CVE-2018-12271

** DISPUTED ** 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.

CVSS v3.0 6.4 MEDIUM
CVSS v2.0 6.9 MEDIUM

6.4^/10

CVSS v3.0 : MEDIUM

Vector : AV:P/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Exploitability : 0.5 / Impact : 5.9

Attack Vector PHYSICAL

Attack Complexity HIGH

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

6.9^/10

CVSS v2.0 : MEDIUM

Vector : AV:L/AC:M/Au:N/C:C/I:C/A:C

Exploitability : 3.4 / Impact : 10.0

Access Vector LOCAL

Access Complexity MEDIUM

Authentication NONE

Confidentiality Impact COMPLETE

Integrity Impact COMPLETE

Availability Impact COMPLETE

References

Link	Resource
https://www.dropbox.com/s/n880ob3gtvfwryu/20180609_013320.mp4?dl=0	Broken Link Permissions Required
https://hackerone.com/reports/363544	Issue Tracking Third Party Advisory
https://gist.github.com/tanprathan/6e8ed195a2e05b7f9d9a342dbdacb349	Issue Tracking Tool Signature Third Party Advisory

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Configurations

Configuration 1 (hide)

cpe:2.3:a:dropbox:dropbox:100.2:*:*:*:*:iphone_os:*:*

Information

Published : 2018-06-13 16:29

Updated : 2018-08-10 09:57

NVD link : CVE-2018-12271

Mitre link : CVE-2018-12271

JSON object : View

CWE

CWE-287

Improper Authentication

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Products Affected

dropbox

dropbox

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