CVE-2024-20456
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 softwar
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’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.
Weakness: CWE-732
Affected products
| Vendor | Product | Category | Matched by |
|---|---|---|---|
| Cisco | Cisco IOS XR Software | Routing & Switching | cna-assigner |
Vendor-reported products (2)
- Cisco · Cisco IOS XR Software
- cisco · ios_xr_software
Vendor advisory
cisco-sa-xr-secure-boot-quD5g8Ap
Cisco IOS XR Software Secure Boot Bypass Vulnerability
Cisco’s rating: High (advisory CVSS 6.7) · Published Jul 10, 2024
Bug ID: CSCwk58609
The vendor’s rating applies to the whole advisory and can differ from this CVE’s own CVSS severity. Where this comes from