CVE intelligence and bounded remediation

CVE-2018-0323 — Cisco Network Functions Virtualization Infrastructure security vulnerability

Medium CVSS 6.5

A vulnerability in the web management interface of Cisco Enterprise NFV Infrastructure Software (NFVIS) could allow an authenticated, remote attacker to conduct a path traversal attack on a targeted system. The vulnerability is due to insufficient validation of web request parameters. An attacker who has access to the web management interface of the affected application could exploit this vulnerability by sending a malicious web request to the affected device. A successful exploit could allow the attacker to access sensitive information on the affected system. Cisco Bug IDs: CSCvh99631.

Severity
Medium
CVSS
6.5 (3.0)
Published
2018-05-17
CISA KEV
Not currently listed
Ecosystem
software/application
Weaknesses
CWE-22

Affected products

  • cisco / network_functions_virtualization_infrastructure / 3.6.1
  • cisco / network_functions_virtualization_infrastructure / 3.7.1

Matched remediation archetype

Path traversal, unsafe upload, and file handling

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Check exposure

  • Trace untrusted filenames, archive entries, URLs, and path segments into read, write, include, extraction, and upload operations.
  • Identify filesystem roots, mount permissions, symbolic-link behavior, archive handling, and whether uploaded content is web-accessible or executable.
  • Review canonicalization and containment checks across supported operating systems and storage backends.

Remediate safely

  • Generate server-side storage identifiers and resolve paths beneath a fixed root using filesystem-aware containment checks.
  • Reject absolute, parent-relative, alternate-separator, device, link, and archive entries that escape the intended root.
  • Store uploads outside executable or served paths, validate type and size, and use private atomic temporary files.

Authoritative sources

Complete CVE record and remediation plan

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