Vulnerability Details : CVE-2023-38320
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.
Vulnerability category: Memory CorruptionDenial of service
Products affected by CVE-2023-38320
- cpe:2.3:a:opennds:captive_portal:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2023-38320
0.09%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 41 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2023-38320
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
---|---|---|---|---|---|---|
7.5
|
HIGH | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
3.9
|
3.6
|
NIST |
CWE ids for CVE-2023-38320
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The product dereferences a pointer that it expects to be valid but is NULL.Assigned by: nvd@nist.gov (Primary)
References for CVE-2023-38320
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https://github.com/openNDS/openNDS/releases/tag/v10.1.2
Release OpenNDS v10.1.2 release · openNDS/openNDS · GitHubRelease Notes;Vendor Advisory
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https://github.com/openwrt/routing/commit/0b19771fb2dd81e7c428759610aed583171eed80
opennds: update to version 10.1.3 · openwrt/routing@0b19771 · GitHub
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https://source.sierrawireless.com/resources/security-bulletins/sierra-wireless-technical-bulletin---swi-psa-2023-006/#sthash.2vJg3d85.dpbs
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