Vulnerability identifier: #VU10694
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:
CWE-ID:
CWE-20
Exploitation vector: Network
Exploit availability: No
Vulnerable software:
Cisco Unified Customer Voice Portal
Server applications /
Other server solutions
Vendor: Cisco Systems, Inc
Description
The vulnerability allows a remote attacker to cause DoS condition on the target system.
The weakness exists in the Interactive Voice Response (IVR) management connection interface due to improper handling of a TCP connection request when the IVR connection is already established. A remote attacker can initiate a specially crafted connection to the IP address, disconnect the IVR to CVP connection and prevent the CVP from accepting new, incoming calls while the IVR automatically attempts to re-establish the connection to the CVP.
Mitigation
Install update from vendor's website.
Vulnerable software versions
Cisco Unified Customer Voice Portal: 11.5.1 - 11.6
External links
http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180221-cvp
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.