Vulnerability Description
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.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Cisco | Netflow Generation Appliance Software | 1.0\(2\) |
| Cisco | Netflow Generation Appliance 3140 | - |
| Cisco | Netflow Generation Appliance 3240 | - |
| Cisco | Netflow Generation Appliance 3340 | - |
Related Weaknesses (CWE)
References
- http://www.securityfocus.com/bid/96509
- http://www.securitytracker.com/id/1037938
- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-2Vendor Advisory
- http://www.securityfocus.com/bid/96509
- http://www.securitytracker.com/id/1037938
- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-2Vendor Advisory
FAQ
What is CVE-2017-3826?
CVE-2017-3826 is a vulnerability with a CVSS score of 7.5 (HIGH). 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 ...
How severe is CVE-2017-3826?
CVE-2017-3826 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2017-3826?
Check the references section above for vendor advisories and patch information. Affected products include: Cisco Netflow Generation Appliance Software, Cisco Netflow Generation Appliance 3140, Cisco Netflow Generation Appliance 3240, Cisco Netflow Generation Appliance 3340.