# CVE-2022-24976: Auth bypass in n/a

> Attackers can bypass authentication in Atheme IRC Services by manipulating the IRC handshake during login, requiring specific InspIRCd integration.

- **Severity:** Critical 9.1 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** Yes
- **Published:** 13 Feb 2022
- **Updated:** 3 Aug 2024
- **Also known as:** DEBIAN-CVE-2022-24976, GHSA-3fv4-6wvg-x83x, UBUNTU-CVE-2022-24976, openSUSE-SU-2022:10018-1, openSUSE-SU-2022:10019-1, openSUSE-SU-2024:11848-1

## What is CVE-2022-24976?

CVE-2022-24976 is a critical authentication bypass vulnerability in n/a, published on 13 Feb 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

Atheme IRC Services before 7.2.12, when used in conjunction with InspIRCd, allows authentication bypass by ending an IRC handshake at a certain point during a challenge-response login sequence.

Weakness: CWE-287 (Improper Authentication)

## Which versions are affected by CVE-2022-24976?

It affects 1 product.


| Package | Ecosystem | Affected | Fixed in |
| --- | --- | --- | --- |
| `atheme` | SUSE:Package Hub 15 SP3 | All versions | 7.2.12-bp153.2.3.1 |
| `atheme` | SUSE:Package Hub 15 SP4 | All versions | 7.2.12-bp154.2.3.1 |
| `atheme` | openSUSE:Leap 15.3 | All versions | 7.2.12-bp153.2.3.1 |
| `atheme` | openSUSE:Leap 15.4 | All versions | 7.2.12-bp154.2.3.1 |
| `atheme` | openSUSE:Tumbleweed | All versions | 7.2.12-2.1 |

Products: Atheme Atheme.

## How do I fix CVE-2022-24976?

Upgrade to a fixed version.

## Is CVE-2022-24976 being exploited?

There is no known exploitation of CVE-2022-24976 in the wild and no public exploit code.

## Other vulnerabilities in n/a

- [CVE-2024-27508](https://insights.sbomify.com/CVE-2024-27508/): Denial of service in n/a (high 7.5)
- [CVE-2017-6384](https://insights.sbomify.com/CVE-2017-6384/): Denial of service in n/a (high 7.5)
- [CVE-2014-9773](https://insights.sbomify.com/CVE-2014-9773/): Missing authorization in n/a (high 7.5)
- [CVE-2016-4478](https://insights.sbomify.com/CVE-2016-4478/): Memory corruption in n/a (high 7.5)
- [CVE-2012-1576](https://insights.sbomify.com/CVE-2012-1576/): Auth bypass in n/a (medium 6.0)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2022-24976 and fix it if it is affected.

What it is: CVE-2022-24976 is a critical authentication bypass vulnerability in n/a, published on 13 Feb 2022. 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-2022-24976 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-2022-24976/ (Markdown: https://insights.sbomify.com/CVE-2022-24976/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2022-24976
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2022-24976
- OSV: https://osv.dev/vulnerability/CVE-2022-24976

---
From sbomify Insights: https://insights.sbomify.com/CVE-2022-24976/
Summaries are generated and may contain mistakes; the official description above is the record.