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 with administrator credentials to execute arbitrary commands on the underlying operating system of an affected device with elevated privileges. 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. 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-fxos-cmdinj-1780
Affected Software | Affected Version | How to fix |
---|---|---|
Cisco FX-OS | =2.4<2.4.1.122=2.3<2.3.1.130=Prior to 2.3<2.3.1.130 | 2.4.1.122 2.3.1.130 2.3.1.130 |
Cisco NX-OS | =8.1<8.1(1b)=7.3<8.1(1b)=6.2<6.2(25)=5.2<6.2(25) | 8.1(1b) 8.1(1b) 6.2(25) 6.2(25) |
Cisco NX-OS | ||
Cisco NX-OS | =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 | =6.2<6.2(22)=Prior to 6.2<6.2(22) | 6.2(22) 6.2(22) |
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The vulnerability ID is cisco-sa-20190515-nxos-fxos-cmdinj-1780.
The severity of this vulnerability is medium with a CVSS score of 4.2.
The Cisco FXOS Software versions 2.4 and prior, and Cisco NX-OS Software versions 8.1.1b, 7.3, 6.2, 5.2, 6.0(2)A8, and 6.2 are affected by this vulnerability.
An authenticated, local attacker with administrator credentials can exploit this vulnerability by executing arbitrary commands on the underlying operating system of an affected device with elevated privileges.
You can find more information about this vulnerability on the Cisco Security Advisory page: https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190515-nxos-fxos-cmdinj-1780