CVE-2018-11518

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 record these frequencies and use them for service activations. This is a request-forgery issue when the required series of DTMF signals for a service activation is predictable (e.g., the IVR system does not speak a nonce to the caller). In this case, the IVR system accepts an activation request from a less-secure channel (any loudspeaker in the caller's physical environment) without verifying that the request was intended (it matches a nonce sent over a more-secure channel to the caller's earpiece).
Configurations

Configuration 1 (hide)

AND
cpe:2.3:o:hcltech:legacy_ivr_firmware:-:*:*:*:*:*:*:*
cpe:2.3:h:hcltech:legacy_ivr:-:*:*:*:*:*:*:*

History

No history.

Information

Published : 2018-05-30 20:29

Updated : 2024-02-28 16:25


NVD link : CVE-2018-11518

Mitre link : CVE-2018-11518

CVE.ORG link : CVE-2018-11518


JSON object : View

Products Affected

hcltech

  • legacy_ivr
  • legacy_ivr_firmware
CWE
CWE-20

Improper Input Validation