A vulnerability in the implementation of Border Gateway Protocol (BGP) Message Digest 5 (MD5) authentication in Cisco NX-OS Software could allow an unauthenticated, remote attacker to bypass MD5 authentication and establish a BGP connection with the device. The vulnerability occurs because the BGP MD5 authentication is bypassed if the peer does not have MD5 authentication configured, the NX-OS device does have BGP MD5 authentication configured, and the NX-OS BGP virtual routing and forwarding (VRF) name is configured to be greater than 19 characters. An attacker could exploit this vulnerability by attempting to establish a BGP session with the NX-OS peer. A successful exploit could allow the attacker to establish a BGP session with the NX-OS device without MD5 authentication. The Cisco implementation of the BGP protocol accepts incoming BGP traffic only from explicitly configured peers. To exploit this vulnerability, an attacker must send the malicious packets over a TCP connection that appears to come from a trusted BGP peer. To do so, the attacker must obtain information about the BGP peers in the affected system’s trusted network.
This vulnerability carries a HIGH severity rating with a CVSS v3.1 score of 8.2, indicating it can be exploited remotely over the network with relatively low complexity without requiring user interaction and does not require pre-existing privileges . The vulnerability impacts limited data confidentiality, integrity (unauthorized modifications), for affected systems. Impacting 65 products from cisco, from cisco, from cisco and 62 others, organizations running these solutions should prioritize assessment and patching.
Reported in 2020, 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.
2020-02-26T17:15:12.673
2024-11-21T05:30:27.747
Modified
CVSSv3.1: 8.2 (HIGH)
AV:N/AC:M/Au:N/C:N/I:P/A:N
8.6
2.9
| Type | Vendor | Product | Version/Range | Vulnerable? |
|---|---|---|---|---|
| Operating System | cisco | nx-os | 9.2\(1\) | Yes |
| Operating System | cisco | nx-os | 9.2\(2\) | Yes |
| Operating System | cisco | nx-os | 9.2\(3\) | Yes |
| Operating System | cisco | nx-os | 9.3\(1\) | Yes |
| Hardware | cisco | nexus_3016 | - | No |
| Hardware | cisco | nexus_3048 | - | No |
| Hardware | cisco | nexus_3064 | - | No |
| Hardware | cisco | nexus_3064-t | - | No |
| Hardware | cisco | nexus_31108pc-v | - | No |
| Hardware | cisco | nexus_31108tc-v | - | No |
| Hardware | cisco | nexus_31128pq | - | No |
| Hardware | cisco | nexus_3132c-z | - | No |
| Hardware | cisco | nexus_3132q | - | No |
| Hardware | cisco | nexus_3132q-v | - | No |
| Hardware | cisco | nexus_3132q-xl | - | No |
| Hardware | cisco | nexus_3164q | - | No |
| Hardware | cisco | nexus_3172 | - | No |
| Hardware | cisco | nexus_3172pq-xl | - | No |
| Hardware | cisco | nexus_3172tq | - | No |
| Hardware | cisco | nexus_3172tq-32t | - | No |
| Hardware | cisco | nexus_3172tq-xl | - | No |
| Hardware | cisco | nexus_3232c_ | - | No |
| Hardware | cisco | nexus_3264c-e | - | No |
| Hardware | cisco | nexus_3264q | - | No |
| Hardware | cisco | nexus_3408-s | - | No |
| Hardware | cisco | nexus_34180yc | - | No |
| Hardware | cisco | nexus_3432d-s | - | No |
| Hardware | cisco | nexus_3464c | - | No |
| Hardware | cisco | nexus_3524 | - | No |
| Hardware | cisco | nexus_3524-x | - | No |
| Hardware | cisco | nexus_3524-xl | - | No |
| Hardware | cisco | nexus_3548 | - | No |
| Hardware | cisco | nexus_3548-x | - | No |
| Hardware | cisco | nexus_3548-xl | - | No |
| Hardware | cisco | nexus_36180yc-r | - | No |
| Hardware | cisco | nexus_3636c-r | - | No |
| Hardware | cisco | nexus_9000v | - | No |
| Hardware | cisco | nexus_92160yc-x | - | No |
| Hardware | cisco | nexus_92300yc | - | No |
| Hardware | cisco | nexus_92304qc | - | No |
| Hardware | cisco | nexus_92348gc-x | - | No |
| Hardware | cisco | nexus_9236c | - | No |
| Hardware | cisco | nexus_9272q | - | No |
| Hardware | cisco | nexus_93108tc-ex | - | No |
| Hardware | cisco | nexus_93108tc-fx | - | No |
| Hardware | cisco | nexus_93120tx | - | No |
| Hardware | cisco | nexus_93128tx | - | No |
| Hardware | cisco | nexus_93180lc-ex | - | No |
| Hardware | cisco | nexus_93180yc-ex | - | No |
| Hardware | cisco | nexus_93180yc-fx | - | No |
| Hardware | cisco | nexus_93216tc-fx2 | - | No |
| Hardware | cisco | nexus_93240yc-fx2 | - | No |
| Hardware | cisco | nexus_9332c | - | No |
| Hardware | cisco | nexus_9332pq | - | No |
| Hardware | cisco | nexus_93360yc-fx2 | - | No |
| Hardware | cisco | nexus_9336c-fx2 | - | No |
| Hardware | cisco | nexus_9336pq_aci_spine | - | No |
| Hardware | cisco | nexus_9348gc-fxp | - | No |
| Hardware | cisco | nexus_9364c | - | No |
| Hardware | cisco | nexus_9372px | - | No |
| Hardware | cisco | nexus_9372px-e | - | No |
| Hardware | cisco | nexus_9372tx | - | No |
| Hardware | cisco | nexus_9372tx-e | - | No |
| Hardware | cisco | nexus_9396px | - | No |
| Hardware | cisco | nexus_9396tx | - | No |
| Hardware | cisco | nexus_9504 | - | No |
| Hardware | cisco | nexus_9508 | - | No |
| Hardware | cisco | nexus_9516 | - | 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.