# CVE-2019-11170: Auth bypass in Intel(R) BMC

> Unauthenticated local attackers can bypass authentication in Intel BMC firmware to disclose information, escalate privileges, or cause denial of service.

- **Severity:** High 7.8 (`CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Local or same network only
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 14 Nov 2019
- **Updated:** 4 Aug 2024
- **Also known as:** GHSA-988f-qp54-rcj2

## What is CVE-2019-11170?

CVE-2019-11170 is a high-severity authentication bypass vulnerability in Intel(R) BMC, published on 14 Nov 2019. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

Authentication bypass in Intel(R) Baseboard Management Controller firmware may allow an unauthenticated user to potentially enable information disclosure, escalation of privilege and/or denial of service via local access.

Weakness: CWE-287 (Improper Authentication)

## Which versions are affected by CVE-2019-11170?

It affects 1 product.


Products: Intel Baseboard Management Controller Firmware.

## How do I fix CVE-2019-11170?

No fix has been published for CVE-2019-11170 yet. Limit exposure of the affected software until one is available.

## Is CVE-2019-11170 being exploited?

There is no known exploitation of CVE-2019-11170 in the wild and no public exploit code.

## Other vulnerabilities in Intel(R) BMC

- [CVE-2019-11171](https://insights.sbomify.com/CVE-2019-11171/): Memory corruption in Intel(R) BMC (critical 9.8)
- [CVE-2019-11168](https://insights.sbomify.com/CVE-2019-11168/): Information disclosure in Intel(R) BMC (critical 9.1)
- [CVE-2019-11178](https://insights.sbomify.com/CVE-2019-11178/): Denial of service in Intel(R) BMC (high 8.1)
- [CVE-2020-24474](https://insights.sbomify.com/CVE-2020-24474/): Memory corruption in Intel(R) Server Boards, Server Systems and Compute Modules (high 8.0)
- [CVE-2020-24473](https://insights.sbomify.com/CVE-2020-24473/): Memory corruption in Intel(R) Server Boards, Server Systems and Compute Modules (high 7.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2019-11170 and fix it if it is affected.

What it is: CVE-2019-11170 is a high-severity authentication bypass vulnerability in Intel(R) BMC, published on 14 Nov 2019. It can only be exploited from the same machine or local network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2019-11170 in the wild and no public exploit code.

Affected product: Intel(R) BMC. 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-2019-11170/ (Markdown: https://insights.sbomify.com/CVE-2019-11170/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2019-11170
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2019-11170
- OSV: https://osv.dev/vulnerability/CVE-2019-11170

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From sbomify Insights: https://insights.sbomify.com/CVE-2019-11170/
Summaries are generated and may contain mistakes; the official description above is the record.