Overview
On the iOS platform, the ThreatMetrix SDK versions prior to 3.2 fail to validate SSL certificates provided by HTTPS connections, which may allow an attacker to perform a man-in-the-middle (MITM) attack.
Description
ThreatMetrix is a security library for mobile applications, which aims to provide fraud prevention and device identity capabilities. The ThreatMetrix SDK versions prior to 3.2 do not validate SSL certificates on the iOS platform. An affected application will communicate with https://h-sdk.online-metrix.net, regardless of whether the connection is secure or not. |
Impact
An attacker on the same network as or upstream from the iOS device may be able to view or modify ThreatMetrix network traffic that should have been protected by HTTPS. |
Solution
Apply an update This issue has been addressed in ThreatMetrix SDK versions 3.2 and later. Any iOS application that uses a vulnerable version of the ThreatMetrix SDK will need to be regenerated with an updated version of the library. |
Avoid untrusted networks |
Vendor Information
CVSS Metrics
| Group | Score | Vector |
|---|---|---|
| Base | 4.8 | AV:A/AC:L/Au:N/C:P/I:P/A:N |
| Temporal | 4 | E:F/RL:OF/RC:C |
| Environmental | 3.9 | CDP:ND/TD:ND/CR:ND/IR:ND/AR:ND |
References
Acknowledgements
This vulnerability was reported by Will Dormann of the CERT/CC.
This document was written by Will Dormann.
Other Information
| CVE IDs: | CVE-2017-3182 |
| Date Public: | 2017-01-10 |
| Date First Published: | 2017-01-10 |
| Date Last Updated: | 2017-01-11 14:28 UTC |
| Document Revision: | 12 |