RCE in Cisco Nexus 3000

CVE-2019-1606

A vulnerability in the CLI of Cisco NX-OS Software could allow an authenticated, local attacker to execute arbitrary commands on the underlying operating system of an affected device. The vulnerability is due to insufficient validation of arguments passed to certain CLI commands. An attacker could exploit this vulnerability by including malicious input as the argument of an affected command. A successful exploit could allow the attacker to execute arbitrary commands on the underlying operating system with elevated privileges. An attacker would need valid user credentials to exploit this vulnerability. Nexus 3000, 3500, and Nexus 9000 Series Switches in Standalone NX-OS Mode are affected in versions prior to 7.0(3)I7(4).

Vulnerability class: Command Injection (OS Command Injection)

EPSS: 0.005 (39.1th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

Affected products

Weakness classification (CWE)

References

  • psirt@cisco.com (x_refsource_CISCO, vendor-advisory, Patch, Vendor Advisory)
  • psirt@cisco.com (VDB Entry, Third Party Advisory, vdb-entry, x_refsource_BID)

Frequently asked questions

What is CVE-2019-1606?
CVE-2019-1606 is a high-severity vulnerability in Cisco Nexus 3000, classified under Command Injection. CVSS score: 7.8/10. Published 2019-03-08.
How severe is CVE-2019-1606?
High severity. CVSS v3 base score is 7.8 out of 10.