CVE-2021-1591
Summary
| CVE | CVE-2021-1591 |
|---|---|
| State | PUBLIC |
| Assigner | [email protected] |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2021-08-25 20:15:00 UTC |
| Updated | 2023-11-07 03:28:00 UTC |
| Description | A vulnerability in the EtherChannel port subscription logic of Cisco Nexus 9500 Series Switches could allow an unauthenticated, remote attacker to bypass access control list (ACL) rules that are configured on an affected device. This vulnerability is due to oversubscription of resources that occurs when applying ACLs to port channel interfaces. An attacker could exploit this vulnerability by attempting to access network resources that are protected by the ACL. A successful exploit could allow the attacker to access network resources that would be protected by the ACL that was applied on the port channel interface. |
Risk And Classification
Problem Types: NVD-CWE-Other
NVD Known Affected Configurations (CPE 2.3)
| Type | Vendor | Product | Version | Update | Edition | Language |
|---|---|---|---|---|---|---|
| Hardware | Cisco | Nexus 9500 16-slot | - | All | All | All |
| Hardware | Cisco | Nexus 9500 4-slot | - | All | All | All |
| Hardware | Cisco | Nexus 9500 8-slot | - | All | All | All |
| Hardware | Cisco | Nexus 9504 | - | All | All | All |
| Hardware | Cisco | Nexus 9508 | - | All | All | All |
| Hardware | Cisco | Nexus 9516 | - | All | All | All |
| Operating System | Cisco | Nx-os | 9.3\(4\) | All | All | All |
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| Cisco Nexus 9500 Series Switches Access Control List Bypass Vulnerability | CISCO | tools.cisco.com | |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
No vendor comments have been submitted for this CVE.
Legacy QID Mappings
- 317017 Cisco Nexus 9500 Series Switches Access Control List Bypass Vulnerability (cisco-sa-nexus-acl-vrvQYPVe)