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.

No CVSS v4.0

Attack Vector Physical

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact High

Integrity Impact None

Availability Impact None

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

The EPSS score is 0.00143.

Exploitation none

Automatable no

Technical Impact partial

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
Cisco Cisco IOS XR Software affected
Version Status Constraints
n/a affected —

Configuration 1 [-]

AND
cpe:2.3:o:cisco:ios_xr:*:*:*:*:*:*:*:*
OR cpe:2.3:h:cisco:asr_9000v-v2:-:*:*:*:*:*:x64:*
cpe:2.3:h:cisco:asr_9001:-:*:*:*:*:*:x64:*
cpe:2.3:h:cisco:asr_9006:-:*:*:*:*:*:x64:*
cpe:2.3:h:cisco:asr_9010:-:*:*:*:*:*:x64:*
cpe:2.3:h:cisco:asr_9901:-:*:*:*:*:*:x64:*
cpe:2.3:h:cisco:asr_9902:-:*:*:*:*:*:x64:*
cpe:2.3:h:cisco:asr_9903:-:*:*:*:*:*:x64:*
cpe:2.3:h:cisco:asr_9904:-:*:*:*:*:*:x64:*
cpe:2.3:h:cisco:asr_9906:-:*:*:*:*:*:x64:*
cpe:2.3:h:cisco:asr_9910:-:*:*:*:*:*:x64:*
cpe:2.3:h:cisco:asr_9912:-:*:*:*:*:*:x64:*
cpe:2.3:h:cisco:asr_9922:-:*:*:*:*:*:x64:*
cpe:2.3:h:cisco:ios_xrv_9000:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:ncs_1001:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:ncs_1002:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:ncs_1004:-:*:*:*:*:*:*:*

Configuration 2 [-]

AND
cpe:2.3:o:cisco:ios_xr:*:*:*:*:*:*:*:*
OR cpe:2.3:h:cisco:nc57-18dd-se:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:nc57-24dd:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:nc57-36h-se:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:nc57-36h6d-s:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:ncs_540:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:ncs_540_fronthaul:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:ncs_5501:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:ncs_5501-se:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:ncs_5502:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:ncs_5502-se:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:ncs_5508:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:ncs_5516:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:ncs_560-4:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:ncs_560-7:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:ncs_57b1-5dse-sys:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:ncs_57b1-6d24-sys:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:ncs_57c1-48q6-sys:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:ncs_57c3-mod-sys:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:ncs_57c3-mods-sys:-:*:*:*:*:*:*:*

Configuration 3 [-]

AND
cpe:2.3:o:cisco:ios_xr:*:*:*:*:*:*:*:*
OR cpe:2.3:h:cisco:ncs_5001:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:ncs_5002:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:ncs_5011:-:*:*:*:*:*:*:*

Configuration 4 [-]

AND
cpe:2.3:o:cisco:ios_xr:*:*:*:*:*:*:*:*
cpe:2.3:h:cisco:ncs_6000:-:*:*:*:*:*:*:*

No data.

No data.

Project Subscriptions

Vendors Products
Cisco Subscribe
Asr 9000v-v2 Subscribe
Asr 9001 Subscribe
Asr 9006 Subscribe
Asr 9010 Subscribe
Asr 9901 Subscribe
Asr 9902 Subscribe
Asr 9903 Subscribe
Asr 9904 Subscribe
Asr 9906 Subscribe
Asr 9910 Subscribe
Asr 9912 Subscribe
Asr 9922 Subscribe
Ios Xr Subscribe
Ios Xrv 9000 Subscribe
Nc57-18dd-se Subscribe
Nc57-24dd Subscribe
Nc57-36h-se Subscribe
Nc57-36h6d-s Subscribe
Ncs 1001 Subscribe
Ncs 1002 Subscribe
Ncs 1004 Subscribe
Ncs 5001 Subscribe
Ncs 5002 Subscribe
Ncs 5011 Subscribe
Ncs 540 Subscribe
Ncs 540 Fronthaul Subscribe
Ncs 5501 Subscribe
Ncs 5501-se Subscribe
Ncs 5502 Subscribe
Ncs 5502-se Subscribe
Ncs 5508 Subscribe
Ncs 5516 Subscribe
Ncs 560-4 Subscribe
Ncs 560-7 Subscribe
Ncs 57b1-5dse-sys Subscribe
Ncs 57b1-6d24-sys Subscribe
Ncs 57c1-48q6-sys Subscribe
Ncs 57c3-mod-sys Subscribe
Ncs 57c3-mods-sys Subscribe
Ncs 6000 Subscribe
Advisories
Source ID Title
EUVD EUVD EUVD-2023-24243 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.
Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-iosxr-load-infodisc-9rdOr5Fq cve-icon cve-icon
History

Fri, 25 Oct 2024 16:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Projects

Sign in to view the affected projects.

cve-icon MITRE

Status: PUBLISHED

Assigner: cisco

Published:

Updated: 2024-10-25T16:03:12.091Z

Reserved: 2022-10-27T00:00:00

Link: CVE-2023-20064

cve-icon Vulnrichment

Updated: 2024-08-02T08:57:35.558Z

cve-icon NVD

Status : Modified

Published: 2023-03-09T22:15:52.277

Modified: 2024-11-21T07:40:28.087

Link: CVE-2023-20064

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses