CVE-2018-5406: The Quest Kace K1000 Appliance misconfigures the Cross-Origin Resource Sharing (CORS) mechanism.

Severity: high (CVSS 8.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 12.2% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2019-06-03 · updated 2026-06-17
Weakness: CWE-284

Description

The Quest Kace K1000 Appliance, versions prior to 9.0.270, allows a remote attacker to exploit the misconfigured Cross-Origin Resource Sharing (CORS) mechanism. An unauthenticated, remote attacker could exploit this vulnerability to perform sensitive actions such as adding a new administrator account or changing the appliance’s settings. A malicious internal user could also gain administrator privileges of this appliance and use it to visit a malicious link that exploits this vulnerability. This could cause the application to perform sensitive actions such as adding a new administrator account or changing the appliance’s settings. An unauthenticated, remote attacker could add an administrator-level account or change the appliance's settings.

Affected products

Quest Kace K1000 Appliance: before 9.0.270 — fixed in 9.0.270

How to fix

Upgrade to a fixed version: Quest Kace K1000 Appliance 9.0.270. Check the vendor advisory for mitigations.

References

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