CVE-2023-20064
low-risk
Published 2023-03-09
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.
Do I need to act?
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0.22% chance of exploitation
EPSS score — low exploit probability
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
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Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
4
CVSS 4.6/10
Medium
PHYSICAL
/ LOW complexity
Affected Products (1)
Affected Vendors
References (2)
22
/ 100
low-risk
Severity
16/34 · Moderate
Exploitability
1/34 · Minimal
Exposure
5/34 · Minimal