The Java WebSocket client nv-websocket-client does not verify that the server hostname matches a domain name in the subject's Common Name (CN) or subjectAltName field of the X.509 certificate, which allows man-in-the-middle attackers to spoof SSL/TLS servers via an arbitrary valid certificate.
Published 2017-11-17 02:29:01
Updated 2017-12-05 14:34:36
Source MITRE
View at NVD,   CVE.org

Exploit prediction scoring system (EPSS) score for CVE-2017-1000209

Probability of exploitation activity in the next 30 days: 0.09%

Percentile, the proportion of vulnerabilities that are scored at or less: ~ 35 % EPSS Score History EPSS FAQ

CVSS scores for CVE-2017-1000209

Base Score Base Severity CVSS Vector Exploitability Score Impact Score Score Source
4.3
MEDIUM AV:N/AC:M/Au:N/C:P/I:N/A:N
8.6
2.9
NIST
5.9
MEDIUM CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
2.2
3.6
NIST

CWE ids for CVE-2017-1000209

References for CVE-2017-1000209

Products affected by CVE-2017-1000209

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