CVE intelligence and bounded remediation

CVE-2018-0245 — Cisco Wireless Lan Controller Software security vulnerability

Medium CVSS 5.3

A vulnerability in the REST API of Cisco 5500 and 8500 Series Wireless LAN Controller (WLC) Software could allow an unauthenticated, remote attacker to view system information that under normal circumstances should be prohibited. The vulnerability is due to incomplete input and validation checking mechanisms in the REST API URL request. An attacker could exploit this vulnerability by sending a malicious URL to the REST API. If successful, an exploit could allow the attacker to view sensitive system information. Cisco Bug IDs: CSCvg89442.

Severity
Medium
CVSS
5.3 (3.1)
Published
2018-05-02
CISA KEV
Not currently listed
Ecosystem
operating-system
Weaknesses
CWE-200, CWE-269

Affected products

  • cisco / wireless_lan_controller_software / 8.3(133.0)
  • cisco / wireless_lan_controller_software / 8.5(105.0)

Matched remediation archetype

Privilege escalation and unsafe privilege management

This catalog composition supplies bounded fallback guidance. Explicitly reviewed curated workflows load with the complete record below.

Check exposure

  • Map service accounts, operating-system identities, roles, capabilities, impersonation, set-user transitions, and administrative helper paths.
  • Determine whether untrusted users or lower-privilege processes can reach the affected transition or modify inputs it trusts.
  • Review file, socket, registry, device, job, container, and cloud-role permissions used before and after privilege changes.

Remediate safely

  • Apply the supported fix and redesign privileged operations as a minimal, authenticated, allowlisted interface.
  • Drop privileges before processing untrusted input, verify the drop succeeds, and remove unnecessary roles, capabilities, and write permissions.
  • Validate ownership and permissions at time of use and add explicit lower-to-higher privilege boundary tests.

Authoritative sources

Complete CVE record and remediation plan

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