CVE-2015-5600 | Date: (C)2015-08-06 (M)2024-04-19 |
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.
CVSS Score and Metrics +CVSS Score and Metrics -CVSS V2 Severity: |
CVSS Score : 8.5 |
Exploit Score: 10.0 |
Impact Score: 7.8 |
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CVSS V2 Metrics: |
Access Vector: NETWORK |
Access Complexity: LOW |
Authentication: NONE |
Confidentiality: PARTIAL |
Integrity: NONE |
Availability: COMPLETE |
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