Brocade Security Advisory
The kbdint_next_device function in auth2-chall.c in sshd in OpenSSH through 6.9 does not properly restrict the processing of keyboard-interactive devices within a single connection, which makes it easier for remote attackers to conduct brute-force attacks or cause a denial of service (CPU consumption) via a long and duplicative list in the ssh -oKbdInteractiveDevices option, as demonstrated by a modified client that provides a different password for each pam element on this list.
Products Confirmed Not Vulnerable
Brocade FastIron OS, Brocade NetIron OS, Brocade Network Advisor, Brocade ServerIron ADX, Brocade SLX-OS, Brocade Virtual ADX, Brocade Virtual Traffic Manager: Software, and Brocade Virtual Web Application Firewall are confirmed not affected by this vulnerability.
There are no workarounds that address this vulnerability.
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