Cisco Nexus 3000 and 9000 Series Switches MPLS OAM Remote Code Execution Vulnerability
Crafted MPLS echo requests can yield unauthenticated root code execution on Cisco Nexus 3000 and 9000 switches.
Cisco disclosed a vulnerability in the MPLS OAM feature of NX-OS Software on Nexus 3000 and 9000 Series switches. Improper validation of MPLS echo-request packets allows an unauthenticated remote attacker to execute arbitrary code as root or cause a denial of service. Exploitation requires sending a crafted MPLS echo-request to an IP address on the affected device. The excerpt does not state that exploitation has been observed.
- Unauthenticated remote root code execution or denial of service
- Triggered by crafted MPLS echo-request packets
- Affects Nexus 3000 and 9000 switches running NX-OS
- Advisory does not report confirmed exploitation
A vulnerability in the MPLS Operation, Administration, and Maintenance (OAM) feature of Cisco NX-OS Software for Cisco Nexus 3000 Series Switches and Cisco Nexus 9000 Series Switches could allow an unauthenticated, remote attacker to execute arbitrary code with root privileges or cause a denial of service (DoS) condition on an affected device. This vulnerability is due to improper validation when an affected device is processing an MPLS echo-request packet. An attacker could exploit this vulnerability by sending a crafted MPLS echo-request to an IP address on an affected device. A successful exploit could allow the attacker to execute arbitrary code with root privileges and could cause…
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