CVE intelligence and bounded remediation

CVE-2017-14699 — Asus Dsl-Ac51 Firmware security vulnerability

Medium CVSS 6.5

Multiple XML external entity (XXE) vulnerabilities in the AiCloud feature on ASUS DSL-AC51, DSL-AC52U, DSL-AC55U, DSL-N55U C1, DSL-N55U D1, DSL-AC56U, DSL-N10_C1, DSL-N12U C1, DSL-N12E C1, DSL-N14U, DSL-N14U-B1, DSL-N16, DSL-N16U, DSL-N17U, DSL-N66U, and DSL-AC750 routers allow remote authenticated users to read arbitrary files via a crafted DTD in (1) an UPDATEACCOUNT or (2) a PROPFIND request.

Severity
Medium
CVSS
6.5 (3.0)
Published
2018-01-29
CISA KEV
Not currently listed
Ecosystem
operating-system
Weaknesses
CWE-611

Affected products

  • asus / dsl-ac51_firmware
  • asus / dsl-ac52u_firmware
  • asus / dsl-ac55u_firmware
  • asus / dsl-n55u_c1_firmware
  • asus / dsl-n55u_d1_firmware
  • asus / dsl-ac56u_firmware

Showing 6 representative product identities from 16 source matches. Confirm exact affected versions with the linked vendor and NVD evidence.

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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