# CVE-2021-29156: Other in n/a

> Unauthenticated attackers can exploit LDAP injection in ForgeRock OpenAM to retrieve sensitive data like password hashes and session tokens.

- **Severity:** High 7.5 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 25 Mar 2021
- **Updated:** 3 Aug 2024
- **Also known as:** GHSA-8984-9gww-h52x

## What is CVE-2021-29156?

CVE-2021-29156 is a high-severity vulnerability in n/a, published on 25 Mar 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

ForgeRock OpenAM before 13.5.1 allows LDAP injection via the Webfinger protocol. For example, an unauthenticated attacker can perform character-by-character retrieval of password hashes, or retrieve a session token or a private key.

Weakness: CWE-74 (Improper Neutralization of Special Elements in Output Used by a Downstream Component)

## Which versions are affected by CVE-2021-29156?

It affects 1 product.


Products: Forgerock Openam.

## How do I fix CVE-2021-29156?

No fix has been published for CVE-2021-29156 yet. Limit exposure of the affected software until one is available.

## Is CVE-2021-29156 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2021-29156 exists.

Public exploit code:

- Proof-of-Concept tool for CVE-2021-29156, an LDAP injection vulnerability in ForgeRock OpenAM v13.0.0. (github_poc): https://github.com/guidepointsecurity/CVE-2021-29156
- Exploit for CVE-2021-29156 (github_poc): https://github.com/5amu/CVE-2021-29156
- OpenAM 13.0 - LDAP Injection (exploitdb)
- LDAP Injection In OpenAM (nuclei): http/cves/2021/CVE-2021-29156.yaml

## Other vulnerabilities in n/a

- [CVE-2016-10097](https://insights.sbomify.com/CVE-2016-10097/): XML external entity in n/a (high 7.5)
- [CVE-2014-7246](https://insights.sbomify.com/CVE-2014-7246/): Denial of service in n/a (low 3.5)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2021-29156 and fix it if it is affected.

What it is: CVE-2021-29156 is a high-severity vulnerability in n/a, published on 25 Mar 2021. 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-2021-29156 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-2021-29156/ (Markdown: https://insights.sbomify.com/CVE-2021-29156/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2021-29156
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2021-29156
- OSV: https://osv.dev/vulnerability/CVE-2021-29156

---
From sbomify Insights: https://insights.sbomify.com/CVE-2021-29156/
Summaries are generated and may contain mistakes; the official description above is the record.