# CVE-2021-37154: XML external entity in n/a

> Attackers can inject XML into SAML2 assertions to bypass authentication or take over accounts in ForgeRock Access Management.

- **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:** 25 Aug 2021
- **Updated:** 4 Aug 2024
- **Also known as:** GHSA-xqvg-mhw9-7644

## What is CVE-2021-37154?

CVE-2021-37154 is a critical vulnerability in n/a, published on 25 Aug 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

In ForgeRock Access Management (AM) before 7.0.2, the SAML2 implementation allows XML injection, potentially enabling a fraudulent SAML 2.0 assertion.

Weakness: CWE-91 (XML Injection)

## Which versions are affected by CVE-2021-37154?

It affects 1 product.


Products: Forgerock Access Management.

## How do I fix CVE-2021-37154?

No fix has been published for CVE-2021-37154 yet. Limit exposure of the affected software until one is available.

## Is CVE-2021-37154 being exploited?

There is no known exploitation of CVE-2021-37154 in the wild and no public exploit code.

## Other vulnerabilities in n/a

- [CVE-2021-35464](https://insights.sbomify.com/CVE-2021-35464/): ForgeRock Access Management (AM) Core Server Remote Code Execution (critical 9.8, exploited in the wild)
- [CVE-2022-3748](https://insights.sbomify.com/CVE-2022-3748/): Improper authorization that can lead to account impersonation (critical 9.8)
- [CVE-2021-37153](https://insights.sbomify.com/CVE-2021-37153/): Auth bypass in n/a (critical 9.8)
- [CVE-2021-4201](https://insights.sbomify.com/CVE-2021-4201/): Pre-authentication session hijacking (critical 9.6)
- [CVE-2023-0582](https://insights.sbomify.com/CVE-2023-0582/): Path Traversal in ForgeRock Access Managment (high 8.1)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2021-37154 and fix it if it is affected.

What it is: CVE-2021-37154 is a critical vulnerability in n/a, published on 25 Aug 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-2021-37154 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-2021-37154/ (Markdown: https://insights.sbomify.com/CVE-2021-37154/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2021-37154
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2021-37154
- OSV: https://osv.dev/vulnerability/CVE-2021-37154

---
From sbomify Insights: https://insights.sbomify.com/CVE-2021-37154/
Summaries are generated and may contain mistakes; the official description above is the record.