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CVE Record

CVE-2018-0463: Cisco Network Services Orchestrator Network Plug and Play Information Disclosure Vulnerability

A vulnerability in the Cisco Network Plug and Play server component of Cisco Network Services Orchestrator (NSO) could allow an unauthenticated, remote attacker to gain unauthorized access to configuration data that is stored on an affected NSO system. The vulnerability exists because the Network Plug and Play component performs incomplete validation when configured to use secure unique device identifiers (SUDI) for authentication. An attacker who controls a Cisco device that supports SUDI authentication and has connectivity to an affected NSO system could exploit this vulnerability. The attacker would need to leverage information about the devices that are being registered on the NSO server to send crafted Cisco Network Plug and Play authentication packets to an affected system. A successful exploit could allow the attacker to gain unauthorized access to configuration data for devices that will be managed by the NSO system.

UnknownCVSS not scoredNot KEV-listedUpdated
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Glexia's TakeAutomated analysismoderate

Security readout for executives and security teams

Plain-English summary

This Cisco NSO issue could let a remote unauthenticated attacker access configuration data for devices managed by NSO. The attacker needs control of a SUDI-capable Cisco device, network connectivity to the NSO Plug and Play component, and knowledge about devices being registered.

Executive priority

Treat this as a targeted exposure risk for network automation environments. Prioritize if NSO manages sensitive device configurations or if Plug and Play is reachable beyond trusted management networks.

Technical view

The Cisco Network Plug and Play server component in Cisco NSO incompletely validates SUDI-based authentication. Crafted Plug and Play authentication traffic from a controlled SUDI-capable Cisco device could bypass intended checks and expose configuration data for devices planned for NSO management.

Likely exposure

Exposure is most likely where Cisco NSO uses Network Plug and Play with SUDI authentication and that service is reachable from devices or networks outside tight administrative control.

Exploitation context

The bundle does not show CISA KEV listing or active exploitation evidence. Exploitation requires specific Cisco device control, NSO reachability, and registration-related knowledge, so risk depends heavily on deployment architecture.

Researcher notes

Key evidence gaps remain: no CVSS data, no affected version range, and no exploit-status detail in the bundle. Focus validation on NSO Plug and Play, SUDI authentication, reachability, and configuration data impact.

Mitigation direction

  • Review Cisco advisory cisco-sa-20180905-nso-infodis for supported remediation guidance.
  • Identify affected Cisco NSO deployments and prioritize remediation where Plug and Play is enabled.
  • Restrict NSO Plug and Play access to trusted management networks only.
  • Disable or isolate unused Plug and Play registration workflows where operationally possible.
  • Review vendor guidance before assuming a specific fixed version or workaround.

Validation and detection

  • Inventory Cisco NSO instances and confirm installed versions against Cisco guidance.
  • Check whether the Network Plug and Play server component is enabled.
  • Confirm whether SUDI authentication is configured for Plug and Play registration.
  • Validate that only trusted devices can reach the NSO Plug and Play service.
  • Review NSO registration and authentication logs for unexpected Cisco devices.
Prepared
Confidence
medium
Sources
3

Public sources used

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

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CVE-2018-0463 mapping review

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Vulnerability profileCVE Program record
Severity
Unknown
CVSS
Not scored
Known Exploited
No
Published
Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

0CVSS vectors
0Timeline events
0ADP providers
2Source links

CVSS and timeline data

No CVSS vectors or timeline events were available in the normalized CVE source material.

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
CiscoCisco Network Services Orchestratorn/aListed
Weakness

CWE details

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CWE-264 · source CWE mapping

Permissions, Privileges, and Access Controls

Permissions, Privileges, and Access Controls represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.

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