9.8
CVSSv3

CVE-2019-1804

Published: 03/05/2019 Updated: 03/11/2021
CVSS v2 Base Score: 10 | Impact Score: 10 | Exploitability Score: 10
CVSS v3 Base Score: 9.8 | Impact Score: 5.9 | Exploitability Score: 3.9
VMScore: 890
Vector: AV:N/AC:L/Au:N/C:C/I:C/A:C

Vulnerability Summary

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 malicious user 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 malicious user to access the system with the privileges of the root user. This vulnerability is only exploitable over IPv6; IPv4 is not vulnerable.

Vulnerability Trend

Vulnerable Product Search on Vulmon Subscribe to Product

cisco nexus 9332pq firmware 14.0(3d)

cisco nexus 93180yc-ex firmware 14.0(3d)

cisco nexus 93128tx firmware 14.0(3d)

cisco nexus 93120tx firmware 14.0(3d)

cisco nexus 93108tc-ex firmware 14.0(3d)

cisco nexus 9516 firmware 14.0(3d)

cisco nexus 9508 firmware 14.0(3d)

cisco nexus 9504 firmware 14.0(3d)

cisco nexus 9500 firmware 14.0(3d)

cisco nexus 9396tx firmware 14.0(3d)

cisco nexus 9396px firmware 14.0(3d)

cisco nexus 9372tx firmware 14.0(3d)

cisco nexus 9372px firmware 14.0(3d)

Vendor Advisories

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 dev ...

Recent Articles

Sinister secret backdoor found in networking gear perfect for government espionage: The Chinese are – oh no, wait, it's Cisco again
The Register • Iain Thomson in San Francisco • 02 May 2019

Better ban this gear from non-US core networks, right?

Right on cue, Cisco on Wednesday patched a security vulnerability in some of its network switches that can be exploited by miscreants to commandeer the IT equipment and spy on people. This comes immediately after panic this week over a hidden Telnet-based diagnostic interface was found in Huawei gateways. Although that vulnerability was real, irritating, and eventually removed at Vodafone's insistence, it was dubbed by some a hidden backdoor perfect for Chinese spies to exploit to snoop on Weste...