Cisco Nexus 9500 Series Switches Access Control List Bypass (CVE-2021-1591)

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...

CVE-2021-1591

creationtimestamp| type| source ---|---|--- 2021-09-05 20:30:34+00:00| published-proof-of-concept| https://t.me/CyberSecurityTechnologies/4232...

CVE-2021-1591 Cisco Nexus 9500 Series Switches Access Control List Bypass Vulnerability

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...

CVE-2021-1591

CVE-2021-1591 affects Cisco Nexus 9500 Series Switches. The issue is in the EtherChannel port subscription logic where ACLs applied to port-channel interfaces can be oversubscribed, allowing an unauthenticated remote attacker to bypass ACL rules configured on the device. Cisco’s advisory (Cisco N...