Vulnerability 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 Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Dropbox | Dropbox | 100.2 |
Related Weaknesses (CWE)
References
- https://gist.github.com/tanprathan/6e8ed195a2e05b7f9d9a342dbdacb349Issue TrackingThird Party AdvisoryTool Signature
- https://hackerone.com/reports/363544Issue TrackingThird Party Advisory
- https://www.dropbox.com/s/n880ob3gtvfwryu/20180609_013320.mp4?dl=0Broken LinkPermissions Required
- https://gist.github.com/tanprathan/6e8ed195a2e05b7f9d9a342dbdacb349Issue TrackingThird Party AdvisoryTool Signature
- https://hackerone.com/reports/363544Issue TrackingThird Party Advisory
- https://www.dropbox.com/s/n880ob3gtvfwryu/20180609_013320.mp4?dl=0Broken LinkPermissions Required
FAQ
What is CVE-2018-12271?
CVE-2018-12271 is a vulnerability with a CVSS score of 6.4 (MEDIUM). 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 ...
How severe is CVE-2018-12271?
CVE-2018-12271 has been rated MEDIUM with a CVSS base score of 6.4/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2018-12271?
Check the references section above for vendor advisories and patch information. Affected products include: Dropbox Dropbox.