CVE-2023-38314

17.11.2023, 06:15

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). Affected OpenNDS Captive Portal before version 10.1.2 fixed infixed in OpenWrt master, OpenWrt 23.05 and OpenWrt 22.03 on28. August 2023 by updating OpenNDS to version 10.1.3.

Provider	Type	Base Score	Atk. Vector	Atk. Complexity	Priv. Required	Vector
NIST	NIST	6.5 MEDIUM	NETWORK	LOW	LOW	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
mitre	CNA	---				---
CVE	ADP	---				---

Base Score

CVSS 3.x

EPSS Score

Percentile: 64%

Vendor	Product	Version
opennds	captive_portal	𝑥 < 10.1.2

𝑥

= Vulnerable software versions

Debian Releases

Debian Product

Codename

opennds

bookworm	vulnerable
sid	10.3.0+dfsg-0.1 fixed
trixie	10.3.0+dfsg-0.1 fixed

Ubuntu Releases

Ubuntu Product

Codename

opennds

oracular	needs-triage
noble	needs-triage
mantic	ignored
lunar	ignored
jammy	dne
focal	dne
bionic	ignored
xenial	ignored
trusty	ignored

Common Weakness Enumeration

CWE-476 - NULL Pointer Dereference
A NULL pointer dereference occurs when the application dereferences a pointer that it expects to be valid, but is NULL, typically causing a crash or exit.

References

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

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