Various Ubiquiti Networks products suffer from having hardcoded keys and also having remote management interfaces enabled that can be leveraged by these credentials.

Cisco Security Advisory – A vulnerability in the email message filtering feature of Cisco AsyncOS for Cisco Email Security Appliance (ESA) could allow an unauthenticated, remote attacker to cause an ESA device to become unavailable due to a denial of service (DoS) condition. The vulnerability is due to improper input validation when an email attachment contains corrupted fields and is filtered by the ESA. An attacker could exploit this vulnerability by sending a crafted email with an attachment to the ESA. A successful exploit could allow the attacker to cause a DoS condition. While the attachment is being filtered, memory is consumed at at high rate until the filtering process restarts. When the process restarts, it will resume processing the same malformed attachment and the DoS condition will continue. Cisco has released software updates that address this vulnerability. There are no workarounds that mitigate this vulnerability.

Cisco Security Advisory – A vulnerability in the anti-spam scanner of Cisco AsyncOS for Cisco Email Security Appliance (ESA) could allow an unauthenticated, remote attacker to bypass the anti-spam functionality of the ESA. The vulnerability is due to improper error handling of a malformed packet in the anti-spam scanner. An attacker could exploit this vulnerability by sending a crafted DNS Sender Policy Framework (SPF) text record. A successful exploit could allow the attacker to bypass the anti-spam scanner and generate a malformed packet alert. Cisco has released software updates that address this vulnerability. There are no workarounds that mitigate this vulnerability.

Cisco Security Advisory – A vulnerability in the Cisco Mobility Services Engine (MSE) could allow an unauthenticated, remote attacker to log in to the MSE with the default oracle account. This account does not have full administrator privileges. The vulnerability is due to a user account that has a default and static password. This account is created at installation and cannot be changed or deleted without impacting the functionality of the system. An attacker could exploit this vulnerability by remotely connecting to the affected system via SSH using this account. A successful exploit could allow the attacker to log in to the MSE using the default oracle account. Cisco has released software updates that address this vulnerability. A workaround that mitigates this vulnerability is available.