CVE-2019-1804

CVSS V2 High 10 CVSS V3 Critical 9.8
Description
A vulnerability in the SSH key management for the Cisco Nexus 9000 Series Application Centric Infrastructure (ACI) Mode Switch Software could allow an unauthenticated, remote attacker to connect to the affected system with the privileges of the root user. The vulnerability is due to the presence of a default SSH key pair that is present in all devices. An attacker could exploit this vulnerability by opening an SSH connection via IPv6 to a targeted device using the extracted key materials. An exploit could allow the attacker to access the system with the privileges of the root user. This vulnerability is only exploitable over IPv6; IPv4 is not vulnerable.
Overview
  • CVE ID
  • CVE-2019-1804
  • Assigner
  • ykramarz@cisco.com
  • Vulnerability Status
  • Analyzed
  • Published Version
  • 2019-05-03T17:29:00
  • Last Modified Date
  • 2021-11-03T19:57:21
Weakness Enumerations
CWE URL
CWE-1188 http://cwe.mitre.org/data/definitions/1188.html
CPE Configuration (Product)
CPE Vulnerable Operator Version Start Version End
AND
cpe:2.3:o:cisco:nexus_9332pq_firmware:14.0\(3d\):*:*:*:*:*:*:* 1 OR
cpe:2.3:h:cisco:nexus_9332pq:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:cisco:nexus_93180yc-ex_firmware:14.0\(3d\):*:*:*:*:*:*:* 1 OR
cpe:2.3:h:cisco:nexus_93180yc-ex:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:cisco:nexus_93128tx_firmware:14.0\(3d\):*:*:*:*:*:*:* 1 OR
cpe:2.3:h:cisco:nexus_93128tx:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:cisco:nexus_93120tx_firmware:14.0\(3d\):*:*:*:*:*:*:* 1 OR
cpe:2.3:h:cisco:nexus_93120tx:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:cisco:nexus_93108tc-ex_firmware:14.0\(3d\):*:*:*:*:*:*:* 1 OR
cpe:2.3:h:cisco:nexus_93108tc-ex:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:cisco:nexus_9516_firmware:14.0\(3d\):*:*:*:*:*:*:* 1 OR
cpe:2.3:h:cisco:nexus_9516:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:cisco:nexus_9508_firmware:14.0\(3d\):*:*:*:*:*:*:* 1 OR
cpe:2.3:h:cisco:nexus_9508:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:cisco:nexus_9504_firmware:14.0\(3d\):*:*:*:*:*:*:* 1 OR
cpe:2.3:h:cisco:nexus_9504:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:cisco:nexus_9500_firmware:14.0\(3d\):*:*:*:*:*:*:* 1 OR
cpe:2.3:h:cisco:nexus_9500:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:cisco:nexus_9396tx_firmware:14.0\(3d\):*:*:*:*:*:*:* 1 OR
cpe:2.3:h:cisco:nexus_9396tx:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:cisco:nexus_9396px_firmware:14.0\(3d\):*:*:*:*:*:*:* 1 OR
cpe:2.3:h:cisco:nexus_9396px:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:cisco:nexus_9372tx_firmware:14.0\(3d\):*:*:*:*:*:*:* 1 OR
cpe:2.3:h:cisco:nexus_9372tx:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:cisco:nexus_9372px_firmware:14.0\(3d\):*:*:*:*:*:*:* 1 OR
cpe:2.3:h:cisco:nexus_9372px:-:*:*:*:*:*:*:* 0 OR
CVSS Version 2
  • Version
  • 2.0
  • Vector String
  • AV:N/AC:L/Au:N/C:C/I:C/A:C
  • Access Vector
  • NETWORK
  • Access Compatibility
  • LOW
  • Authentication
  • NONE
  • Confidentiality Impact
  • COMPLETE
  • Integrity Impact
  • COMPLETE
  • Availability Impact
  • COMPLETE
  • Base Score
  • 10
  • Severity
  • HIGH
  • Exploitability Score
  • 10
  • Impact Score
  • 10
CVSS Version 3
  • Version
  • 3.1
  • Vector String
  • CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
  • Attack Vector
  • NETWORK
  • Attack Compatibility
  • LOW
  • Privileges Required
  • NONE
  • User Interaction
  • NONE
  • Scope
  • UNCHANGED
  • Confidentiality Impact
  • HIGH
  • Availability Impact
  • HIGH
  • Base Score
  • 9.8
  • Base Severity
  • CRITICAL
  • Exploitability Score
  • 3.9
  • Impact Score
  • 5.9
References
Reference URL Reference Tags
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190501-nexus9k-sshkey Vendor Advisory
Sources
Source Name Source URL
NIST https://nvd.nist.gov/vuln/detail/CVE-2019-1804
MITRE https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-1804
History
Created Old Value New Value Data Type Notes
2022-05-10 06:48:29 Added to TrackCVE
2022-12-03 20:21:05 psirt@cisco.com ykramarz@cisco.com CVE Assigner updated
2022-12-03 20:21:05 2019-05-03T17:29Z 2019-05-03T17:29:00 CVE Published Date updated
2022-12-03 20:21:05 2021-11-03T19:57:21 CVE Modified Date updated
2022-12-03 20:21:05 Analyzed Vulnerability Status updated