# CVE-2023-36655: Auth bypass in n/a

> Remote attackers can bypass account blocking restrictions in ProLion CryptoSpike by exploiting case-insensitive username matching during login.

- **Severity:** Critical 9.8 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 6 Dec 2023
- **Updated:** 10 Oct 2024
- **Also known as:** GHSA-g73w-69mw-5w4x

## What is CVE-2023-36655?

CVE-2023-36655 is a critical authentication bypass vulnerability in n/a, published on 6 Dec 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

The login REST API in ProLion CryptoSpike 3.0.15P2 (when LDAP or Active Directory is used as the users store) allows a remote blocked user to login and obtain an authentication token by specifying a username with different uppercase/lowercase character combination.

Weakness: CWE-287 (Improper Authentication)

## Which versions are affected by CVE-2023-36655?

It affects 1 product.


Products: Prolion Cryptospike.

## How do I fix CVE-2023-36655?

No fix has been published for CVE-2023-36655 yet. Limit exposure of the affected software until one is available.

## Is CVE-2023-36655 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-36655 exists.

## Other vulnerabilities in n/a

- [CVE-2023-36649](https://insights.sbomify.com/CVE-2023-36649/): Information disclosure in n/a (critical 9.1)
- [CVE-2023-36646](https://insights.sbomify.com/CVE-2023-36646/): Privilege escalation in n/a (high 8.8)
- [CVE-2023-36648](https://insights.sbomify.com/CVE-2023-36648/): Missing authorization in n/a (high 8.2)
- [CVE-2023-36647](https://insights.sbomify.com/CVE-2023-36647/): Hardcoded credentials in n/a (high 7.5)
- [CVE-2023-36650](https://insights.sbomify.com/CVE-2023-36650/): Code injection in n/a (high 7.2)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2023-36655 and fix it if it is affected.

What it is: CVE-2023-36655 is a critical authentication bypass vulnerability in n/a, published on 6 Dec 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-36655 exists.

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-2023-36655/ (Markdown: https://insights.sbomify.com/CVE-2023-36655/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2023-36655
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2023-36655
- OSV: https://osv.dev/vulnerability/CVE-2023-36655

---
From sbomify Insights: https://insights.sbomify.com/CVE-2023-36655/
Summaries are generated and may contain mistakes; the official description above is the record.