🛡️ CVE-2023-38315 — captive-portal

🟠 CVSS 7.5 — High ✅ No Known Exploit CWE-476 NVD

7.5

CVSS Score

0 Low4 Medium7 High9 Critical10

Description

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

How this vulnerability can be exploited

This issue can be reached over the network, attack complexity is low, an attacker needs no privileges on the target. No user interaction is required. The scope is unchanged, so the impact stays within the vulnerable component. Rated impact: confidentiality none, integrity none, availability high.

Weakness class

CVE-2023-38315 is classified as CWE-476: NULL Pointer Dereference. A pointer that can be null is used without a check, crashing the process.

Affected software

CVE-2023-38315 is recorded against 1 package.

captive-portal (fixed in 10.1.2)

Timeline and source

Published on 17 November 2023 and last revised on 17 June 2026. No public exploit is currently recorded for this entry. Record sourced from NVD.

References

github.com
github.com
source.sierrawireless.com
github.com
github.com
source.sierrawireless.com

CVE-2023-38315 on other distributions

Each distribution ships its own build and its own fixed version. Pick the one you run:

Debian Ubuntu

Details

Severity HIGH

CVSS Score 7.5

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

CWE CWE-476

Public Exploit ✅ No

Source NVD

Published 2023-11-17

Updated 2026-08-20

Modified 2026-06-17

Fix URL N/A

Affected Packages

Software	From version	Fixed in
captive-portal	—	10.1.2

References

Release Notes, Vendor Advisory https://github.com/openNDS/openNDS/releases/tag/v10.1.2

https://github.com/openwrt/routing/commit/0b19771fb2dd81e7c428759610aed583171eed80

https://source.sierrawireless.com/resources/security-bulletins/sierra-wireless-technical-bulletin---swi-psa-2023-006-v4/#sthash.2vJg3d85.rwx82g1C.dpbs

Release Notes, Vendor Advisory https://github.com/openNDS/openNDS/releases/tag/v10.1.2

https://github.com/openwrt/routing/commit/0b19771fb2dd81e7c428759610aed583171eed80

https://source.sierrawireless.com/resources/security-bulletins/sierra-wireless-technical-bulletin---swi-psa-2023-006-v4/#sthash.2vJg3d85.rwx82g1C.dpbs

🔗 NVD 🔗 Mitre

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