1 product.


Products: Huawei Dbs3900 Tdd Lte Firmware.

## How do I fix CVE-2017-15326?

No fix has been published for CVE-2017-15326 yet. Limit exposure of the affected software until one is available.

## Is CVE-2017-15326 being exploited?

There is no known exploitation of CVE-2017-15326 in the wild and no public exploit code.

## Other vulnerabilities in Huawei Technologies Co., Ltd. DBS3900 TDD LTE

- [CVE-2019-19413](https://insights.sbomify.com/CVE-2019-19413/): Integer overflow in CloudEngine 12800;CloudEngine 5800;CloudEngine 6800;CloudEngine 7800;DBS3900 TDD LTE;DP300;RP200;TE30;TE40;TE50;TE60 (high 7.5)
- [CVE-2019-19414](https://insights.sbomify.com/CVE-2019-19414/): Integer overflow in CloudEngine 12800;CloudEngine 5800;CloudEngine 6800;CloudEngine 7800;DBS3900 TDD LTE;DP300;RP200;TE30;TE40;TE50;TE60 (high 7.5)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2017-15326 and fix it if it is affected.

What it is: CVE-2017-15326 is a medium-severity vulnerability in Huawei Technologies Co., Ltd. DBS3900 TDD LTE, published on 23 Mar 2018. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Exploitation: There is no known exploitation of CVE-2017-15326 in the wild and no public exploit code.

Affected product: Huawei Technologies Co., Ltd. DBS3900 TDD LTE. 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-2017-15326/ (Markdown: https://insights.sbomify.com/CVE-2017-15326/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2017-15326
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2017-15326
- OSV: https://osv.dev/vulnerability/CVE-2017-15326

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From sbomify Insights: https://insights.sbomify.com/CVE-2017-15326/
Summaries are generated and may contain mistakes; the official description above is the record.