RCE in Cisco Mds 9000

CVE-2019-1609

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 administrator credentials to exploit this vulnerability. MDS 9000 Series Multilayer Switches are affected in versions prior to 6.2(27), 8.1(1b), and 8.3(2). Nexus 3500 Platform Switches are affected in versions prior to 7.0(3)I7(6). Nexus 3000 Series Switches are affected in versions prior to 7.0(3)I4(9) and 7.0(3)I7(6). Nexus 3600 Platform Switches are affected in versions prior to 7.0(3)F3(5). Nexus 7000 and 7700 Series Switches are affected in versions prior to 6.2(22), 7.3(3)D1(1), 8.2(3), and 8.3(2). Nexus 9000 Series Switches in Standalone NX-OS Mode are affected in versions prior to 7.0(3)I4(9) and7.0(3)I7(6). Nexus 9500 R-Series Line Cards and Fabric Modules are affected in versions prior to 7.0(3)F3(5).

Vulnerability class: Command Injection (OS Command Injection)

EPSS: 0.009 (56.1th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.7 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H.

Affected products

Weakness classification (CWE)

Public proof-of-concept exploits

References

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

Frequently asked questions

What is CVE-2019-1609?
CVE-2019-1609 is a medium-severity vulnerability in Cisco Mds 9000, classified under Command Injection. CVSS score: 6.7/10. Published 2019-03-08.
How severe is CVE-2019-1609?
Medium severity. CVSS v3 base score is 6.7 out of 10.
Is CVE-2019-1609 known to be exploited?
4 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.