A vulnerability in the SSH Server process of Cisco IOS XR Software could allow an authenticated, remote attacker to overwrite and read arbitrary files on the local device. This vulnerability is due to insufficient input validation of arguments that are supplied by the user for a specific file transfer method. An attacker with lower-level privileges could exploit this vulnerability by specifying Secure Copy Protocol (SCP) parameters when authenticating to a device. A successful exploit could allow the attacker to elevate their privileges and retrieve and upload files on a device that they should not have access to.
This vulnerability carries a HIGH severity rating with a CVSS v3.1 score of 8.1, indicating it can be exploited remotely over the network with relatively low complexity without requiring user interaction requiring only low-level privileges . The vulnerability impacts confidentiality (data exposure), integrity (unauthorized modifications), for affected systems. Impacting 36 products from cisco, from cisco, from cisco and 33 others, organizations running these solutions should prioritize assessment and patching.
Reported in 2021, 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.
2021-09-09T05:15:11.103
2024-11-21T06:11:02.320
Modified
CVSSv3.1: 8.1 (HIGH)
AV:N/AC:L/Au:S/C:C/I:C/A:N
8.0
9.2
| Type | Vendor | Product | Version/Range | Vulnerable? |
|---|---|---|---|---|
| Operating System | cisco | ios_xr | < 7.3.2 | Yes |
| Operating System | cisco | ios_xr | < 7.4.1 | 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 |
| Operating System | cisco | ios_xr | < 7.3.2 | Yes |
| Operating System | cisco | ios_xr | < 7.4.1 | Yes |
| Hardware | cisco | ios_xrv | - | No |
| Hardware | cisco | ios_xrv_9000 | - | No |
| Operating System | cisco | ios_xr | < 7.3.2 | Yes |
| Operating System | cisco | ios_xr | < 7.4.1 | Yes |
| Hardware | cisco | ncs_520 | - | No |
| Hardware | cisco | ncs_540 | - | No |
| Hardware | cisco | ncs_540_fronthaul | - | No |
| Hardware | cisco | ncs_560-4 | - | No |
| Hardware | cisco | ncs_560-7 | - | No |
| Operating System | cisco | ios_xr | < 7.3.2 | Yes |
| Operating System | cisco | ios_xr | < 7.4.1 | Yes |
| Hardware | cisco | ncs_5001 | - | No |
| Hardware | cisco | ncs_5002 | - | No |
| Hardware | cisco | ncs_5011 | - | No |
| Operating System | cisco | ios_xr | < 7.3.2 | Yes |
| Operating System | cisco | ios_xr | < 7.4.1 | Yes |
| Hardware | cisco | ncs_4009 | - | No |
| Hardware | cisco | ncs_4016 | - | No |
| Operating System | cisco | ios_xr | < 7.3.2 | Yes |
| Operating System | cisco | ios_xr | < 7.4.1 | Yes |
| 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 |
| Operating System | cisco | ios_xr | < 7.3.2 | Yes |
| Operating System | cisco | ios_xr | < 7.4.1 | Yes |
| Hardware | cisco | ncs_6000 | - | No |
| Hardware | cisco | ncs_6008 | - | No |
| Operating System | cisco | ios_xr | < 7.3.2 | Yes |
| Operating System | cisco | ios_xr | < 7.4.1 | Yes |
| Hardware | cisco | ncs_1001 | - | No |
| Hardware | cisco | ncs_1002 | - | No |
| Hardware | cisco | ncs_1004 | - | 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.