CVEvulnerability

CVE-2023-20064

4.6 MEDIUM Published 2023-03-09 Modified 2026-06-17 Official page ↗
Status
Modified
Published
2023-03-09
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.1 ([email protected])
4.6 MEDIUM — CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
CVSS 3.1 ([email protected])
4.6 MEDIUM — CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Weaknesses
CWE-862

Description

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.

Affected configurations

• cisco ios xr (< 7.9.1) • cisco ios xr (< 7.6.1) • cisco ios xr (< 7.7.1) • cisco ios xr

Related

Weakness · CWE (1)

  • CWE-862 Missing Authorization weakness

References