CVE-2017-12337
CriticalSummary
A vulnerability in the upgrade mechanism of Cisco collaboration products based on the Cisco Voice Operating System software platform could allow an unauthenticated, remote attacker to gain unauthorized, elevated access to an affected device. The vulnerability occurs during a refresh upgrade or Prime Collaboration Deployment migration.
Risk Assessment
An attacker could gain root access to the device, posing a significant security threat to the organization. If exploited, the attacker could take control of the device.
Recommendation
It is recommended to perform a standard upgrade of the device to the latest version to remediate this vulnerability. Avoid installing Engineering Special Releases as COP files, as they do not address this issue.
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Original NVD description (English source)
A vulnerability in the upgrade mechanism of Cisco collaboration products based on the Cisco Voice Operating System software platform could allow an unauthenticated, remote attacker to gain unauthorized, elevated access to an affected device. The vulnerability occurs when a refresh upgrade (RU) or Prime Collaboration Deployment (PCD) migration is performed on an affected device. When a refresh upgrade or PCD migration is completed successfully, an engineering flag remains enabled and could allow root access to the device with a known password. If the vulnerable device is subsequently upgraded using the standard upgrade method to an Engineering Special Release, service update, or a new major release of the affected product, this vulnerability is remediated by that action. Note: Engineering Special Releases that are installed as COP files, as opposed to the standard upgrade method, do not remediate this vulnerability. An attacker who can access an affected device over SFTP while it is in