First published: Wed May 15 2019(Updated: )
A vulnerability in the CLI of Cisco FXOS Software and Cisco NX-OS Software could allow an authenticated, local attacker to execute arbitrary commands on the underlying Linux operating system with the privilege level of root. The vulnerability is due to insufficient validation of arguments passed to a specific CLI command on the affected device. 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 Linux operating system with elevated privileges. An attacker would need valid administrator credentials to exploit this vulnerability. Cisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability. This advisory is available at the following link: https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190515-nxos-cmdinj-1795
Affected Software | Affected Version | How to fix |
---|---|---|
Cisco FXOS Software | =2.4<2.4.1.101=2.3<2.3.1.73=2.2<2.2.2.54=2.1<2.2.2.54=2.0<2.0.1.201=Prior 2.0<2.0.1.201 | 2.4.1.101 2.3.1.73 2.2.2.54 2.2.2.54 2.0.1.201 2.0.1.201 |
Cisco NX-OS Software | ||
Cisco NX-OS Software | =6.0(2)A8<6.0(2)A8(11)=Prior to 6.0(2)A8<6.0(2)A8(11) | 6.0(2)A8(11) 6.0(2)A8(11) |
Cisco NX-OS Software | =6.2<6.2(22)=Prior to 6.2<6.2(22) | 6.2(22) 6.2(22) |
Cisco NX-OS Software | =4.0<4.0(1a)=3.2<3.2(3a)=Prior to 3.2<3.2(3a) | 4.0(1a) 3.2(3a) 3.2(3a) |
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The vulnerability ID is cisco-sa-20190515-nxos-cmdinj-1795.
The severity level is medium, with a CVSS score of 6.7.
The vulnerability allows an authenticated, local attacker to execute arbitrary commands on the underlying Linux operating system with root privilege.
The affected software versions include Cisco FXOS Software versions 2.0 to 2.4.1.101, and Cisco NX-OS Software versions 6.0(2)A8 to 6.2(22) and 3.2 to 4.0(1a).
You can find more information about the vulnerability on the Cisco Security Advisory page: https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190515-nxos-cmdinj-1795.