# CVE-2021-22984: Open redirect in BIG-IP Advanced WAF & BIG-IP ASM

> Attackers can exploit malicious URIs in BIG-IP WAF/ASM to perform open redirection attacks, potentially bypassing security controls.

- **Severity:** Medium 6.1 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** A user has to click or open something
- **Fix available:** No
- **Published:** 12 Feb 2021
- **Updated:** 3 Aug 2024
- **Also known as:** GHSA-jjvj-f9jx-5jv4

## What is CVE-2021-22984?

CVE-2021-22984 is a medium-severity vulnerability in F5 Big-Ip Advanced Web Application Firewall, published on 12 Feb 2021. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

### Official description

On BIG-IP Advanced WAF and ASM version 15.1.x before 15.1.0.2, 15.0.x before 15.0.1.4, 14.1.x before 14.1.2.5, 13.1.x before 13.1.3.4, 12.1.x before 12.1.5.2, and 11.6.x before 11.6.5.2, when receiving a unauthenticated client request with a maliciously crafted URI, a BIG-IP Advanced WAF or ASM virtual server configured with a DoS profile with Proactive Bot Defense (versions prior to 14.1.0), or a Bot Defense profile (versions 14.1.0 and later), may subject clients and web servers to Open Redirection attacks. Note: Software versions which have reached End of Software Development (EoSD) are not evaluated.

Weakness: CWE-601 (URL Redirection to Untrusted Site)

## Which versions are affected by CVE-2021-22984?

It affects 2 products.


Products: F5 Big-Ip Advanced Web Application Firewall, F5 Big-Ip Application Security Manager.

## How do I fix CVE-2021-22984?

No fix has been published for CVE-2021-22984 yet. Limit exposure of the affected software until one is available.

## Is CVE-2021-22984 being exploited?

There is no known exploitation of CVE-2021-22984 in the wild and no public exploit code.

## Other vulnerabilities in F5 Big-Ip Advanced Web Application Firewall

- [CVE-2021-23031](https://insights.sbomify.com/CVE-2021-23031/): Privilege escalation in BIG-IP Advanced WAF and BIG-IP ASM (critical 9.9)
- [CVE-2021-23029](https://insights.sbomify.com/CVE-2021-23029/): Server-side request forgery in BIG-IP Advanced WAF and BIG-IP ASM (high 8.8)
- [CVE-2021-23014](https://insights.sbomify.com/CVE-2021-23014/): Missing authorization in BIG-IP ASM/Advanced WAF (high 8.8)
- [CVE-2021-22993](https://insights.sbomify.com/CVE-2021-22993/): Cross-site scripting in BIG-IP Advanced WAF and BIG-IP ASM (high 8.8)
- [CVE-2026-40060](https://insights.sbomify.com/CVE-2026-40060/): BIG-IP Advanced WAF and ASM vulnerability (high 8.7)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2021-22984 and fix it if it is affected.

What it is: CVE-2021-22984 is a medium-severity vulnerability in F5 Big-Ip Advanced Web Application Firewall, published on 12 Feb 2021. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Exploitation: There is no known exploitation of CVE-2021-22984 in the wild and no public exploit code.

Affected product: F5 Big-Ip Advanced Web Application Firewall. 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-2021-22984/ (Markdown: https://insights.sbomify.com/CVE-2021-22984/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2021-22984
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2021-22984
- OSV: https://osv.dev/vulnerability/CVE-2021-22984

---
From sbomify Insights: https://insights.sbomify.com/CVE-2021-22984/
Summaries are generated and may contain mistakes; the official description above is the record.