CVE-2024-20291

A vulnerability in the access control list (ACL) programming for port channel subinterfaces of Cisco Nexus 3000 and 9000 Series Switches in standalone NX-OS mode could allow an unauthenticated, remote attacker to send traffic that should be blocked through an affected device. This vulnerability is due to incorrect hardware programming that occurs when configuration changes are made to port channel member ports. An attacker could exploit this vulnerability by attempting to send traffic through an affected device. A successful exploit could allow the attacker to access network resources that should be protected by an ACL that was applied on port channel subinterfaces. It has a CVSS v3.1 base score of 5.8 (MEDIUM).

CVE-2024-20291 has a CVSS v3.1 score of 5.8 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance.

CVE-2024-20291 affects products from cisco, specifically: nexus_3000_in_standalone_nx-os_mode, nexus_3048, nexus_31108pc-v, nexus_31108tc-v, nexus_31128pq, nexus_3132c-z, nexus_3132q-v, nexus_3132q-xl, nexus_3164q, nexus_3172pq, nexus_3172pq-xl, nexus_3172tq, nexus_3172tq-32t, nexus_3172tq-xl, nexus_3232c, nexus_3264c-e, nexus_3264q, nexus_3408-s, nexus_34180yc, nexus_34200yc-sm, nexus_3432d-s, nexus_3464c, nexus_3524-x, nexus_3524-xl, nexus_3548-x, nexus_3548-xl, nexus_36180yc-r, nexus_9000_in_standalone_nx-os_mode, nexus_9000v, nexus_92160yc-x, nexus_92300yc, nexus_92304qc, nexus_92348gc-fx3, nexus_92348gc-x, nexus_9236c, nexus_9272q, nexus_93108tc-ex, nexus_93108tc-ex-24, nexus_93108tc-fx, nexus_93108tc-fx-24, nexus_93108tc-fx3, nexus_93108tc-fx3h, nexus_93108tc-fx3p, nexus_93120tx, nexus_9316d-gx, nexus_93180lc-ex, nexus_93180yc-ex, nexus_93180yc-ex-24, nexus_93180yc-fx, nexus_93180yc-fx-24, nexus_93180yc-fx3, nexus_93180yc-fx3h, nexus_93180yc-fx3s, nexus_93216tc-fx2, nexus_93240yc-fx2, nexus_9332c, nexus_9332d-gx2b, nexus_9332d-h2r, nexus_9332pq, nexus_93360yc-fx2, nexus_9336c-fx2, nexus_9336c-fx2-e, nexus_9336pq_aci_spine, nexus_93400ld-h1, nexus_9348d-gx2a, nexus_9348gc-fx3, nexus_9348gc-fxp, nexus_93600cd-gx, nexus_9364c, nexus_9364c-gx, nexus_9364c-h1, nexus_9364d-gx2a, nexus_9364e-sg2, nexus_9372px-e, nexus_9372tx-e, nexus_9396tx, nexus_9408, nexus_9508, nexus_9804, nexus_9808, nx-os. Check the affected products table above for specific version ranges.

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.