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
When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct.
| Link | Tags |
|---|---|
| https://www.dropbox.com/s/n880ob3gtvfwryu/20180609_013320.mp4?dl=0 | permissions required broken link |
| https://hackerone.com/reports/363544 | issue tracking third party advisory |
| https://gist.github.com/tanprathan/6e8ed195a2e05b7f9d9a342dbdacb349 | issue tracking tool signature third party advisory |