An issue was discovered in the com.getdropbox.Dropbox app 100.2 for iOS.

Published 8 y ago 2018-06-13 · modified 4 mo ago 2026-06-17 · JSON

CVSS

6.4

v3.0 · NVD

CISA KEV

not known exploited

EPSS

0.4%

percentile 37%

Public exploits

none known

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

CISA SSVC assessment

Exploitation: none
Automatable: no
Technical impact: partial
Assessed: 2 y ago 2024-06-18

Exploit prediction (EPSS)

0.42% probability of exploitation in the next 30 days, higher than 37% of all scored CVEs.

CVSS scores

Assigned by	Version	Score	Vector
NVD	3.0	6.4	`CVSS:3.0/AV:P/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H`
NVD	2.0	6.9	`AV:L/AC:M/Au:N/C:C/I:C/A:C`

Classification

Weakness

CWE-287 Improper Authentication

References

dropbox.com /s/n880ob3gtvfwryu/20180609_013320.mp4?dl=0 · x_refsource_MISC, x_transferred
hackerone.com /reports/363544 · x_refsource_MISC, x_transferred
gist.github.com /tanprathan/6e8ed195a2e05b7f9d9a342dbdacb349 · x_refsource_MISC, x_transferred

Sources

CVE List: CVE-2018-12271
NVD: CVE-2018-12271

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