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.
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History
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Information
Published : 2015-08-03 01:59
Updated : 2024-02-28 15:21
NVD link : CVE-2015-5600
Mitre link : CVE-2015-5600
CVE.ORG link : CVE-2015-5600
JSON object : View
Products Affected
openbsd
- openssh
CWE
CWE-264
Permissions, Privileges, and Access Controls