# CVE-2018-0362: Auth bypass in Cisco 5000 Series Enterprise Network Compute System and Cisco UCS E-Series Servers unknown

> An unauthenticated local attacker can bypass BIOS authentication by submitting an empty password, gaining access to restricted user-level BIOS commands.

- **Severity:** Medium 4.3 (`CVSS:3.0/AV:P/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Local or same network only
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 21 Jun 2018
- **Updated:** 29 Nov 2024
- **Also known as:** GHSA-xq97-24qj-jwq2

## What is CVE-2018-0362?

CVE-2018-0362 is a medium-severity authentication bypass vulnerability in Cisco 5000 Series Enterprise Network Compute System and Cisco UCS E-Series Servers unknown, published on 21 Jun 2018. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

A vulnerability in BIOS authentication management of Cisco 5000 Series Enterprise Network Compute System and Cisco Unified Computing (UCS) E-Series Servers could allow an unauthenticated, local attacker to bypass the BIOS authentication and execute actions as an unprivileged user. The vulnerability is due to improper security restrictions that are imposed by the affected system. An attacker could exploit this vulnerability by submitting an empty password value to an affected device's BIOS authentication prompt. An exploit could allow the attacker to have access to a restricted set of user-level BIOS commands. Cisco Bug IDs: CSCvh83260.

Weakness: CWE-287 (Improper Authentication)

## Which versions are affected by CVE-2018-0362?

It affects 21 products.


Products: Cisco 5100 Enterprise Network Compute System Firmware, Cisco 5400 Enterprise Network Compute System Firmware, Cisco Ucs-E1120d-K9 Firmware, Cisco Ucs-E1120d-M3 Firmware, Cisco Ucs-E140d-K9 Firmware, Cisco Ucs-E140d-M1 Firmware, Cisco Ucs-E140dp-K9 Firmware, Cisco Ucs-E140dp-M1 Firmware, Cisco Ucs-E140s-K9 Firmware, Cisco Ucs-E140s-M1 Firmware, Cisco Ucs-E140s-M2 Firmware, Cisco Ucs-E160d-K9 Firmware, Cisco Ucs-E160d-M1 Firmware, Cisco Ucs-E160d-M2 Firmware, Cisco Ucs-E160dp-K9 Firmware, Cisco Ucs-E160dp-M1 Firmware, Cisco Ucs-E160s-K9 Firmware, Cisco Ucs-E160s-M3 Firmware, Cisco Ucs-E180d-K9 Firmware, Cisco Ucs-E180d-M2 Firmware and 1 more.

## How do I fix CVE-2018-0362?

No fix has been published for CVE-2018-0362 yet. Limit exposure of the affected software until one is available.

## Is CVE-2018-0362 being exploited?

There is no known exploitation of CVE-2018-0362 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2018-0362 and fix it if it is affected.

What it is: CVE-2018-0362 is a medium-severity authentication bypass vulnerability in Cisco 5000 Series Enterprise Network Compute System and Cisco UCS E-Series Servers unknown, published on 21 Jun 2018. 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-2018-0362 in the wild and no public exploit code.

Affected product: Cisco 5000 Series Enterprise Network Compute System and Cisco UCS E-Series Servers unknown. 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-2018-0362/ (Markdown: https://insights.sbomify.com/CVE-2018-0362/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2018-0362
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2018-0362
- OSV: https://osv.dev/vulnerability/CVE-2018-0362

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From sbomify Insights: https://insights.sbomify.com/CVE-2018-0362/
Summaries are generated and may contain mistakes; the official description above is the record.