# CVE-2018-0110: Auth bypass in Cisco WebEx Meetings Server

> Authenticated attackers can bypass disabled remote support account restrictions to modify server configuration and access customer data.

- **Severity:** High 8.1 (`CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N`)
- **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:** 18 Jan 2018
- **Updated:** 2 Dec 2024
- **Also known as:** GHSA-pmrj-fmr8-qr7m

## What is CVE-2018-0110?

CVE-2018-0110 is a high-severity authentication bypass vulnerability in Cisco Webex Meetings Server, published on 18 Jan 2018. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

A vulnerability in Cisco WebEx Meetings Server could allow an authenticated, remote attacker to access the remote support account even after it has been disabled via the web application. The vulnerability is due to a design flaw in Cisco WebEx Meetings Server, which would not disable access to specifically configured user accounts, even after access had been disabled in the web application. An attacker could exploit this vulnerability by connecting to the remote support account, even after it had been disabled at the web application level. An exploit could allow the attacker to modify server configuration and gain access to customer data. Cisco Bug IDs: CSCvg46741.

Weakness: CWE-863 (Incorrect Authorization), CWE-254

## Which versions are affected by CVE-2018-0110?

It affects 1 product.


Products: Cisco Webex Meetings Server.

## How do I fix CVE-2018-0110?

No fix has been published for CVE-2018-0110 yet. Limit exposure of the affected software until one is available.

## Is CVE-2018-0110 being exploited?

There is no known exploitation of CVE-2018-0110 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-2018-0110 and fix it if it is affected.

What it is: CVE-2018-0110 is a high-severity authentication bypass vulnerability in Cisco Webex Meetings Server, published on 18 Jan 2018. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2018-0110 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-2018-0110/ (Markdown: https://insights.sbomify.com/CVE-2018-0110/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2018-0110
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2018-0110
- OSV: https://osv.dev/vulnerability/CVE-2018-0110

---
From sbomify Insights: https://insights.sbomify.com/CVE-2018-0110/
Summaries are generated and may contain mistakes; the official description above is the record.