# CVE-2021-1410: Cisco Webex Meetings Unauthorized Distribution List Update Vulnerability

> An authenticated attacker can modify another user's distribution list in Cisco Webex Meetings due to insufficient authorization checks.

- **Severity:** Medium 4.3 (`CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N/RL:X/RC:X/E:X`)
- **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 Nov 2024
- **Updated:** 18 Nov 2024
- **Also known as:** GHSA-j5h7-5c44-5mjv

## What is CVE-2021-1410?

CVE-2021-1410 is a medium-severity missing authorization vulnerability in Cisco Webex Meetings, published on 18 Nov 2024. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

A vulnerability in the distribution list feature of Cisco Webex Meetings could allow an authenticated, remote attacker to modify a distribution list that belongs to another user of their organization.
The vulnerability is due to insufficient authorization enforcement for requests to update distribution lists. An attacker could exploit this vulnerability by sending a crafted request to the Webex Meetings interface to modify an existing distribution list. A successful exploit could allow the attacker to modify a distribution list that belongs to a user other than themselves.Cisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability.

Weakness: CWE-284 (Improper Access Control)

## Which versions are affected by CVE-2021-1410?

It affects 1 product.


Products: Cisco Webex Meetings.

## How do I fix CVE-2021-1410?

No fix has been published for CVE-2021-1410 yet. Limit exposure of the affected software until one is available.

## Is CVE-2021-1410 being exploited?

There is no known exploitation of CVE-2021-1410 in the wild and no public exploit code.

## Other vulnerabilities in Cisco Webex Meetings

- [CVE-2017-12368](https://insights.sbomify.com/CVE-2017-12368/): Memory corruption in Cisco WebEx Recording Format and Advanced Recording Format Players (critical 9.6)
- [CVE-2017-12369](https://insights.sbomify.com/CVE-2017-12369/): Memory corruption in Cisco WebEx Recording Format and Advanced Recording Format Players (critical 9.6)
- [CVE-2017-12370](https://insights.sbomify.com/CVE-2017-12370/): Memory corruption in Cisco WebEx Recording Format and Advanced Recording Format Players (critical 9.6)
- [CVE-2017-12371](https://insights.sbomify.com/CVE-2017-12371/): Memory corruption in Cisco WebEx Recording Format and Advanced Recording Format Players (critical 9.6)
- [CVE-2017-12372](https://insights.sbomify.com/CVE-2017-12372/): Memory corruption in Cisco WebEx Recording Format and Advanced Recording Format Players (critical 9.6)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2021-1410 and fix it if it is affected.

What it is: CVE-2021-1410 is a medium-severity missing authorization vulnerability in Cisco Webex Meetings, published on 18 Nov 2024. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2021-1410 in the wild and no public exploit code.

Affected product: Cisco Webex Meetings. 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-2021-1410/ (Markdown: https://insights.sbomify.com/CVE-2021-1410/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2021-1410
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2021-1410
- OSV: https://osv.dev/vulnerability/CVE-2021-1410

---
From sbomify Insights: https://insights.sbomify.com/CVE-2021-1410/
Summaries are generated and may contain mistakes; the official description above is the record.