# GHSA-5x4g-q5rc-36jp: Etcd pkg Insecure ciphers are allowed by default

> Etcd allows insecure TLS cipher suites by default, potentially weakening encryption; administrators should configure secure ciphers via flags.

- **Severity:** Not scored
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** Yes
- **Published:** 3 Feb 2024
- **Also known as:** GO-2024-2527

## What is GHSA-5x4g-q5rc-36jp?

GHSA-5x4g-q5rc-36jp is a vulnerability in go.etcd.io/etcd, published on 3 Feb 2024. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

### Vulnerability type
Cryptography

### Detail
The TLS ciphers list supported by etcd contains insecure cipher suites. Users can configure the desired ciphers using the “--cipher-suites” flag, and a default list of secure cipher suites is used if empty.

### Workarounds
By default, no action is required. If users want to specify cipher suites using the '--cipher-suites' flag, they should try not to specify insecure cipher suites. Please refer to the [security documentation](https://etcd.io/docs/v3.4/op-guide/security/).

### References
Find out more on this vulnerability in the [security audit report](https://github.com/etcd-io/etcd/blob/main/security/SECURITY_AUDIT.pdf)

### For more information
If you have any questions or comments about this advisory:
* Contact the [etcd security committee](https://github.com/etcd-io/etcd/blob/main/security/security-release-process.md#product-security-committee-psc)

## Which versions are affected by GHSA-5x4g-q5rc-36jp?

5 open source packages ship an affected version, including go.etcd.io/etcd/client/pkg/v3 and go.etcd.io/etcd.


| Package | Ecosystem | Affected | Fixed in |
| --- | --- | --- | --- |
| `go.etcd.io/etcd/client/pkg/v3` | Go | All versions | 3.3.23 |
| `go.etcd.io/etcd/client/pkg/v3` | Go | All versions | 3.3.23 |
| `go.etcd.io/etcd/client/pkg/v3` | Go | From 3.4.0-rc.0 | 3.4.10 |
| `go.etcd.io/etcd/client/pkg/v3` | Go | From 3.4.0-rc.0 | 3.4.10 |
| `go.etcd.io/etcd` | Go | All versions | 0.5.0-alpha.5.0.20221102000833-1f054980bc27 |

## How do I fix GHSA-5x4g-q5rc-36jp?

Upgrade go.etcd.io/etcd/client/pkg/v3 to a fixed version for your release line: 3.3.23 or 3.4.10.

## Is GHSA-5x4g-q5rc-36jp being exploited?

There is no known exploitation of GHSA-5x4g-q5rc-36jp in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for GHSA-5x4g-q5rc-36jp and fix it if it is affected.

What it is: GHSA-5x4g-q5rc-36jp is a vulnerability in go.etcd.io/etcd, published on 3 Feb 2024. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: There is no known exploitation of GHSA-5x4g-q5rc-36jp in the wild and no public exploit code.

Affected packages and fixed versions:
- go.etcd.io/etcd/client/pkg/v3 (Go): affected all versions; fixed in 3.3.23
- go.etcd.io/etcd/client/pkg/v3 (Go): affected all versions; fixed in 3.3.23
- go.etcd.io/etcd/client/pkg/v3 (Go): affected from 3.4.0-rc.0; fixed in 3.4.10
- go.etcd.io/etcd/client/pkg/v3 (Go): affected from 3.4.0-rc.0; fixed in 3.4.10
- go.etcd.io/etcd (Go): affected all versions; fixed in 0.5.0-alpha.5.0.20221102000833-1f054980bc27

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/GHSA-5x4g-q5rc-36jp/ (Markdown: https://insights.sbomify.com/GHSA-5x4g-q5rc-36jp/index.md)
```

## Sources

- OSV: https://osv.dev/vulnerability/GHSA-5x4g-q5rc-36jp

---
From sbomify Insights: https://insights.sbomify.com/GHSA-5x4g-q5rc-36jp/
Summaries are generated and may contain mistakes; the official description above is the record.