A vulnerability in the Cisco ACI Multi-Site CloudSec encryption feature of Cisco Nexus 9000 Series Fabric Switches in ACI mode could allow an unauthenticated, remote attacker to read or modify intersite encrypted traffic. This vulnerability is due to an issue with the implementation of the ciphers that are used by the CloudSec encryption feature on affected switches. An attacker with an on-path position between the ACI sites could exploit this vulnerability by intercepting intersite encrypted traffic and using cryptanalytic techniques to break the encryption. A successful exploit could allow the attacker to read or modify the traffic that is transmitted between the sites. Cisco has not released and will not release software updates that address this vulnerability.
This vulnerability carries a HIGH severity rating with a CVSS v3.1 score of 7.4, indicating it can be exploited remotely over the network but requires specific conditions to be met without requiring user interaction and does not require pre-existing privileges . The vulnerability impacts confidentiality (data exposure), integrity (unauthorized modifications), for affected systems. Impacting 2 products from cisco, from cisco 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.
2023-07-12T14:15:09.720
2024-11-21T07:40:46.280
Modified
CVSSv3.1: 7.4 (HIGH)
| Type | Vendor | Product | Version/Range | Vulnerable? |
|---|---|---|---|---|
| Operating System | cisco | nx-os | 14.0\(1h\) | Yes |
| Operating System | cisco | nx-os | 14.0\(2c\) | Yes |
| Operating System | cisco | nx-os | 14.0\(3c\) | Yes |
| Operating System | cisco | nx-os | 14.0\(3d\) | Yes |
| Operating System | cisco | nx-os | 14.1\(1i\) | Yes |
| Operating System | cisco | nx-os | 14.1\(1j\) | Yes |
| Operating System | cisco | nx-os | 14.1\(1k\) | Yes |
| Operating System | cisco | nx-os | 14.1\(1l\) | Yes |
| Operating System | cisco | nx-os | 14.1\(2g\) | Yes |
| Operating System | cisco | nx-os | 14.1\(2m\) | Yes |
| Operating System | cisco | nx-os | 14.1\(2o\) | Yes |
| Operating System | cisco | nx-os | 14.1\(2s\) | Yes |
| Operating System | cisco | nx-os | 14.1\(2u\) | Yes |
| Operating System | cisco | nx-os | 14.1\(2w\) | Yes |
| Operating System | cisco | nx-os | 14.1\(2x\) | Yes |
| Operating System | cisco | nx-os | 14.2\(1i\) | Yes |
| Operating System | cisco | nx-os | 14.2\(1j\) | Yes |
| Operating System | cisco | nx-os | 14.2\(1l\) | Yes |
| Operating System | cisco | nx-os | 14.2\(2e\) | Yes |
| Operating System | cisco | nx-os | 14.2\(2f\) | Yes |
| Operating System | cisco | nx-os | 14.2\(2g\) | Yes |
| Operating System | cisco | nx-os | 14.2\(3j\) | Yes |
| Operating System | cisco | nx-os | 14.2\(3l\) | Yes |
| Operating System | cisco | nx-os | 14.2\(3n\) | Yes |
| Operating System | cisco | nx-os | 14.2\(3q\) | Yes |
| Operating System | cisco | nx-os | 14.2\(4i\) | Yes |
| Operating System | cisco | nx-os | 14.2\(4k\) | Yes |
| Operating System | cisco | nx-os | 14.2\(4o\) | Yes |
| Operating System | cisco | nx-os | 14.2\(4p\) | Yes |
| Operating System | cisco | nx-os | 14.2\(5k\) | Yes |
| Operating System | cisco | nx-os | 14.2\(5l\) | Yes |
| Operating System | cisco | nx-os | 14.2\(5n\) | Yes |
| Operating System | cisco | nx-os | 14.2\(6d\) | Yes |
| Operating System | cisco | nx-os | 14.2\(6g\) | Yes |
| Operating System | cisco | nx-os | 14.2\(6h\) | Yes |
| Operating System | cisco | nx-os | 14.2\(6l\) | Yes |
| Operating System | cisco | nx-os | 14.2\(6o\) | Yes |
| Operating System | cisco | nx-os | 14.2\(7f\) | Yes |
| Operating System | cisco | nx-os | 14.2\(7l\) | Yes |
| Operating System | cisco | nx-os | 14.2\(7q\) | Yes |
| Operating System | cisco | nx-os | 14.2\(7r\) | Yes |
| Operating System | cisco | nx-os | 14.2\(7s\) | Yes |
| Operating System | cisco | nx-os | 14.2\(7t\) | Yes |
| Operating System | cisco | nx-os | 14.2\(7u\) | Yes |
| Operating System | cisco | nx-os | 14.2\(7v\) | Yes |
| Operating System | cisco | nx-os | 14.2\(7w\) | Yes |
| Operating System | cisco | nx-os | 15.0\(1k\) | Yes |
| Operating System | cisco | nx-os | 15.0\(1l\) | Yes |
| Operating System | cisco | nx-os | 15.0\(2e\) | Yes |
| Operating System | cisco | nx-os | 15.0\(2h\) | Yes |
| Operating System | cisco | nx-os | 15.1\(1h\) | Yes |
| Operating System | cisco | nx-os | 15.1\(2e\) | Yes |
| Operating System | cisco | nx-os | 15.1\(3e\) | Yes |
| Operating System | cisco | nx-os | 15.1\(4c\) | Yes |
| Operating System | cisco | nx-os | 15.2\(1g\) | Yes |
| Operating System | cisco | nx-os | 15.2\(2e\) | Yes |
| Operating System | cisco | nx-os | 15.2\(2f\) | Yes |
| Operating System | cisco | nx-os | 15.2\(2g\) | Yes |
| Operating System | cisco | nx-os | 15.2\(2h\) | Yes |
| Operating System | cisco | nx-os | 15.2\(3e\) | Yes |
| Operating System | cisco | nx-os | 15.2\(3f\) | Yes |
| Operating System | cisco | nx-os | 15.2\(3g\) | Yes |
| Operating System | cisco | nx-os | 15.2\(4d\) | Yes |
| Operating System | cisco | nx-os | 15.2\(4e\) | Yes |
| Operating System | cisco | nx-os | 15.2\(4f\) | Yes |
| Operating System | cisco | nx-os | 15.2\(5c\) | Yes |
| Operating System | cisco | nx-os | 15.2\(5d\) | Yes |
| Operating System | cisco | nx-os | 15.2\(5e\) | Yes |
| Operating System | cisco | nx-os | 15.2\(6e\) | Yes |
| Operating System | cisco | nx-os | 15.2\(6g\) | Yes |
| Operating System | cisco | nx-os | 15.2\(7f\) | Yes |
| Operating System | cisco | nx-os | 15.2\(7g\) | Yes |
| Operating System | cisco | nx-os | 15.2\(8d\) | Yes |
| Operating System | cisco | nx-os | 16.0\(1g\) | Yes |
| Operating System | cisco | nx-os | 16.0\(1j\) | Yes |
| Operating System | cisco | nx-os | 16.0\(2h\) | Yes |
| Hardware | cisco | nexus_9000_in_aci_mode | - | 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.