CVE-2024-20456

CWE-732 — Incorrect Permission Assignment4 documents4 sources
Severity
6.7MEDIUM
EPSS
0.0%
top 99.10%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
2
Cisco Cisco IOS XR SoftwareCisco IOS XR
Timeline
PublishedJul 10

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 …

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:HExploitability: 0.8 | Impact: 5.9

Affected Packages2 packages

▶CVEListV5cisco/cisco_ios_xr_software24.2.1
▶NVDcisco/ios_xr24.2.1

🔴Vulnerability Details

2
GHSA
GHSA-32hx-c5c7-mvf8: A vulnerability in the boot process of Cisco IOS XR Software could allow an authenticated, local attacker with high privileges to bypass the Cisco Sec↗2024-07-10
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CVEList
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 Sec↗2024-07-10
▶

📋Vendor Advisories

1
Cisco
Cisco IOS XR Software Secure Boot Bypass Vulnerability↗2024-07-10
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