#VU10694 Improper input validation in Cisco Unified Customer Voice Portal - CVE-2018-0139
Published: February 22, 2018
Vulnerability identifier: #VU10694
Vulnerability risk: Low
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2018-0139
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerable software:
Cisco Unified Customer Voice Portal
Cisco Unified Customer Voice Portal
Software vendor:
Cisco Systems, Inc
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.
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.
Remediation
Install update from vendor's website.