# CVE-2017-12251: Auth bypass in Cisco Cloud Services Platform 2100

> Authenticated attackers can bypass authentication mechanisms in the web console to access and compromise hosted virtual machines on Cisco CSP devices.

- **Severity:** Critical 9.9 (`CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 19 Oct 2017
- **Updated:** 5 Aug 2024
- **Also known as:** GHSA-hcjw-jp4m-2qjx

## What is CVE-2017-12251?

CVE-2017-12251 is a critical authentication bypass vulnerability in Cisco Cloud Services Platform 2100, published on 19 Oct 2017. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

A vulnerability in the web console of the Cisco Cloud Services Platform (CSP) 2100 could allow an authenticated, remote attacker to interact maliciously with the services or virtual machines (VMs) operating remotely on an affected CSP device. The vulnerability is due to weaknesses in the generation of certain authentication mechanisms in the URL of the web console. An attacker could exploit this vulnerability by browsing to one of the hosted VMs' URLs in Cisco CSP and viewing specific patterns that control the web application's mechanisms for authentication control. An exploit could allow the attacker to access a specific VM on the CSP, which causes a complete loss of the system's confidentiality, integrity, and availability. This vulnerability affects Cisco Cloud Services Platform (CSP) 2100 running software release 2.1.0, 2.1.1, 2.1.2, 2.2.0, 2.2.1, or 2.2.2. Cisco Bug IDs: CSCve64690.

Weakness: CWE-287 (Improper Authentication), CWE-264

## Which versions are affected by CVE-2017-12251?

It affects 1 product.


Products: Cisco Cloud Services Platform 2100.

## How do I fix CVE-2017-12251?

No fix has been published for CVE-2017-12251 yet. Limit exposure of the affected software until one is available.

## Is CVE-2017-12251 being exploited?

There is no known exploitation of CVE-2017-12251 in the wild and no public exploit code.

## Other vulnerabilities in Cisco Cloud Services Platform 2100

- [CVE-2016-6374](https://insights.sbomify.com/CVE-2016-6374/): Command injection in n/a (critical 9.8)
- [CVE-2018-0394](https://insights.sbomify.com/CVE-2018-0394/): Code injection in Cisco Cloud Services Platform 2100 unknown (high 8.8)
- [CVE-2016-6373](https://insights.sbomify.com/CVE-2016-6373/): Command injection in n/a (high 7.2)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2017-12251 and fix it if it is affected.

What it is: CVE-2017-12251 is a critical authentication bypass vulnerability in Cisco Cloud Services Platform 2100, published on 19 Oct 2017. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2017-12251 in the wild and no public exploit code.

Affected product: Cisco Cloud Services Platform 2100. 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-2017-12251/ (Markdown: https://insights.sbomify.com/CVE-2017-12251/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2017-12251
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2017-12251
- OSV: https://osv.dev/vulnerability/CVE-2017-12251

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From sbomify Insights: https://insights.sbomify.com/CVE-2017-12251/
Summaries are generated and may contain mistakes; the official description above is the record.