CVE intelligence and bounded remediation

CVE-2017-6323 — Symantec Management Console security vulnerability

High CVSS 8

The Symantec Management Console prior to ITMS 8.1 RU1, ITMS 8.0_POST_HF6, and ITMS 7.6_POST_HF7 has an issue whereby XML input containing a reference to an external entity is processed by a weakly configured XML parser. This attack may lead to the disclosure of confidential data, denial of service, server side request forgery, port scanning from the perspective of the machine where the parser is located, and other system impacts.

Severity
High
CVSS
8 (3.0)
Published
2018-04-16
CISA KEV
Not currently listed
Ecosystem
software/application
Weaknesses
CWE-611

Affected products

  • symantec / management_console
  • symantec / management_console / 7.6
  • symantec / management_console / 8.0

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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