Cisco Identity Services Engine RADIUS Denial of Service Vulnerability
Cisco patched a RADIUS flaw in Identity Services Engine letting unauthenticated remote attackers trigger denial of service on ISE nodes.
A vulnerability in the RADIUS feature of Cisco Identity Services Engine allows an unauthenticated remote attacker to cause a denial of service by sending crafted RADIUS requests directly to an affected device. The flaw stems from improper handling of certain RADIUS requests and can render ISE nodes unavailable. In single-node deployments, endpoints that have not yet authenticated would be unable to access the network until the node recovers. Cisco has released software updates addressing the issue.
- Unauthenticated remote DoS via crafted RADIUS requests against ISE nodes
- Single-node deployments risk network access lockout for unauthenticated endpoints
- Software updates released by Cisco
- Vendors
- Cisco
- Products
- Cisco Identity Services Engine
From the original article
A vulnerability in the RADIUS feature of Cisco Identity Services Engine (ISE) could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. This vulnerability is due to improper handling of certain RADIUS requests. An attacker could exploit this vulnerability by sending a crafted RADIUS request directly to an affected device.
sec.cloudapps.cisco.com
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