CVE intelligence and bounded remediation

CVE-2023-23595 — BlueCat Device Registration Portal 2.2 allows XXE attacks that exfiltrate single-line files

High CVSS 7.5

BlueCat Device Registration Portal 2.2 allows XXE attacks that exfiltrate single-line files. A single-line file might contain credentials, such as "machine example.com login daniel password qwerty" in the documentation example for the .netrc file format. NOTE: 2.x versions are no longer supported. There is no available information about whether any later version is affected.

Severity
High
CVSS
7.5 (3.1)
Published
2023-01-15
CISA KEV
Not currently listed
Ecosystem
software/application
Weaknesses
CWE-611

Affected products

  • bluecatnetworks / device_registration_portal / 2.2

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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