Cisco IOS XE Software Web UI Command Injection Vulnerabilities

Vulnerability

Multiple command injection vulnerabilities exist in the web-based user interface (Web UI) of Cisco IOS XE Software. These flaws allow an authenticated remote attacker to inject arbitrary commands. Affected versions are those running Cisco IOS XE Software with the Web UI feature enabled. For full details, refer to the Cisco Security Advisory [1].

Exploitation

An attacker must have valid credentials with at least read-only access to the device's Web UI. The attacker can craft malicious input to the Web UI, which is not properly sanitized, leading to command injection. No user interaction beyond the initial authentication is required.

Impact

Successful exploitation allows the attacker to execute arbitrary commands with elevated privileges, potentially gaining full control of the device. This can lead to information disclosure, modification of device configuration, or denial of service.

Mitigation

Cisco has released free software updates to address these vulnerabilities. Customers should upgrade to the fixed versions as indicated in the Cisco Security Advisory [1]. No workarounds are available. For customers without service contracts, contact Cisco TAC to obtain the upgrade.