What’s Vulnerable › Vulnerabilities

CVE-2023-38324

• Severity: medium (CVSS 5.3 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.7% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2023-11-17 · updated 2026-06-17

Description

An issue was discovered in OpenNDS before 10.1.2. It allows users to skip the splash page sequence (and directly authenticate) when it is using the default FAS key and OpenNDS is configured as FAS. Affected OpenNDS Captive Portal before version 10.1.2 fixed in OpenWrt master, OpenWrt 23.05 and OpenWrt 22.03 on 28. August 2023 by updating OpenNDS to version 10.1.3.

Affected products

• openNDS Captive Portal: before 10.1.2 — fixed in 10.1.2

How to fix

Upgrade to a fixed version: openNDS Captive Portal 10.1.2. Check the vendor advisory for mitigations.

References

• https://cwe.mitre.org/data/definitions/1390.html
• https://github.com/openNDS/openNDS/blob/master/ChangeLog
• https://github.com/openNDS/openNDS/releases/tag/v10.1.2
• https://github.com/openwrt/routing/commit/0b19771fb2dd81e7c428759610aed583171eed80
• https://openwrt.org/docs/guide-user/services/captive-portal/opennds
• https://source.sierrawireless.com/resources/security-bulletins/sierra-wireless-technical-bulletin---swi-psa-2023-006-v4/#sthash.2vJg3d85.rwx82g1C.dpbs
• https://www.forescout.com/resources/sierra21-vulnerabilities
• https://cwe.mitre.org/data/definitions/1390.html
• https://github.com/openNDS/openNDS/blob/master/ChangeLog
• https://github.com/openNDS/openNDS/releases/tag/v10.1.2
• https://github.com/openwrt/routing/commit/0b19771fb2dd81e7c428759610aed583171eed80
• https://openwrt.org/docs/guide-user/services/captive-portal/opennds

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