CVE-2023-20064

Cisco IOS XR Software Bootloader Unauthenticated Information Disclosure Vulnerability

Description

A vulnerability in the GRand Unified Bootloader (GRUB) for Cisco IOS XR Software could allow an unauthenticated attacker with physical access to the device to view sensitive files on the console using the GRUB bootloader command line. This vulnerability is due to the inclusion of unnecessary commands within the GRUB environment that allow sensitive files to be viewed. An attacker could exploit this vulnerability by being connected to the console port of the Cisco IOS XR device when the device is power-cycled. A successful exploit could allow the attacker to view sensitive files that could be used to conduct additional attacks against the device.

Category

4.6
CVSS
Severity: Medium
CVSS 3.1 •
EPSS 0.09%
Vendor Advisory cisco.com
Affected: Cisco Cisco IOS XR Software
Published at:
Updated at:

References

Link Tags
https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-iosxr-load-infodisc-9rdOr5Fq vendor advisory

Frequently Asked Questions

What is the severity of CVE-2023-20064?
CVE-2023-20064 has been scored as a medium severity vulnerability.
How to fix CVE-2023-20064?
To fix CVE-2023-20064, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2023-20064 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2023-20064 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2023-20064?
CVE-2023-20064 affects Cisco Cisco IOS XR Software .
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