CVE-2018-13434: Medium severity line vulnerability

Published Aug 16, 2018

Updated

DISPUTED An issue was discovered in the LINE jp.naver.line application 8.8.0 for iOS. The LAContext class for Biometric (TouchID) validation allows authentication bypass by overriding the LAContext return Boolean value to be "true" because the kSecAccessControlUserPresence protection mechanism is not used. In other words, an attacker could authenticate with an arbitrary fingerprint. NOTE: the vendor indicates that this is not an attack of interest within the context of their threat model, which excludes iOS devices on which a jailbreak has occurred.

Affected Software

1 affected component

linecorp Line Iphone Os=8.8.0

Event History

Aug 16, 2018

CVE Published

via MITRE·08:00 PM

Data Sourced

via MITRE·08:00 PM

Description

Disputed

08:29 PM

Frequently Asked Questions

What is the vulnerability ID of this issue?

The vulnerability ID of this issue is CVE-2018-13434.

What is the severity of CVE-2018-13434?

The severity of CVE-2018-13434 is medium, with a severity value of 6.3.

What is the affected software?

The affected software is LINE jp.naver.line application 8.8.0 for iOS.

How does CVE-2018-13434 allow authentication bypass?

CVE-2018-13434 allows authentication bypass by overriding the LAContext return Boolean value to be "true".

Is there a fix available for CVE-2018-13434?

No information about a fix is available at the moment.