CVE-2018-13434

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

CVSS v3.0

6.3 MEDIUMCVSS:3.0/AV:P/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

CVSS v2.0

4.4 MEDIUMAV:L/AC:M/Au:N/C:P/I:P/A:P

EPSS

0.36% chance of exploitation in the next 30 days, 29th percentile

Published

2018-08-16

Updated

2024-08-05

Proof-of-concept exploits (1)

• https://gist.github.com/tanprathan/f5133651e438b2ad1b39172d52b56115

References

• CVE Record
• NVD entry

Related

• CVE-2018-13418
• CVE-2018-13435
• CVE-2018-13417
• CVE-2018-13439
• CVE-2018-13416
• CVE-2018-13440