CVE-2023-38321

moderate-risk
Published 2023-12-25

OpenNDS, as used in Sierra Wireless ALEOS before 4.17.0.12 and other products, allows remote attackers to cause a denial of service (NULL pointer dereference, daemon crash, and Captive Portal outage) via a GET request to /opennds_auth/ that lacks a custom query string parameter and client-token.

Do I need to act?

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0.05% chance of exploitation
EPSS score — low exploit probability
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
7
CVSS 7.5/10 High
NETWORK / LOW complexity

Affected Products (1)

Affected Vendors

Sierrawireless

References (6)

Release Notes https://github.com/openNDS/openNDS/blob/master/ChangeLog
Product https://openwrt.org/docs/guide-user/services/captive-portal/opennds
Vendor Advisory https://source.sierrawireless.com/-/media/support_downloads/security-bulletins/p...
Release Notes https://github.com/openNDS/openNDS/blob/master/ChangeLog
Product https://openwrt.org/docs/guide-user/services/captive-portal/opennds
Vendor Advisory https://source.sierrawireless.com/-/media/support_downloads/security-bulletins/p...
31
/ 100
moderate-risk
Severity 26/34 · High
Exploitability 0/34 · Minimal
Exposure 5/34 · Minimal