# CVE-2021-20411: Auth bypass in Security Verify Information Queue

> Attackers can impersonate other users due to incorrect session identifier updates in IBM Security Verify Information Queue.

- **Severity:** High 7.5 (`CVSS:3.0/S:C/AV:A/PR:N/C:H/UI:R/I:H/A:N/AC:H/E:U/RL:O/RC:C`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Local or same network only
- **Victim action needed:** A user has to click or open something
- **Fix available:** No
- **Published:** 12 Feb 2021
- **Updated:** 16 Sep 2024
- **Also known as:** GHSA-php9-88rp-7qwr

## What is CVE-2021-20411?

CVE-2021-20411 is a high-severity authentication bypass vulnerability in IBM Security Verify Information Queue, published on 12 Feb 2021. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.

### Official description

IBM Security Verify Information Queue 1.0.6 and 1.0.7 could allow a user to impersonate another user on the system due to incorrectly updating the session identifier. IBM X-Force ID: 198191.

Weakness: CWE-669 (Incorrect Resource Transfer Between Spheres)

## Which versions are affected by CVE-2021-20411?

It affects 1 product.


Products: Ibm Security Verify Information Queue.

## How do I fix CVE-2021-20411?

No fix has been published for CVE-2021-20411 yet. Limit exposure of the affected software until one is available.

## Is CVE-2021-20411 being exploited?

There is no known exploitation of CVE-2021-20411 in the wild and no public exploit code.

## Other vulnerabilities in IBM Security Verify Information Queue

- [CVE-2021-20408](https://insights.sbomify.com/CVE-2021-20408/): Information disclosure in Security Verify Information Queue (high 7.1)
- [CVE-2022-35287](https://insights.sbomify.com/CVE-2022-35287/): Hardcoded credentials in Security Verify Information Queue (medium 6.8)
- [CVE-2024-45669](https://insights.sbomify.com/CVE-2024-45669/): IBM Security Verify Information Queue denial of service (medium 6.5)
- [CVE-2022-35285](https://insights.sbomify.com/CVE-2022-35285/): Cross-site request forgery in Security Verify Information Queue (medium 6.5)
- [CVE-2022-35283](https://insights.sbomify.com/CVE-2022-35283/): Denial of service in Security Verify Information Queue (medium 6.5)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2021-20411 and fix it if it is affected.

What it is: CVE-2021-20411 is a high-severity authentication bypass vulnerability in IBM Security Verify Information Queue, published on 12 Feb 2021. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.
Exploitation: There is no known exploitation of CVE-2021-20411 in the wild and no public exploit code.

Affected product: IBM Security Verify Information Queue. 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-2021-20411/ (Markdown: https://insights.sbomify.com/CVE-2021-20411/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2021-20411
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2021-20411
- OSV: https://osv.dev/vulnerability/CVE-2021-20411

---
From sbomify Insights: https://insights.sbomify.com/CVE-2021-20411/
Summaries are generated and may contain mistakes; the official description above is the record.