NULL Pointer Dereference in OpenNDS Captive Portal Leads to Denial-of-Service

NULL Pointer Dereference in OpenNDS Captive Portal Leads to Denial-of-Service

CVE-2023-38314 · MEDIUM Severity

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

An issue was discovered in OpenNDS Captive Portal before version 10.1.2. It has a NULL pointer dereference in preauthenticated() that can be triggered with a crafted GET HTTP request with a missing redirect query string parameter. Triggering this issue results in crashing OpenNDS (a Denial-of-Service condition).

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