CVE intelligence and bounded remediation

CVE-2018-11142 — Quest Kace System Management Appliance security vulnerability

Medium CVSS 5.5

The 'systemui/settings_network.php' and 'systemui/settings_patching.php' scripts in the Quest KACE System Management Appliance 8.0.318 are accessible only from localhost. This restriction can be bypassed by modifying the 'Host' and 'X_Forwarded_For' HTTP headers in a POST request. An anonymous user can abuse this vulnerability to execute critical functions without authorization.

Severity
Medium
CVSS
5.5 (3.0)
Published
2018-05-31
CISA KEV
Not currently listed
Ecosystem
software/application
Weaknesses
CWE-863

Affected products

  • quest / kace_system_management_appliance / 8.0.318

Matched remediation archetype

Authorization bypass, IDOR, and cross-tenant access

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Check exposure

  • Map object and action authorization checks across API, UI, batch, import/export, and background-job paths.
  • Identify tenant, ownership, role, and policy boundaries for affected resources and administrative operations.
  • Use synthetic fixtures to compare intended access matrices without accessing another user's real data.

Remediate safely

  • Enforce server-side authorization at each resource access and state transition using the authenticated principal and trusted tenant context.
  • Scope data queries by tenant and ownership; treat client-supplied identifiers, roles, and policy claims as untrusted.
  • Add deny-by-default policy tests for horizontal and vertical access across every affected transport.

Authoritative sources

Complete CVE record and remediation plan

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