Denial of service in Cisco TelePresence Video Communication Server

1) Resource exhaustion

EUVDB-ID: #VU13405

Risk: Low

CVSSv3.1: 4.6 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:U/RL:O/RC:C]

CVE-ID: CVE-2018-0358

CWE-ID: CWE-400 - Resource exhaustion

Exploit availability: No

Description

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

The vulnerability exists in the file descriptor handling of Cisco TelePresence Video Communication Server due to exhaustion of file descriptors while processing a high volume of traffic. A remote attacker can establish a high number of concurrent TCP connections, trigger resource exhaustion and cause a restart in a specific process, resulting in a temporary interruption of service.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Cisco TelePresence Video Communication Server: All versions

External links

http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180620-vcse-dos

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.