VULNERABILITY INTELLIGENCE
CVE-2018-12271
CVSS score6.4 MEDIUM
EPSS probability0.42%
CISA KEVNot currently listed
Published2018-06-13
Last modified2026-06-17
CVSS vectorCVSS:3.0/AV:P/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Description
An issue was discovered in the com.getdropbox.Dropbox app 100.2 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
Weakness classification
- CWE-287: Improper Authentication
Primary references
- cve@mitre.org — Issue Tracking, Third Party Advisory, Tool Signature
- cve@mitre.org — Issue Tracking, Third Party Advisory
- cve@mitre.org — Broken Link, Permissions Required
- af854a3a-2127-422b-91ae-364da2661108 — Issue Tracking, Third Party Advisory, Tool Signature
- af854a3a-2127-422b-91ae-364da2661108 — Issue Tracking, Third Party Advisory
- af854a3a-2127-422b-91ae-364da2661108 — Broken Link, Permissions Required