CVE-2016-10398 — MEDIUM (6.2)

Vulnerability Description

Android 6.0 has an authentication bypass for attackers with root and physical access. Cryptographic authentication tokens (AuthTokens) used by the Trusted Execution Environment (TEE) are protected by a weak challenge. This allows adversaries to replay previously captured responses and use the TEE without authenticating. All apps using authentication-gated cryptography are vulnerable to this attack, which was confirmed on the LG Nexus 5X.

CVSS Score

6.2

MEDIUM

CVSS:3.0/AV:P/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

Attack Vector

PHYSICAL

Attack Complexity

LOW

Privileges Required

HIGH

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

HIGH

Integrity

HIGH

Availability

HIGH

Affected Products

Vendor	Product	Versions
Google	Android	6.0

Related Weaknesses (CWE)

CWE-264

References

https://homepages.staff.os3.nl/~delaat/rp/2015-2016/p30/report.pdfTechnical DescriptionThird Party Advisory
https://homepages.staff.os3.nl/~delaat/rp/2015-2016/p30/report.pdfTechnical DescriptionThird Party Advisory

FAQ

What is CVE-2016-10398?

CVE-2016-10398 is a vulnerability with a CVSS score of 6.2 (MEDIUM). Android 6.0 has an authentication bypass for attackers with root and physical access. Cryptographic authentication tokens (AuthTokens) used by the Trusted Execution Environment (TEE) are protected by ...

How severe is CVE-2016-10398?

CVE-2016-10398 has been rated MEDIUM with a CVSS base score of 6.2/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2016-10398?

Check the references section above for vendor advisories and patch information. Affected products include: Google Android.