PT-2024-5732 · Cisco · Cisco Ios Xr

Published 2024-07-10 · Updated 2025-08-04 · CVE-2024-20456

Positive Technologies (AI Summary)

CVSS v2.0

6.8

Medium

Base vector

AV:L/AC:L/Au:S/C:C/I:C/A:C

Name of the Vulnerable Software and Affected Versions Cisco IOS XR Software (affected versions not specified)

Description The issue is related to an error in the software build process, allowing 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. An attacker could exploit this vulnerability by manipulating the system’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 the requirement to run Cisco signed images or alter the security properties of the running system.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Incorrect Permission

Weakness Enumeration

CWE-732

Related Identifiers

BDU:2024-06445

CVE-2024-20456

Affected Products

Cisco Ios Xr

References · 10

• https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-xr-secure-boot-quD5g8Ap · Vendor Advisory
• https://bdu.fstec.ru/vul/2024-06445 · Security Note
• https://osv.dev/vulnerability/CVE-2024-20456 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2024-20456 · Security Note
• https://t.me/cvedetector/550 · Telegram Post
• https://cybersecurity-help.cz/vdb/SB2024071078 · Note
• https://twitter.com/VulmonFeeds/status/1811108367877738792 · Twitter Post
• https://t.me/cveNotify/130811 · Telegram Post
• https://t.me/cvenotify/85698 · Telegram Post
• https://twitter.com/CVEnew/status/1811322730651983986 · Twitter Post