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.
This vulnerability carries a MEDIUM severity rating with a CVSS v3.1 score of 4.6, with relatively low complexity without requiring user interaction and does not require pre-existing privileges . The vulnerability impacts confidentiality (data exposure), for affected systems. Impacting 40 products from cisco, from cisco, from cisco and 37 others, organizations running these solutions should prioritize assessment and patching.
Reported in 2023, this vulnerability emerged during an era marked by increased sophistication in supply chain attacks, cloud infrastructure vulnerabilities, and software-as-a-service (SaaS) security challenges. Security practices during this period emphasized zero-trust architectures, container security, and API protection.
2023-03-09T22:15:52.277
2024-11-21T07:40:28.087
Modified
CVSSv3.1: 4.6 (MEDIUM)
| Type | Vendor | Product | Version/Range | Vulnerable? |
|---|---|---|---|---|
| Operating System | cisco | ios_xr | < 7.9.1 | Yes |
| Hardware | cisco | asr_9000v-v2 | - | No |
| Hardware | cisco | asr_9001 | - | No |
| Hardware | cisco | asr_9006 | - | No |
| Hardware | cisco | asr_9010 | - | No |
| Hardware | cisco | asr_9901 | - | No |
| Hardware | cisco | asr_9902 | - | No |
| Hardware | cisco | asr_9903 | - | No |
| Hardware | cisco | asr_9904 | - | No |
| Hardware | cisco | asr_9906 | - | No |
| Hardware | cisco | asr_9910 | - | No |
| Hardware | cisco | asr_9912 | - | No |
| Hardware | cisco | asr_9922 | - | No |
| Hardware | cisco | ios_xrv_9000 | - | No |
| Hardware | cisco | ncs_1001 | - | No |
| Hardware | cisco | ncs_1002 | - | No |
| Hardware | cisco | ncs_1004 | - | No |
| Operating System | cisco | ios_xr | < 7.6.1 | Yes |
| Hardware | cisco | nc57-18dd-se | - | No |
| Hardware | cisco | nc57-24dd | - | No |
| Hardware | cisco | nc57-36h-se | - | No |
| Hardware | cisco | nc57-36h6d-s | - | No |
| Hardware | cisco | ncs_540 | - | No |
| Hardware | cisco | ncs_540_fronthaul | - | No |
| Hardware | cisco | ncs_5501 | - | No |
| Hardware | cisco | ncs_5501-se | - | No |
| Hardware | cisco | ncs_5502 | - | No |
| Hardware | cisco | ncs_5502-se | - | No |
| Hardware | cisco | ncs_5508 | - | No |
| Hardware | cisco | ncs_5516 | - | No |
| Hardware | cisco | ncs_560-4 | - | No |
| Hardware | cisco | ncs_560-7 | - | No |
| Hardware | cisco | ncs_57b1-5dse-sys | - | No |
| Hardware | cisco | ncs_57b1-6d24-sys | - | No |
| Hardware | cisco | ncs_57c1-48q6-sys | - | No |
| Hardware | cisco | ncs_57c3-mod-sys | - | No |
| Hardware | cisco | ncs_57c3-mods-sys | - | No |
| Operating System | cisco | ios_xr | < 7.7.1 | Yes |
| Hardware | cisco | ncs_5001 | - | No |
| Hardware | cisco | ncs_5002 | - | No |
| Hardware | cisco | ncs_5011 | - | No |
| Operating System | cisco | ios_xr | * | Yes |
| Hardware | cisco | ncs_6000 | - | No |
SecUtils normalizes and enriches National Vulnerability Database (NVD) records by standardizing vendor and product identifiers, aggregating vulnerability metadata from both NVD and MITRE sources, and providing structured context for security teams. For cisco's affected products, we extract Common Platform Enumeration (CPE) data, Common Weakness Enumeration (CWE) classifications, CVSS severity metrics, and reference data to enable rapid vulnerability prioritization and asset correlation. This record contains no exploit code, proof-of-concept instructions, or attack methodologies—only defensive intelligence necessary for patch management, risk assessment, and security operations.