# CVE-2017-12293: Denial of service in Cisco WebEx Meetings Server

> Unauthenticated remote attackers can cause a denial of service by exhausting server resources through excessive connections, requiring a patch.

- **Severity:** High 8.6 (`CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/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:** 19 Oct 2017
- **Updated:** 5 Aug 2024
- **Also known as:** GHSA-6ww8-jvpr-225p

## What is CVE-2017-12293?

CVE-2017-12293 is a high-severity denial of service vulnerability in Cisco Webex Meetings Server, published on 19 Oct 2017. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

A vulnerability in Cisco WebEx Meetings Server could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition. The vulnerability is due to insufficient limitations on the number of connections that can be made to the affected software. An attacker could exploit this vulnerability by opening multiple connections to the server and exhausting server resources. A successful exploit could cause the server to reload, resulting in a DoS condition. Cisco Bug IDs: CSCvf41006.

Weakness: CWE-400 (Uncontrolled Resource Consumption), CWE-119 (Improper Restriction of Operations within the Bounds of a Memory Buffer)

## Which versions are affected by CVE-2017-12293?

It affects 1 product.


Products: Cisco Webex Meetings Server.

## How do I fix CVE-2017-12293?

No fix has been published for CVE-2017-12293 yet. Limit exposure of the affected software until one is available.

## Is CVE-2017-12293 being exploited?

There is no known exploitation of CVE-2017-12293 in the wild and no public exploit code.

## Other vulnerabilities in Cisco Webex Meetings Server

- [CVE-2017-12367](https://insights.sbomify.com/CVE-2017-12367/): Memory corruption in Cisco WebEx Recording Format and Advanced Recording Format Players (critical 9.6)
- [CVE-2015-0589](https://insights.sbomify.com/CVE-2015-0589/): Command injection in n/a (critical 9.0)
- [CVE-2017-3794](https://insights.sbomify.com/CVE-2017-3794/): Cross-site request forgery in Cisco WebEx Meetings Server 2.6 (high 8.8)
- [CVE-2016-1448](https://insights.sbomify.com/CVE-2016-1448/): Cross-site request forgery in n/a (high 8.8)
- [CVE-2016-1446](https://insights.sbomify.com/CVE-2016-1446/): SQL injection in n/a (high 8.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2017-12293 and fix it if it is affected.

What it is: CVE-2017-12293 is a high-severity denial of service vulnerability in Cisco Webex Meetings Server, published on 19 Oct 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-2017-12293 in the wild and no public exploit code.

Affected product: Cisco Webex Meetings Server. 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-2017-12293/ (Markdown: https://insights.sbomify.com/CVE-2017-12293/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2017-12293
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2017-12293
- OSV: https://osv.dev/vulnerability/CVE-2017-12293

---
From sbomify Insights: https://insights.sbomify.com/CVE-2017-12293/
Summaries are generated and may contain mistakes; the official description above is the record.