cisco-sa-20190515-nxos-spsv: Cisco MDS 9700 Series Multilayer Directors and Nexus 7000/7700 Series Switches Software Patch Signature Verification Vulnerability
First published: Wed May 15 2019(Updated: )
A vulnerability in the Image Signature Verification feature of Cisco NX-OS Software could allow an authenticated, local attacker with administrator-level credentials to install a malicious software patch on an affected device. The vulnerability is due to improper verification of digital signatures for patch images. An attacker could exploit this vulnerability by loading an unsigned software patch on an affected device. A successful exploit could allow the attacker to boot a malicious software patch image. 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-spsv
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Cisco NX-OS Software | =8.1<8.1(1a)=7.3<8.1(1a) | 8.1(1a) 8.1(1a) |
| Cisco NX-OS Software |
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Reference Links
Frequently Asked Questions
What is the vulnerability ID for this Cisco advisory?
The vulnerability ID for this Cisco advisory is cisco-sa-20190515-nxos-spsv.
What is the severity of cisco-sa-20190515-nxos-spsv?
The severity of cisco-sa-20190515-nxos-spsv is medium with a CVSS score of 6.7.
How does cisco-sa-20190515-nxos-spsv impact affected devices?
cisco-sa-20190515-nxos-spsv allows an authenticated, local attacker with administrator-level credentials to install a malicious software patch on affected devices.
Which version of Cisco NX-OS Software is affected by cisco-sa-20190515-nxos-spsv?
Cisco NX-OS Software version 8.1 up to exclusive 8.1(1a) and version 7.3 are affected by cisco-sa-20190515-nxos-spsv.
How can I fix cisco-sa-20190515-nxos-spsv?
To fix cisco-sa-20190515-nxos-spsv, it is recommended to upgrade to a fixed software release as mentioned in the Cisco advisory.
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