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CVE PROGRAM SOURCE RECORD7.2 High

CVE-2019-1859

Cisco Small Business Switches Secure Shell Certificate Authentication Bypass Vulnerability

Description

A vulnerability in the Secure Shell (SSH) authentication process of Cisco Small Business Switches software could allow an attacker to bypass client-side certificate authentication and revert to password authentication. The vulnerability exists because OpenSSH mishandles the authentication process. An attacker could exploit this vulnerability by attempting to connect to the device via SSH. A successful exploit could allow the attacker to access the configuration as an administrative user if the default credentials are not changed. There are no workarounds available; however, if client-side certificate authentication is enabled, disable it and use strong password authentication. Client-side certificate authentication is disabled by default.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Cisco Cisco Small Business 200 Series Smart Switches

  • unspecified to < 1.4.10.6affected
  • unspecified to < 2.5.0.78affected

References