# CVE-2021-41992: PingID Windows Login RSA cryptographic weakness with possible offline MFA bypass

> An attacker can bypass Multi-Factor Authentication in PingID Windows Login due to weak RSA configuration, allowing unauthorized access.

- **Severity:** High 7.7 (`CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** An administrator
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 30 Apr 2022
- **Updated:** 4 Aug 2024
- **Also known as:** GHSA-r2cf-3rwp-j3r7

## What is CVE-2021-41992?

CVE-2021-41992 is a high-severity vulnerability in PingID Windows Login, published on 30 Apr 2022. An attacker needs administrator access to exploit it, with no action from the victim.

### Official description

A misconfiguration of RSA in PingID Windows Login prior to 2.7 is vulnerable to pre-computed dictionary attacks, leading to an offline MFA bypass.

Weakness: CWE-287 (Improper Authentication), CWE-310, CWE-288 (Authentication Bypass Using an Alternate Path or Channel)

## Which versions are affected by CVE-2021-41992?

It affects 1 product.


Products: Pingidentity Pingid Integration for Windows Login.

## How do I fix CVE-2021-41992?

No fix has been published for CVE-2021-41992 yet. Limit exposure of the affected software until one is available.

## Is CVE-2021-41992 being exploited?

There is no known exploitation of CVE-2021-41992 in the wild and no public exploit code.

## Other vulnerabilities in PingID Windows Login

- [CVE-2020-25826](https://insights.sbomify.com/CVE-2020-25826/): Privilege escalation in n/a (high 7.8)
- [CVE-2022-23725](https://insights.sbomify.com/CVE-2022-23725/): Information disclosure in PingID Windows Login (high 7.7)
- [CVE-2022-23718](https://insights.sbomify.com/CVE-2022-23718/): PingID Windows Login prior to 2.8 uses known vulnerable components that can lead to remote code execution (high 7.6)
- [CVE-2022-23720](https://insights.sbomify.com/CVE-2022-23720/): Hardcoded credentials in PingID Windows Login (high 7.5)
- [CVE-2022-23719](https://insights.sbomify.com/CVE-2022-23719/): Missing authorization in PingID Windows Login (high 7.2)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2021-41992 and fix it if it is affected.

What it is: CVE-2021-41992 is a high-severity vulnerability in PingID Windows Login, published on 30 Apr 2022. An attacker needs administrator access to exploit it, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2021-41992 in the wild and no public exploit code.

Affected product: PingID Windows Login. 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-2021-41992/ (Markdown: https://insights.sbomify.com/CVE-2021-41992/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2021-41992
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2021-41992
- OSV: https://osv.dev/vulnerability/CVE-2021-41992

---
From sbomify Insights: https://insights.sbomify.com/CVE-2021-41992/
Summaries are generated and may contain mistakes; the official description above is the record.