Google Android up to 5.1.1 LMY49C/6.0 Widevine QSEE TrustZone Application access control

CVSS Meta Temp Score
CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.
Current Exploit Price (≈)
Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.
CTI Interest Score
Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
7.6$5k-$25k0.00

A vulnerability was found in Google Android up to 5.1.1 LMY49C/6.0 (Smartphone Operating System) and classified as critical. This issue affects an unknown code of the component Widevine QSEE TrustZone Application. 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 weakness was published 01/06/2016 by Marco Grassi with KeenTeam as 24441554 as confirmed bug report (Website). The advisory is shared at source.android.com. The identification of this vulnerability is CVE-2015-6647 since 08/21/2015. The exploitation is known to be difficult. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. It demands that the victim is doing some kind of user interaction. Neither technical details nor an exploit are publicly available. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 07/02/2022). It is expected to see the exploit prices for this product increasing in the near future.MITRE ATT&CK project uses the attack technique T1068 for this issue.

Upgrading to version 5.1.1 LMY49F or 6.0 2016-01-01 eliminates this vulnerability. A possible mitigation has been published even before and not after the disclosure of the vulnerability.

The vulnerability is also documented in the vulnerability database at Vulnerability Center (SBV-55615). Similar entries are available at 80093, 80094, 80095 and 80096.

Productinfo

Type

Vendor

Name

License

  • free

CPE 2.3info

CPE 2.2info

CVSSv3info

VulDB Meta Base Score: 7.8
VulDB Meta Temp Score: 7.6

VulDB Base Score: 7.8
VulDB Temp Score: 7.5
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.8
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
ATT&CK: T1068

Local: No
Remote: Yes

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: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Android 5.1.1 LMY49F/6.0 2016-01-01

Timelineinfo

08/21/2015 🔍
01/01/2016 +133 days 🔍
01/04/2016 +3 days 🔍
01/04/2016 +0 days 🔍
01/06/2016 +2 days 🔍
01/06/2016 +0 days 🔍
01/07/2016 +1 days 🔍
01/11/2016 +4 days 🔍
07/02/2022 +2364 days 🔍

Sourcesinfo

Vendor: google.com

Advisory: 24441554
Researcher: Marco Grassi
Organization: KeenTeam
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2015-6647 (🔍)
SecurityTracker: 1034592
Vulnerability Center: 55615 - Google Android 5.0, 5.1.1, 6.0 and 6.0.1 Remote Privilege Escalation in Widevine QSEE TrustZone - CVE-2015-6647, Critical
SecurityFocus: 79846 - Google Android Widevine QSEE TrustZone Multiple Privilege Escalation Vulnerabilities

scip Labs: https://www.scip.ch/en/?labs.20150917
See also: 🔍

Entryinfo

Created: 01/07/2016 09:45 AM
Updated: 07/02/2022 02:33 PM
Changes: 01/07/2016 09:45 AM (64), 06/20/2018 08:52 AM (12), 07/02/2022 02:33 PM (3)
Complete: 🔍

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