title: User authentication bypass in wolfSSH server
description: A vulnerability was found in wolfSSH's server-side state machine before versions 1.4.17. A malicious client could create channels without first performing user authentication, resulting in unauthorized access.
problem types: CWE-287 Improper Authentication
affected:
{
defaultStatus: unaffected
product: wolfSSH
repo: https://github.com/wolfSSL/wolfssh
vendor: wolfSSL Inc.
versions:
lessThanOrEqual: v1.4.16, status: affected, version: 0, versionType: release bundle
}
metrics:
cvssV3_1: [
attackComplexity: LOW
attackVector: NETWORK
availabilityImpact: NONE
baseScore: 9.1
baseSeverity: CRITICAL
confidentialityImpact: HIGH
integrityImpact: HIGH
privilegesRequired: NONE
scope: UNCHANGED
userInteraction: NONE
vectorString: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
version: 3.1
]
format: CVSS
scenarios: GENERAL
solutions: The fix for this issue is located in the following GitHub Pull Requests:
*   https://github.com/wolfSSL/wolfssh/pull/670
*   https://github.com/wolfSSL/wolfssh/pull/671