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
References (3)
Core 3
Core References
Broken Link, Permissions Required x_refsource_misc
https://www.dropbox.com/s/n880ob3gtvfwryu/20180609_013320.mp4?dl=0
Issue Tracking, Third Party Advisory x_refsource_misc
https://hackerone.com/reports/363544
Issue Tracking, Third Party Advisory, Tool Signature x_refsource_misc
https://gist.github.com/tanprathan/6e8ed195a2e05b7f9d9a342dbdacb349
Scores
CVSS v3
6.4
EPSS
0.0043
EPSS Percentile
34.5%
Attack Vector
PHYSICAL
CVSS:3.0/AV:P/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
no
Technical Impact
partial
Details
CWE
CWE-287
Status
published
Products (1)
dropbox/dropbox
100.2
Published
Jun 13, 2018
Tracked Since
Feb 18, 2026