CVE-2024-20456

Published Jul 10, 2024 CVSS 3.1 · 6.7 Medium EPSS < 1% KEV · Not listed
Description
A vulnerability in the boot process of Cisco IOS XR Software could allow an authenticated, local attacker with high privileges to bypass the Cisco Secure Boot functionality and load unverified software on an affected device. To exploit this successfully, the attacker must have root-system privileges on the affected device.

This vulnerability is due to an error in the software build process. An attacker could exploit this vulnerability by manipulating the system&rsquo;s configuration options to bypass some of the integrity checks that are performed during the booting process. A successful exploit could allow the attacker to control the boot configuration, which could enable them to bypass of the requirement to run Cisco signed images or alter the security properties of the running system.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
EUVD EUVD EUVD-2024-18171 A vulnerability in the boot process of Cisco IOS XR Software could allow an authenticated, local attacker with high privileges to bypass the Cisco Secure Boot functionality and load unverified software on an affected device. To exploit this successfully, the attacker must have root-system privileges on the affected device. This vulnerability is due to an error in the software build process. An attacker could exploit this vulnerability by manipulating the system&rsquo;s configuration options to bypass some of the integrity checks that are performed during the booting process. A successful exploit could allow the attacker to control the boot configuration, which could enable them to bypass of the requirement to run Cisco signed images or alter the security properties of the running system.
History
Type Values Removed Values Added
First Time appeared Cisco 8011-4g24y4h-i
Cisco 8101-32fh
Cisco 8101-32fh-o
Cisco 8101-32h-o
Cisco 8102-28fh-dpu-o
Cisco 8102-64h
Cisco 8102-64h-o
Cisco 8111-32eh-o
Cisco 8122-64eh-o
Cisco 8122-64ehf-o
Cisco 8201
Cisco 8201-24h8fh
Cisco 8201-32fh
Cisco 8201-32fh-o
Cisco 8202
Cisco 8202-32fh-m
Cisco 8212-48fh-m
Cisco 8404
Cisco 8501-sys-mt
Cisco 8608
Cisco 8700
Cisco 8711-32fh-m
Cisco 8712-mod-m
Cisco 8804
Cisco 8808
Cisco 8812
Cisco 8818
Cisco ios Xr
Cisco ncs 1010
Cisco ncs 1014
Cisco ncs 540-12z20g-sys-a
Cisco ncs 540-12z20g-sys-d
Cisco ncs 540-24q2c2dd-sys
Cisco ncs 540-24q8l2dd-sys
Cisco ncs 540-24z8q2c-sys
Cisco ncs 540-28z4c-sys-a
Cisco ncs 540-28z4c-sys-d
Cisco ncs 540-6z14s-sys-d
Cisco ncs 540-6z18g-sys-a
Cisco ncs 540-6z18g-sys-d
Cisco ncs 540-acc-sys
Cisco ncs 540-fh-agg
Cisco ncs 540-fh-csr-sys
Cisco ncs 540x-12z16g-sys-a
Cisco ncs 540x-12z16g-sys-d
Cisco ncs 540x-16z4g8q2c-a
Cisco ncs 540x-16z4g8q2c-d
Cisco ncs 540x-16z8q2c-d
Cisco ncs 540x-4z14g2q-a
Cisco ncs 540x-4z14g2q-d
Cisco ncs 540x-6z18g-sys-a
Cisco ncs 540x-6z18g-sys-d
Cisco ncs 540x-8z16g-sys-a
Cisco ncs 540x-8z16g-sys-d
Cisco ncs 540x-acc-sys
Cisco ncs 57b1-5dse-sys
Cisco ncs 57b1-6d24-sys
Cisco ncs 57c1-48q6-sys
Cisco ncs 57d2-18dd-sys
CPEs cpe:2.3:h:cisco:8011-4g24y4h-i:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:8101-32fh-o:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:8101-32fh:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:8101-32h-o:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:8102-28fh-dpu-o:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:8102-64h-o:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:8102-64h:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:8111-32eh-o:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:8122-64eh-o:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:8122-64ehf-o:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:8201-24h8fh:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:8201-32fh-o:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:8201-32fh:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:8201:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:8202-32fh-m:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:8202:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:8212-48fh-m:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:8404:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:8501-sys-mt:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:8608:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:8700:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:8711-32fh-m:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:8712-mod-m:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:8804:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:8808:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:8812:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:8818:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:ncs_1010:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:ncs_1014:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:ncs_540-12z20g-sys-a:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:ncs_540-12z20g-sys-d:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:ncs_540-24q2c2dd-sys:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:ncs_540-24q8l2dd-sys:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:ncs_540-24z8q2c-sys:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:ncs_540-28z4c-sys-a:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:ncs_540-28z4c-sys-d:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:ncs_540-6z14s-sys-d:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:ncs_540-6z18g-sys-a:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:ncs_540-6z18g-sys-d:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:ncs_540-acc-sys:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:ncs_540-fh-agg:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:ncs_540-fh-csr-sys:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:ncs_540x-12z16g-sys-a:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:ncs_540x-12z16g-sys-d:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:ncs_540x-16z4g8q2c-a:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:ncs_540x-16z4g8q2c-d:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:ncs_540x-16z8q2c-d:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:ncs_540x-4z14g2q-a:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:ncs_540x-4z14g2q-d:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:ncs_540x-6z18g-sys-a:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:ncs_540x-6z18g-sys-d:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:ncs_540x-8z16g-sys-a:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:ncs_540x-8z16g-sys-d:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:ncs_540x-acc-sys:-:*:*:*:*:*:*:*
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_57d2-18dd-sys:-:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios_xr:24.2.1:*:*:*:*:*:*:*
Vendors & Products Cisco 8011-4g24y4h-i
Cisco 8101-32fh
Cisco 8101-32fh-o
Cisco 8101-32h-o
Cisco 8102-28fh-dpu-o
Cisco 8102-64h
Cisco 8102-64h-o
Cisco 8111-32eh-o
Cisco 8122-64eh-o
Cisco 8122-64ehf-o
Cisco 8201
Cisco 8201-24h8fh
Cisco 8201-32fh
Cisco 8201-32fh-o
Cisco 8202
Cisco 8202-32fh-m
Cisco 8212-48fh-m
Cisco 8404
Cisco 8501-sys-mt
Cisco 8608
Cisco 8700
Cisco 8711-32fh-m
Cisco 8712-mod-m
Cisco 8804
Cisco 8808
Cisco 8812
Cisco 8818
Cisco ios Xr
Cisco ncs 1010
Cisco ncs 1014
Cisco ncs 540-12z20g-sys-a
Cisco ncs 540-12z20g-sys-d
Cisco ncs 540-24q2c2dd-sys
Cisco ncs 540-24q8l2dd-sys
Cisco ncs 540-24z8q2c-sys
Cisco ncs 540-28z4c-sys-a
Cisco ncs 540-28z4c-sys-d
Cisco ncs 540-6z14s-sys-d
Cisco ncs 540-6z18g-sys-a
Cisco ncs 540-6z18g-sys-d
Cisco ncs 540-acc-sys
Cisco ncs 540-fh-agg
Cisco ncs 540-fh-csr-sys
Cisco ncs 540x-12z16g-sys-a
Cisco ncs 540x-12z16g-sys-d
Cisco ncs 540x-16z4g8q2c-a
Cisco ncs 540x-16z4g8q2c-d
Cisco ncs 540x-16z8q2c-d
Cisco ncs 540x-4z14g2q-a
Cisco ncs 540x-4z14g2q-d
Cisco ncs 540x-6z18g-sys-a
Cisco ncs 540x-6z18g-sys-d
Cisco ncs 540x-8z16g-sys-a
Cisco ncs 540x-8z16g-sys-d
Cisco ncs 540x-acc-sys
Cisco ncs 57b1-5dse-sys
Cisco ncs 57b1-6d24-sys
Cisco ncs 57c1-48q6-sys
Cisco ncs 57d2-18dd-sys

Subscriptions

Weaknesses

Sources

Status
PUBLISHED
Assigner
cisco
Published
Updated
Aug 1, 2024, 9:59 PM
Reserved
Nov 8, 2023, 3:08 PM
Status
Analyzed
Published
Jul 10, 2024, 4:15 PM
Modified
Jun 17, 2026, 7:07 AM