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
CVE-2015-5600


To clipboard 

{
   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",
      references: [
         "https://www.suse.com/security/cve/CVE-2015-5600.html",
         "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: {
         aliases: [
            "CVE-2015-5600",
         ],
         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.",
         id: "GSD-2015-5600",
         modified: "2023-12-13T01:20:06.221808Z",
         schema_version: "1.4.0",
      },
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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,
               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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