Cisco Identity Services Engine CVE-2019-15255 Authorization Bypass Vulnerability

Description

Cisco Identity Services Engine is prone to an authorization-bypass vulnerability. An attacker can exploit this issue to bypass certain security restrictions and perform unauthorized actions; this may aid in launching further attacks. This issue being tracked by Cisco Bug ID CSCvq67348.

Technologies Affected

• Cisco Identity Services Engine 2.2.0

Recommendations

Block external access at the network boundary, unless external parties require service.
If global access isn’t needed, filter access to the affected device at the network boundary. Restricting access to only trusted computers and networks might greatly reduce the likelihood of exploitation.

Deploy network intrusion detection systems to monitor network traffic for malicious activity.
Deploy NIDS to monitor network traffic for signs of anomalous or suspicious activity. This includes but is not limited to requests that include explained incoming and outgoing traffic. This may indicate exploit attempts to activity that results from successful exploits.

Updates are available. Please see the references or vendor advisory for more information.