gsd-2015-5600
Vulnerability from gsd
Modified
2023-12-13 01:20
Details
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.
Aliases
Aliases
{
"GSD": {
"alias": "CVE-2015-5600",
"description": "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.",
"id": "GSD-2015-5600",
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"https://access.redhat.com/errata/RHSA-2016:0466",
"https://access.redhat.com/errata/RHSA-2015:2088",
"https://ubuntu.com/security/CVE-2015-5600",
"https://advisories.mageia.org/CVE-2015-5600.html",
"https://alas.aws.amazon.com/cve/html/CVE-2015-5600.html",
"https://linux.oracle.com/cve/CVE-2015-5600.html"
]
},
"gsd": {
"metadata": {
"exploitCode": "unknown",
"remediation": "unknown",
"reportConfidence": "confirmed",
"type": "vulnerability"
},
"osvSchema": {
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"modified": "2023-12-13T01:20:06.221808Z",
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},
"impact": {
"baseMetricV2": {
"cvssV2": {
"accessComplexity": "LOW",
"accessVector": "NETWORK",
"authentication": "NONE",
"availabilityImpact": "COMPLETE",
"baseScore": 8.5,
"confidentialityImpact": "PARTIAL",
"integrityImpact": "NONE",
"vectorString": "AV:N/AC:L/Au:N/C:P/I:N/A:C",
"version": "2.0"
},
"exploitabilityScore": 10.0,
"impactScore": 7.8,
"obtainAllPrivilege": false,
"obtainOtherPrivilege": false,
"obtainUserPrivilege": false,
"severity": "HIGH",
"userInteractionRequired": false
}
},
"lastModifiedDate": "2022-12-13T12:15Z",
"publishedDate": "2015-08-03T01:59Z"
}
}
}
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