CVE Catalog

CVE-2017-3826

High
Published: Translated: NVD NIST

Summary

A vulnerability in the SCTP decoder of Cisco NetFlow Generation Appliance (NGA) devices with software before 1.1(1a) could allow an unauthenticated, remote attacker to cause the device to hang or unexpectedly reload, leading to a denial of service (DoS) condition. The issue is due to incomplete validation of SCTP packets being monitored on NGA data ports.

Risk Assessment

An attacker could exploit this vulnerability by sending malformed SCTP packets, potentially causing the device to become unresponsive or reload. This could result in service interruptions for users.

Recommendation

It is recommended to update the software to version 1.1(1a) or later to mitigate this vulnerability. Additionally, monitoring network traffic and restricting access to NGA data ports may help minimize risk.

Related vulnerabilities

Original NVD description (English source)

A vulnerability in the Stream Control Transmission Protocol (SCTP) decoder of the Cisco NetFlow Generation Appliance (NGA) with software before 1.1(1a) could allow an unauthenticated, remote attacker to cause the device to hang or unexpectedly reload, causing a denial of service (DoS) condition. The vulnerability is due to incomplete validation of SCTP packets being monitored on the NGA data ports. An attacker could exploit this vulnerability by sending malformed SCTP packets on a network that is monitored by an NGA data port. SCTP packets addressed to the IP address of the NGA itself will not trigger this vulnerability. An exploit could allow the attacker to cause the appliance to become unresponsive or reload, causing a DoS condition. User interaction could be needed to recover the device using the reboot command from the CLI. The following Cisco NetFlow Generation Appliances are vulnerable: NGA 3140, NGA 3240, NGA 3340. Cisco Bug IDs: CSCvc83320.

Vulnerability data from NVD (NIST) · CISA KEV · EPSS