Cisco SD-WAN Solution Command Injection Vulnerability

Vulnerability

The vulnerability resides in the vManage web-based UI (Web UI) of the Cisco SD-WAN Solution. Due to insufficient input validation, an authenticated remote attacker can inject arbitrary commands that are executed with root privileges. The affected component is the vManage Web UI, and the vulnerability is present in versions prior to the fixed releases provided by Cisco [1].

Exploitation

An attacker must have valid credentials to authenticate to the vManage device. Once authenticated, the attacker submits crafted input to the vManage Web UI, which is not properly sanitized. This allows the attacker to inject arbitrary operating system commands. No additional user interaction is required beyond the initial authentication [1].

Impact

Successful exploitation grants the attacker the ability to execute arbitrary commands with root privileges on the underlying system. This results in a complete compromise of the vManage device, including full loss of confidentiality, integrity, and availability. The attacker gains root-level access, enabling further malicious activities within the SD-WAN environment [1].

Mitigation

Cisco has released free software updates to address this vulnerability. Customers are advised to upgrade to the fixed version as specified in the Cisco Security Advisory [1]. No workarounds are available. Users should consult the advisory for detailed upgrade instructions and ensure they have sufficient memory and compatible hardware before upgrading [1].