CVE-2018-11518: Improper Input Validation

A vulnerability allows a phreaking attack on HCL legacy IVR systems that do not use VoIP. These IVR systems rely on various frequencies of audio signals; based on the frequency, certain commands and functions are processed. Since these frequencies are accepted within a phone call, an attacker can...

PT-2018-10634

Name of the Vulnerable Software and Affected Versions HCL legacy IVR systems affected versions not specified Description A phreaking attack can be performed on HCL legacy IVR systems that do not use VoIP, allowing an attacker to record and replay specific audio frequencies to activate services...