cisco-sa-nxos-image-sig-bypas-pQDRQvjL: Cisco NX-OS Software Image Verification Bypass Vulnerability
A vulnerability in the bootloader of Cisco NX-OS Software could allow an unauthenticated attacker with physical access to an affected device, or an authenticated, local attacker with administrative credentials, to bypass NX-OS image signature verification. This vulnerability is due to insecure bootloader settings. An attacker could exploit this vulnerability by executing a series of bootloader commands. A successful exploit could allow the attacker to bypass NX-OS image signature verification and load unverified software.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-nxos-image-sig-bypas-pQDRQvjL
Affected Software
Event History
Frequently Asked Questions
What is the severity of cisco-sa-nxos-image-sig-bypas-pQDRQvjL?
The severity of cisco-sa-nxos-image-sig-bypas-pQDRQvjL is high due to the potential for unauthorized access to system functionality.
What systems are affected by cisco-sa-nxos-image-sig-bypas-pQDRQvjL?
Cisco NX-OS Software is the affected system by cisco-sa-nxos-image-sig-bypas-pQDRQvjL.
How do I fix cisco-sa-nxos-image-sig-bypas-pQDRQvjL?
To fix cisco-sa-nxos-image-sig-bypas-pQDRQvjL, ensure you update to the latest version of Cisco NX-OS that addresses the vulnerability.
Can an attacker exploit cisco-sa-nxos-image-sig-bypas-pQDRQvjL remotely?
No, an attacker must have physical access to the device or be an authenticated local user to exploit cisco-sa-nxos-image-sig-bypas-pQDRQvjL.
What type of attacks are possible due to cisco-sa-nxos-image-sig-bypas-pQDRQvjL?
An attacker could potentially bypass NX-OS image signature verification, allowing unauthorized manipulation of the operating system.