CVE-2022-20858 represents a critical set of vulnerabilities within Cisco Nexus Dashboard. These flaws allow an unauthenticated, remote attacker to potentially execute arbitrary commands, access sensitive container image files, or launch cross-site request forgery (CSRF) attacks. The vulnerability impacts versions of Cisco Nexus Dashboard prior to a fixed release, requiring immediate attention to mitigate the risk.
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.
This vulnerability is considered high-risk due to its critical CVSS score and the lack of authentication required for exploitation. Public proof-of-concept exploits are likely to emerge, increasing the risk of widespread attacks. Monitor CISA and Cisco security advisories for updates and potential exploitation campaigns. The vulnerability was publicly disclosed on July 21, 2022.
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.logdisclosure
漏洞利用状态
EPSS
1.43% (81% 百分位)
CVSS 向量
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.
将思科 Nexus Dashboard 更新到思科提供的最新版本。请参阅思科安全公告以获取有关受影响版本和修复程序的具体信息。
漏洞分析和关键警报直接发送到您的邮箱。
CVE-2022-20858 is a critical vulnerability in Cisco Nexus Dashboard allowing unauthenticated attackers to execute commands, read/upload container images, or perform CSRF attacks.
If you are running a version of Cisco Nexus Dashboard prior to the fixed version (currently unspecified), you are potentially affected by this vulnerability.
Upgrade to the fixed version of Cisco Nexus Dashboard as soon as it becomes available. Until then, implement network segmentation and WAF rules as temporary mitigations.
While active exploitation is not yet confirmed, the critical severity and lack of authentication suggest a high likelihood of exploitation once public exploits become available.
Refer to the official Cisco Security Advisory for detailed information and updates: https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-nexus-dashboard-command-injection-csrf-september-2022