CVE-2023-43509: Unauthenticated Endpoint Allows Sending Arbitrary OnGuard Notifications

Severity: medium (CVSS 5.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.8% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2023-10-25 · updated 2026-06-17
Weakness: CWE-79

Description

A vulnerability in the web-based management interface of ClearPass Policy Manager could allow an unauthenticated remote attacker to send notifications to computers that are running ClearPass OnGuard. These notifications can then be used to phish users or trick them into downloading malicious software.

Affected products

Aruba ClearPass Policy Manager: before 6.9.13; from 6.10.0 before 6.10.8; from 6.11.0 through 6.11.4; 6.9.13, 6.9.13-cumulative_hotfix_patch_2, 6.9.13-cumulative_hotfix_patch_3, 6.10.8, 6.10.8-cumulative_hotfix_patch_2, 6.10.8-cumulative_hotfix_patch_5 — fixed in 6.10.8, 6.9.13

How to fix

Upgrade to a fixed version: Aruba ClearPass Policy Manager 6.10.8, 6.9.13. Check the vendor advisory for mitigations.

References

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