Vulnerability Details : CVE-2019-1804
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.
Exploit prediction scoring system (EPSS) score for CVE-2019-1804
Probability of exploitation activity in the next 30 days: 0.34%
Percentile, the proportion of vulnerabilities that are scored at or less: ~ 68 % EPSS Score History EPSS FAQ
CVSS scores for CVE-2019-1804
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source |
|---|---|---|---|---|---|
|
10.0
|
HIGH | AV:N/AC:L/Au:N/C:C/I:C/A:C |
10.0
|
10.0
|
NIST |
|
9.8
|
CRITICAL | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
3.9
|
5.9
|
Cisco Systems, Inc. |
|
9.8
|
CRITICAL | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
3.9
|
5.9
|
NIST |
CWE ids for CVE-2019-1804
-
Assigned by: ykramarz@cisco.com (Secondary)
-
The product initializes or sets a resource with a default that is intended to be changed by the administrator, but the default is not secure.Assigned by: nvd@nist.gov (Primary)
References for CVE-2019-1804
-
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190501-nexus9k-sshkey
Cisco Nexus 9000 Series Fabric Switches Application Centric Infrastructure Mode Default SSH Key VulnerabilityVendor Advisory
Products affected by CVE-2019-1804
- cpe:2.3:o:cisco:nexus_9332pq_firmware:14.0\(3d\):*:*:*:*:*:*:*
- cpe:2.3:o:cisco:nexus_93180yc-ex_firmware:14.0\(3d\):*:*:*:*:*:*:*
- cpe:2.3:o:cisco:nexus_93128tx_firmware:14.0\(3d\):*:*:*:*:*:*:*
- cpe:2.3:o:cisco:nexus_93120tx_firmware:14.0\(3d\):*:*:*:*:*:*:*
- cpe:2.3:o:cisco:nexus_93108tc-ex_firmware:14.0\(3d\):*:*:*:*:*:*:*
- cpe:2.3:o:cisco:nexus_9516_firmware:14.0\(3d\):*:*:*:*:*:*:*
- cpe:2.3:o:cisco:nexus_9508_firmware:14.0\(3d\):*:*:*:*:*:*:*
- cpe:2.3:o:cisco:nexus_9504_firmware:14.0\(3d\):*:*:*:*:*:*:*
- cpe:2.3:o:cisco:nexus_9500_firmware:14.0\(3d\):*:*:*:*:*:*:*
- cpe:2.3:o:cisco:nexus_9396tx_firmware:14.0\(3d\):*:*:*:*:*:*:*
- cpe:2.3:o:cisco:nexus_9396px_firmware:14.0\(3d\):*:*:*:*:*:*:*
- cpe:2.3:o:cisco:nexus_9372tx_firmware:14.0\(3d\):*:*:*:*:*:*:*
- cpe:2.3:o:cisco:nexus_9372px_firmware:14.0\(3d\):*:*:*:*:*:*:*