# CVE-2024-23674: Auth bypass in n/a

> Man-in-the-middle attackers can bypass authentication and extract personal data from German eID cards via spoofing, requiring a modified client environment.

- **Severity:** Critical 9.6 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H`)
- **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:** 15 Feb 2024
- **Updated:** 6 Nov 2024
- **Also known as:** GHSA-2c83-rhjj-cjg4

## What is CVE-2024-23674?

CVE-2024-23674 is a critical authentication bypass vulnerability in n/a, published on 15 Feb 2024. 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

The Online-Ausweis-Funktion eID scheme in the German National Identity card through 2024-02-15 allows authentication bypass by spoofing. A man-in-the-middle attacker can assume a victim's identify for access to government, medical, and financial resources, and can also extract personal data from the card, aka the "sPACE (Spoofing Password Authenticated Connection Establishment)" issue. This occurs because of a combination of factors, such as insecure PIN entry (for basic readers) and eid:// deeplinking. The victim must be using a modified eID kernel, which may occur if the victim is tricked into installing a fake version of an official app. NOTE: the BSI position is "ensuring a secure operational environment at the client side is an obligation of the ID card owner."

Weakness: CWE-290 (Authentication Bypass by Spoofing)

## Which versions are affected by CVE-2024-23674?


## How do I fix CVE-2024-23674?

No fix has been published for CVE-2024-23674 yet. Limit exposure of the affected software until one is available.

## Is CVE-2024-23674 being exploited?

There is no known exploitation of CVE-2024-23674 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2024-23674 and fix it if it is affected.

What it is: CVE-2024-23674 is a critical authentication bypass vulnerability in n/a, published on 15 Feb 2024. 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-2024-23674 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-2024-23674/ (Markdown: https://insights.sbomify.com/CVE-2024-23674/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2024-23674
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2024-23674
- OSV: https://osv.dev/vulnerability/CVE-2024-23674

---
From sbomify Insights: https://insights.sbomify.com/CVE-2024-23674/
Summaries are generated and may contain mistakes; the official description above is the record.