CVE-2019-1859

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.

• cisco sg200-50 firmware (< 1.4.10.6) • cisco sg200-50p firmware (< 1.4.10.6) • cisco sg200-50fp firmware (< 1.4.10.6) • cisco sg200-26 firmware (< 1.4.10.6) • cisco sg200-26p firmware (< 1.4.10.6) • cisco sg200-26fp firmware (< 1.4.10.6) • cisco sg200-18 firmware (< 1.4.10.6) • cisco sg200-10fp firmware (< 1.4.10.6) • cisco sg200-08 firmware (< 1.4.10.6) • cisco sg200-08p firmware (< 1.4.10.6) • cisco sf200-24 firmware (< 1.4.10.6) • cisco sf200-24p firmware (< 1.4.10.6) • cisco sf200-24fp firmware (< 1.4.10.6) • cisco sf200-48 firmware (< 1.4.10.6) • cisco sf200-48p firmware (< 1.4.10.6) • cisco sf302-08pp firmware (< 1.4.10.6) • cisco sf302-08mpp firmware (< 1.4.10.6) • cisco sg300-10pp firmware (< 1.4.10.6) • cisco sg300-10mpp firmware (< 1.4.10.6) • cisco sf300-24pp firmware (< 1.4.10.6) • cisco sf300-48pp firmware (< 1.4.10.6) • cisco sg300-28pp firmware (< 1.4.10.6) • cisco sf300-08 firmware (< 1.4.10.6) • cisco sf300-48p firmware (< 1.4.10.6) • cisco sg300-10mp firmware (< 1.4.10.6) • cisco sg300-10p firmware (< 1.4.10.6) • cisco sg300-10 firmware (< 1.4.10.6) • cisco sg300-28p firmware (< 1.4.10.6) • cisco sf300-24p firmware (< 1.4.10.6) • cisco sf302-08mp firmware (< 1.4.10.6) • cisco sg300-28 firmware (< 1.4.10.6) • cisco sf300-48 firmware (< 1.4.10.6) • cisco sg300-20 firmware (< 1.4.10.6) • cisco sf302-08p firmware (< 1.4.10.6) • cisco sg300-52 firmware (< 1.4.10.6) • cisco sf300-24 firmware (< 1.4.10.6) • cisco sf302-08 firmware (< 1.4.10.6) • cisco sf300-24mp firmware (< 1.4.10.6) • cisco sg300-10sfp firmware (< 1.4.10.6) • cisco sg300-28mp firmware (< 1.4.10.6) • cisco sg300-52p firmware (< 1.4.10.6) • cisco sg300-52mp firmware (< 1.4.10.6) • cisco sg500-28mpp firmware (< 1.4.10.6) • cisco sg500-52mp firmware (< 1.4.10.6) • cisco sg500xg-8f8t firmware (< 1.4.10.6) • cisco sf500-24 firmware (< 1.4.10.6) • cisco sf500-24p firmware (< 1.4.10.6) • cisco sf500-48 firmware (< 1.4.10.6) • cisco sf500-48p firmware (< 1.4.10.6) • cisco sg500-28 firmware (< 1.4.10.6) • cisco sg500-28p firmware (< 1.4.10.6) • cisco sg500-52 firmware (< 1.4.10.6) • cisco sg500-52p firmware (< 1.4.10.6) • cisco sg500x-24 firmware (< 1.4.10.6) • cisco sg500x-24p firmware (< 1.4.10.6) • cisco sg500x-48 firmware (< 1.4.10.6) • cisco sg500x-48p firmware (< 1.4.10.6) • cisco sg250x-24 firmware (< 2.5.0.78) • cisco sg250x-24p firmware (< 2.5.0.78) • cisco sg250x-48 firmware (< 2.5.0.78) … and 54 more