Medium severity · published Jun 13, 2018
CVE-2018-12271
An issue was discovered in the com.getdropbox.Dropbox app 100.2 for iOS
6.4
CVSS
0.4%
EPSS
No
On KEV
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
CVSS vector
CVSS:3.0/AV:P/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Physical
Complexity
High
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 37% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
DR
Dropbox · Dropbox
100.2 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2018-12271
CVE.org
https://www.cve.org/CVERecord?id=CVE-2018-12271
Issue Tracking
https://gist.github.com/tanprathan/6e8ed195a2e05b7f9d9a342dbdacb349
Issue Tracking
https://hackerone.com/reports/363544
Broken Link
https://www.dropbox.com/s/n880ob3gtvfwryu/20180609_013320.mp4?dl=0
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