CAPEC-626 Smudge Attack

CAPEC ID: 626

CAPEC-626 Metadata

Likelihood of Attack

Low

Typical Severity

High

Overview

Summary

Attacks that reveal the password/passcode pattern on a touchscreen device by detecting oil smudges left behind by the user’s fingers.

Prerequisites

The attacker must have physical access to the device.

Potential Solutions / Mitigations

Strong physical security of the device.

Related CAPECs

CAPEC ID Description
CAPEC-395 An attacker exploits security assumptions to bypass electronic locks or other forms of access controls. Most attacks against electronic access controls follow similar methods but utilize different tools. Some electronic locks utilize magnetic strip cards, others employ RFID tags embedded within a card or badge, or may involve more sophisticated protections such as voice-print, thumb-print, or retinal biometrics. Magnetic Strip and RFID technologies are the most widespread because they are cost effective to deploy and more easily integrated with other electronic security measures. These technologies share common weaknesses that an attacker can exploit to gain access to a facility protected by the mechanisms via copying legitimate cards or badges, or generating new cards using reverse-engineered algorithms.

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