Cisco Nexus Dashboard Unbefugter Zugriff Schwachstellen

The potential impact of CVE-2022-20858 is severe. Successful exploitation of the command execution vulnerability could grant an attacker complete control over the affected Cisco Nexus Dashboard instance. This could lead to data breaches, system compromise, and disruption of network services. The ability to read or upload container images poses a significant risk, potentially exposing sensitive application code and configurations. Furthermore, CSRF attacks could be leveraged to perform unauthorized actions on behalf of legitimate users, further expanding the attack surface. The lack of authentication required for exploitation significantly increases the likelihood of successful attacks.

Organizations heavily reliant on Cisco Nexus Dashboard for network management and automation are particularly at risk. Environments with limited network segmentation or weak access controls are also highly vulnerable. Shared hosting environments where multiple tenants share the same Cisco Nexus Dashboard instance face increased risk of lateral movement if one tenant is compromised.

• cisco / network-device:

Get-CimInstance -ClassName Win32_NetworkAdapterConfiguration | Where-Object {$_.IPEnabled -eq $true} | Select-Object Description, IPAddress, SubnetMask

• cisco / network-device:

show version | grep 'Cisco Nexus Dashboard'

• generic web:

curl -I https://<nexus_dashboard_ip>/api/v1/system/status

• generic web:

 grep -i "Cisco Nexus Dashboard" /var/log/nginx/access.log

1. 2022-07-21Disclosure

   disclosure

1. Reserviert2021-11-02
2. Veröffentlicht2022-07-21
3. Geändert2024-11-01
4. EPSS aktualisiert2026-04-02

Due to the lack of a specified fixed version, immediate mitigation strategies are crucial. Cisco is expected to release a patch soon. Until then, consider implementing network segmentation to isolate the Cisco Nexus Dashboard instance from critical systems. Implement strict access controls and multi-factor authentication where possible. Monitor network traffic for suspicious activity, particularly requests targeting the vulnerable endpoints. Consider using a Web Application Firewall (WAF) to filter malicious requests. Regularly review and update firewall rules to block known attack patterns. Once a patch is released by Cisco, apply it immediately and verify functionality after the upgrade.