National Vulnerability Database

National Vulnerability Database

National Vulnerability
Database

CVE-2018-12271 Detail

Current Description

** 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.

Source:  MITRE
Description Last Modified:  06/13/2018
View Analysis Description

Impact

CVSS v3.0 Severity and Metrics:

Base Score: 6.4 MEDIUM
Vector: AV:P/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H (V3 legend)
Impact Score: 5.9
Exploitability Score: 0.5


Attack Vector (AV): Physical
Attack Complexity (AC): High
Privileges Required (PR): None
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): High
Integrity (I): High
Availability (A): High

CVSS v2.0 Severity and Metrics:

Base Score: 6.9 MEDIUM
Vector: (AV:L/AC:M/Au:N/C:C/I:C/A:C) (V2 legend)
Impact Subscore: 10.0
Exploitability Subscore: 3.4


Access Vector (AV): Local
Access Complexity (AC): Medium
Authentication (AU): None
Confidentiality (C): Complete
Integrity (I): Complete
Availability (A): Complete
Additional Information:
Allows unauthorized disclosure of information
Allows unauthorized modification
Allows disruption of service

References to Advisories, Solutions, and Tools

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

Technical Details

Vulnerability Type (View All)

Vulnerable software and versions Switch to CPE 2.2

Configuration 1
OR
cpe:2.3:a:dropbox:dropbox:100.2:*:*:*:*:iphone_os:*:*

Denotes Vulnerable Software
Are we missing a CPE here? Please let us know.

Change History

1 change record found - show changes

Quick Info

CVE Dictionary Entry:
CVE-2018-12271
NVD Published Date:
06/13/2018
NVD Last Modified:
08/10/2018