# CVE-2017-3832: Denial of service in Cisco Wireless LAN Controller

> Unauthenticated remote attackers can cause a denial of service by accessing a specific hidden URL in the Cisco WLC web interface.

- **Severity:** High 7.5 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 6 Apr 2017
- **Updated:** 5 Aug 2024
- **Also known as:** GHSA-g2wc-3mq6-j4gx

## What is CVE-2017-3832?

CVE-2017-3832 is a high-severity denial of service vulnerability in Cisco Wireless LAN Controller, published on 6 Apr 2017. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

A vulnerability in the web management interface of Cisco Wireless LAN Controller (WLC) Software could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. The vulnerability is due to a missing internal handler for the specific request. An attacker could exploit this vulnerability by accessing a specific hidden URL on the GUI web management interface. A successful exploit could allow the attacker to cause a reload of the device, resulting in a DoS condition. This vulnerability affects only the Cisco Wireless LAN Controller 8.3.102.0 release. Cisco Bug IDs: CSCvb48198.

Weakness: CWE-755 (Improper Handling of Exceptional Conditions), CWE-264

## Which versions are affected by CVE-2017-3832?

It affects 1 product.


Products: Cisco Wireless Lan Controller Firmware.

## How do I fix CVE-2017-3832?

No fix has been published for CVE-2017-3832 yet. Limit exposure of the affected software until one is available.

## Is CVE-2017-3832 being exploited?

There is no known exploitation of CVE-2017-3832 in the wild and no public exploit code.

## Other vulnerabilities in Cisco Wireless LAN Controller

- [CVE-2017-3854](https://insights.sbomify.com/CVE-2017-3854/): Auth bypass in Cisco Meshed Wireless LAN Controller (high 8.8)
- [CVE-2016-9219](https://insights.sbomify.com/CVE-2016-9219/): Denial of service in Cisco Wireless LAN Controller (high 7.5)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2017-3832 and fix it if it is affected.

What it is: CVE-2017-3832 is a high-severity denial of service vulnerability in Cisco Wireless LAN Controller, published on 6 Apr 2017. 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-2017-3832 in the wild and no public exploit code.

Affected product: Cisco Wireless LAN Controller. 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-2017-3832/ (Markdown: https://insights.sbomify.com/CVE-2017-3832/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2017-3832
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2017-3832
- OSV: https://osv.dev/vulnerability/CVE-2017-3832

---
From sbomify Insights: https://insights.sbomify.com/CVE-2017-3832/
Summaries are generated and may contain mistakes; the official description above is the record.