CVE-2023-38320

· HIGHModified

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CVSS v3.1

7.5

EPSS

0.96%

Published

Nov 17, 2023

Modified

Nov 21, 2024

Public PoC / Exploit (1)

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Links to public security research (Exploit-DB, Nuclei, Trickest, GitHub) for defensive use only.

Description

An issue was discovered in OpenNDS Captive Portal before version 10.1.2. It has a show_preauthpage NULL pointer dereference that can be triggered with a crafted GET HTTP with a missing User-Agent header. Triggering this issue results in crashing OpenNDS (a Denial-of-Service condition). This problem was fixed in OpenWrt master, OpenWrt 23.05 and OpenWrt 22.03 on 28. August 2023 by updating OpenNDS to version 10.1.3.

CVSS Vector

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

Weaknesses (CWE)

CWE-476

Affected Products (1)

opennds · captive_portal (up to 10.1.2)vulnerable

References (6)

https://github.com/openNDS/openNDS/releases/tag/v10.1.2

Release NotesVendor Advisory

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

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

https://github.com/openNDS/openNDS/releases/tag/v10.1.2

Release NotesVendor Advisory

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

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

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