CVE intelligence and bounded remediation

CVE-2020-24052 — Moog Exvf5C-2 Firmware security vulnerability

Critical CVSS 9.1

Several XML External Entity (XXE) vulnerabilities in the Moog EXO Series EXVF5C-2 and EXVP7C2-3 units allow remote unauthenticated users to read arbitrary files via a crafted Document Type Definition (DTD) in an XML request.

Severity
Critical
CVSS
9.1 (3.1)
Published
2020-08-21
CISA KEV
Not currently listed
Ecosystem
operating-system
Weaknesses
CWE-611

Affected products

  • moog / exvf5c-2_firmware
  • moog / exvp7c2-3_firmware

Matched remediation archetype

XML external entity and unsafe XML processing

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Check exposure

  • Inventory XML parsers used by APIs, file imports, office or image formats, identity protocols, feeds, and background jobs.
  • Determine whether document type declarations, external entities, XInclude, schemas, or network resolvers are enabled.
  • Map parser filesystem and network access and the sensitivity of documents it processes.

Remediate safely

  • Configure each parser to reject document type declarations and disable external entity, XInclude, and network resolution features.
  • Prefer a data format or hardened parser that does not support external resolution, and apply input size and depth limits.
  • Update affected XML libraries and centralize secure parser construction so callers cannot silently override it.

Authoritative sources

Complete CVE record and remediation plan

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