Google Android 6.0 Trusted Execution Environment access control

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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4.7$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as critical, has been found in Google Android 6.0. Impacted is an unknown function of the component Trusted Execution Environment. The manipulation leads to access control. This vulnerability is traded as CVE-2016-10398. It is possible to launch the attack on the physical device. There is no exploit available. It is recommended to apply a patch to fix this issue.

Detailsinfo

A vulnerability was found in Google Android 6.0 (Smartphone Operating System) and classified as problematic. This issue affects an unknown functionality of the component Trusted Execution Environment. The manipulation with an unknown input leads to a access control vulnerability. Using CWE to declare the problem leads to CWE-264. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

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.

The bug was discovered 02/07/2016. The weakness was shared 07/17/2017 (Website). It is possible to read the advisory at homepages.staff.os3.nl. The identification of this vulnerability is CVE-2016-10398 since 07/14/2017. The exploitation is known to be easy. Attacking locally is a requirement. No form of authentication is needed for a successful exploitation. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1068 according to MITRE ATT&CK.

The vulnerability was handled as a non-public zero-day exploit for at least 526 days. During that time the estimated underground price was around $0-$5k.

Applying a patch is able to eliminate this problem.

Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.9
VulDB Meta Temp Score: 4.9

VulDB Base Score: 3.7
VulDB Temp Score: 3.6
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 6.2
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Access control
CWE: CWE-264
CAPEC: 🔍
ATT&CK: 🔍

Physical: Yes
Local: Yes
Remote: No

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Patch
Status: 🔍

0-Day Time: 🔍

Timelineinfo

02/07/2016 🔍
07/14/2017 +523 days 🔍
07/17/2017 +3 days 🔍
07/17/2017 +0 days 🔍
07/17/2017 +0 days 🔍
10/25/2019 +830 days 🔍

Sourcesinfo

Vendor: google.com

Advisory: homepages.staff.os3.nl
Status: Not defined

CVE: CVE-2016-10398 (🔍)
GCVE (CVE): GCVE-0-2016-10398
GCVE (VulDB): GCVE-100-103559
scip Labs: https://www.scip.ch/en/?labs.20150917

Entryinfo

Created: 07/17/2017 20:11
Updated: 10/25/2019 21:29
Changes: 07/17/2017 20:11 (59), 10/25/2019 21:29 (1)
Complete: 🔍
Cache ID: 216::103

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