Denial of Service Vulnerability in OpenNDS affecting Sierra Wireless ALEOS
CVE-2023-38321
7.5HIGH
What is CVE-2023-38321?
OpenNDS, utilized in Sierra Wireless ALEOS versions prior to 4.17.0.12, contains a vulnerability that allows remote attackers to exploit it by sending a specially crafted GET request to the /opennds_auth/ endpoint. If the GET request is lacking a custom query string parameter and client-token, it triggers a NULL pointer dereference, resulting in a daemon crash and potential captive portal outages. This vulnerability poses a significant risk as it can disrupt service availability.
References
CVSS V3.1
Score:
7.5
Severity:
HIGH
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged
Timeline
Vulnerability published
Vulnerability Reserved