# CVE-2021-32651: LDAP injection via OneDev may leak some LDAP directory information

> Attackers can exploit LDAP injection in OneDev to leak directory information if external authentication is enabled.

- **Severity:** Low 3.1 (`CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 1 Jun 2021
- **Updated:** 3 Aug 2024
- **Also known as:** GHSA-5864-2496-4xjf, GHSA-r89m-qpxm-ccgx

## What is CVE-2021-32651?

CVE-2021-32651 is a low-severity vulnerability in theonedev onedev, published on 1 Jun 2021. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

OneDev is a development operations platform. If the LDAP external authentication mechanism is enabled in OneDev versions 4.4.1 and prior, an attacker can manipulate a user search filter to send forged queries to the application and explore the LDAP tree using Blind LDAP Injection techniques. The specific payload depends on how the User Search Filter property is configured in OneDev. This issue was fixed in version 4.4.2.

Weakness: CWE-90 (Improper Neutralization of Special Elements used in an LDAP Query)

## Which versions are affected by CVE-2021-32651?

It affects 1 product.


Products: Onedev Project Onedev.

## How do I fix CVE-2021-32651?

No fix has been published for CVE-2021-32651 yet. Limit exposure of the affected software until one is available.

## Is CVE-2021-32651 being exploited?

There is no known exploitation of CVE-2021-32651 in the wild and no public exploit code.

## Other vulnerabilities in theonedev onedev

- [CVE-2021-21242](https://insights.sbomify.com/CVE-2021-21242/): Pre-Auth Unsafe Deserialization on AttachmentUploadServet (critical 10.0)
- [CVE-2021-21243](https://insights.sbomify.com/CVE-2021-21243/): Pre-Auth Unsafe Deserialization on KubernetesResource (critical 10.0)
- [CVE-2021-21244](https://insights.sbomify.com/CVE-2021-21244/): Pre-Auth SSTI via Bean validation message tampering (critical 10.0)
- [CVE-2021-21245](https://insights.sbomify.com/CVE-2021-21245/): Pre-Auth Arbitrary File Upload (critical 10.0)
- [CVE-2022-39206](https://insights.sbomify.com/CVE-2022-39206/): CI/CD Docker Escape in OneDev (critical 9.9)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2021-32651 and fix it if it is affected.

What it is: CVE-2021-32651 is a low-severity vulnerability in theonedev onedev, published on 1 Jun 2021. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2021-32651 in the wild and no public exploit code.

Affected product: theonedev onedev. 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-2021-32651/ (Markdown: https://insights.sbomify.com/CVE-2021-32651/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2021-32651
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2021-32651
- OSV: https://osv.dev/vulnerability/CVE-2021-32651

---
From sbomify Insights: https://insights.sbomify.com/CVE-2021-32651/
Summaries are generated and may contain mistakes; the official description above is the record.