CVE-2024-20320

A vulnerability in the SSH client feature of Cisco IOS XR Software for Cisco 8000 Series Routers and Cisco Network Convergence System (NCS) 540 Series and 5700 Series Routers could allow an authenticated, local attacker to elevate privileges on an affected device. This vulnerability is due to insufficient validation of arguments that are included with the SSH client CLI command. An attacker with low-privileged access to an affected device could exploit this vulnerability by issuing a crafted SSH client command to the CLI. A successful exploit could allow the attacker to elevate privileges to root on the affected device. It has a CVSS v3.1 base score of 7.8 (HIGH).

CVE-2024-20320 has a CVSS v3.1 score of 7.8 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching.

CVE-2024-20320 affects products from cisco, specifically: 8011-4g24y4h-i, 8101-32fh, 8101-32fh-o, 8101-32h-o, 8102-28fh-dpu-o, 8102-64h, 8102-64h-o, 8111-32eh-o, 8122-64eh-o, 8122-64ehf-o, 8201, 8201-24h8fh, 8201-32fh, 8201-32fh-o, 8202, 8202-32fh-m, 8212-48fh-m, 8404, 8501-sys-mt, 8608, 8700, 8711-32fh-m, 8712-mod-m, 8804, 8808, 8812, 8818, ios_xr, ios_xrd_control_plane, ios_xrd_vrouter, ncs_540-12z20g-sys-a, ncs_540-12z20g-sys-d, ncs_540-24q2c2dd-sys, ncs_540-24q8l2dd-sys, ncs_540-24z8q2c-sys, ncs_540-28z4c-sys-a, ncs_540-28z4c-sys-d, ncs_540-6z14s-sys-d, ncs_540-6z18g-sys-a, ncs_540-6z18g-sys-d, ncs_540-acc-sys, ncs_540-fh-agg, ncs_540-fh-csr-sys, ncs_540x-12z16g-sys-a, ncs_540x-12z16g-sys-d, ncs_540x-16z4g8q2c-a, ncs_540x-16z4g8q2c-d, ncs_540x-16z8q2c-d, ncs_540x-4z14g2q-a, ncs_540x-4z14g2q-d, ncs_540x-6z18g-sys-a, ncs_540x-6z18g-sys-d, ncs_540x-8z16g-sys-a, ncs_540x-8z16g-sys-d, ncs_540x-acc-sys, ncs_57b1-5dse-sys, ncs_57b1-6d24-sys, ncs_57c1-48q6-sys. 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.