# CVE-2021-41232: Improper Neutralization of Special Elements used in an LDAP Query

> Attackers can inject LDAP queries via unescaped usernames in Thunderdome when LDAP authentication is enabled, potentially bypassing auth or reading data.

- **Severity:** High 8.1 (`CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:L/A:L`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** Yes
- **Published:** 2 Nov 2021
- **Updated:** 4 Aug 2024
- **Also known as:** GHSA-26cm-qrc6-mfgj, GO-2022-0939

## What is CVE-2021-41232?

CVE-2021-41232 is a high-severity vulnerability in StevenWeathers thunderdome-planning-poker, published on 2 Nov 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

Thunderdome is an open source agile planning poker tool in the theme of Battling for points. In affected versions there is an LDAP injection vulnerability which affects instances with LDAP authentication enabled. The provided username is not properly escaped. This issue has been patched in version 1.16.3. If users are unable to update they should disable the LDAP feature if in use.

Weakness: CWE-116 (Improper Encoding or Escaping of Output), CWE-90 (Improper Neutralization of Special Elements used in an LDAP Query), CWE-74 (Improper Neutralization of Special Elements in Output Used by a Downstream Component)

## Which versions are affected by CVE-2021-41232?

3 open source packages ship an affected version, including github.com/stevenweathers/thunderdome-planning-poker and github.com/StevenWeathers/thunderdome-planning-poker. It affects 1 product.


| Package | Ecosystem | Affected | Fixed in |
| --- | --- | --- | --- |
| `github.com/stevenweathers/thunderdome-planning-poker` | Go | All versions | 1.16.3 |
| `github.com/stevenweathers/thunderdome-planning-poker` | Go | All versions | 1.16.3 |
| `github.com/StevenWeathers/thunderdome-planning-poker` | Go | All versions | 1.16.3 |

Products: Thunderdome Planning Poker.

## How do I fix CVE-2021-41232?

Upgrade github.com/stevenweathers/thunderdome-planning-poker to 1.16.3 or later.

## Is CVE-2021-41232 being exploited?

There is no known exploitation of CVE-2021-41232 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2021-41232 and fix it if it is affected.

What it is: CVE-2021-41232 is a high-severity vulnerability in StevenWeathers thunderdome-planning-poker, published on 2 Nov 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-2021-41232 in the wild and no public exploit code.

Affected packages and fixed versions:
- github.com/stevenweathers/thunderdome-planning-poker (Go): affected all versions; fixed in 1.16.3
- github.com/stevenweathers/thunderdome-planning-poker (Go): affected all versions; fixed in 1.16.3
- github.com/StevenWeathers/thunderdome-planning-poker (Go): affected all versions; fixed in 1.16.3

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-2021-41232/ (Markdown: https://insights.sbomify.com/CVE-2021-41232/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2021-41232
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2021-41232
- OSV: https://osv.dev/vulnerability/CVE-2021-41232

---
From sbomify Insights: https://insights.sbomify.com/CVE-2021-41232/
Summaries are generated and may contain mistakes; the official description above is the record.