Vulnerability identifier: #VU8159

Vulnerability risk: Low

CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2017-6780

CWE-ID: CWE-400

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Cisco IoT Field Network Director
Web applications / Remote management & hosting panels

Vendor: Cisco Systems, Inc

Description
The vulnerability allows a remote attacker to cause DoS condition on the target system.

The weakness exists in the TCP throttling process due to insufficient rate-limiting protection. A remote attacker can send a high rate of TCP packets to a specific group of open listening ports, trigger memory exhaustion and cause the system to restart.

Successful exploitation of the vulnerability results in denial of service.

Mitigation
Update to version 4.0(0.112).

Vulnerable software versions

Cisco IoT Field Network Director: 3.2.0.122

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External links
http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170906-fnd?vs_f=Cisco%20Security%20Advisory&vs_cat=Security%20Intelligence&vs_type=RSS&vs_p=Cisco%20IoT%20Field%20Network%20Director%20Memory%20Exhaustion%20Denial%20of%20Service%20Vulnerability&vs_k=1

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.