CVE-2023-38315
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.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.96%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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.
- CVSS 3.1
- 7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 0.96% probability · 59th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-476
- Affected
- opennds/captive portal
- Source
- cve@mitre.org
References
- https://github.com/openNDS/openNDS/releases/tag/v10.1.2Release Notes, Vendor Advisory
- 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/v10.1.2Release Notes, Vendor Advisory
- 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
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.