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Cisco IOS XR Software Bootloader Unauthenticated Information Disclosure Vulnerability (Cisco Cisco IOS XR Software)

CVE-2023-20064
MEDIUM 4.6

At a glance

Source
NVD
EPSS
EPSS 0.26 % · percentile 18 ()
State
PUBLISHED
Published
Updated
Assigner
cisco
NVD status
Modified

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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.

Weaknesses (CWE)

  • CWE-862 — Missing Authorization

References

Scores

VersionScoreVectorScored by
CVSS 3.1MEDIUM 4.6CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:Ncisco
CVSS 3.1MEDIUM 4.6CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:NNVD · psirt@cisco.com (Secondary)
CVSS 3.1MEDIUM 4.6CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:NNVD · nvd@nist.gov (Primary)

European references

Affected configurations (NVD CPE)

Affected products

ProductVersions
Cisco · Cisco IOS XR Softwareaffected n/a

Sources

SourceLicence
CVE List (CVEProject cvelistV5)CVE Program Terms of Use
EPSS (FIRST.org)FIRST — attribution requested
ENISA EUVDENISA — reproduction authorised, source acknowledged
NVD (NIST) via fkie-cad/nvd-json-data-feedsPublic domain — this product uses data from the NVD API but is not endorsed or certified by the NVD