Google Android up to 5.1.1 LMY49C/6.0 MediaTek misc-sd Driver 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$0-$5k0.00

A vulnerability has been found in Google Android up to 5.1.1 LMY49C/6.0 (Smartphone Operating System) and classified as critical. Affected by this vulnerability is an unknown functionality of the component MediaTek misc-sd Driver. The manipulation with an unknown input leads to a access control vulnerability. The CWE definition for the vulnerability is CWE-264. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

The MediaTek misc-sd driver in Android before 5.1.1 LMY49F and 6.0 before 2016-01-01 allows attackers to gain privileges via a crafted application, aka internal bug 25307013.

The weakness was published 01/06/2016 with Tencent as 25307013 as confirmed bug report (Website). It is possible to read the advisory at source.android.com. This vulnerability is known as CVE-2015-6637 since 08/21/2015. The exploitation appears to be difficult. The attack can be launched remotely. The exploitation doesn't need any form of authentication. It demands that the victim is doing some kind of user interaction. The technical details are unknown and an exploit is not publicly available. The pricing 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.The attack technique deployed by this issue is T1068 according to MITRE ATT&CK.

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.

Similar entries are available at 80093, 80094, 80096 and 80097.

Productinfo

Type

Vendor

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB CVSS-B Score: 🔍
VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍

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
💳💳💳💳💳💳
💳💳💳💳💳💳
💳💳💳💳💳💳
VectorComplexityAuthenticationConfidentialityIntegrityAvailability
unlockunlockunlockunlockunlockunlock
unlockunlockunlockunlockunlockunlock
unlockunlockunlockunlockunlockunlock

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: 🔍

0-Dayunlockunlockunlockunlock
Todayunlockunlockunlockunlock

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: 25307013
Organization: Tencent
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2015-6637 (🔍)
SecurityTracker: 1034592
Vulnerability Center: 55610 - Google Android 4.4.4, 5.0, 5.1.1, 6.0 and 6.0.1 Remote Privilege Escalation in MediaTek misc-sd Driver, Critical
SecurityFocus: 79842 - Google Android 'misc-sd' driver CVE-2015-6637 Remote Privilege Escalation Vulnerability

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

Entryinfo

Created: 01/07/2016 09:43
Updated: 07/02/2022 14:07
Changes: 01/07/2016 09:43 (64), 06/20/2018 08:50 (11), 07/02/2022 14:07 (3)
Complete: 🔍

Discussion

No comments yet. Languages: en.

Please log in to comment.

◂ PreviousOverviewNext ▸

Do you know our Splunk app?

Download it now for free!