VDB-92338 · CVE-2016-3911 · BID 93303

Google Android prior 7.0 Zygote access control

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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7.5$5k-$25k0.00

Summaryinfo

A vulnerability categorized as problematic has been discovered in Google Android. This issue affects some unknown processing of the component Zygote. Executing a manipulation can lead to access control. This vulnerability appears as CVE-2016-3911. The attack requires local access. There is no available exploit. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability was found in Google Android (Smartphone Operating System). It has been declared as critical. This vulnerability affects an unknown functionality of the component Zygote. 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. CVE summarizes:

core/java/android/os/Process.java in Zygote in Android 4.x before 4.4.4, 5.0.x before 5.0.2, 5.1.x before 5.1.1, 6.x before 2016-10-01, and 7.0 before 2016-10-01 allows attackers to gain privileges via a crafted application, aka internal bug 30143607.

The weakness was presented 10/03/2016 as Android Security Bulletin - October 2016 as confirmed security bulletin (Website). The advisory is available at source.android.com. This vulnerability was named CVE-2016-3911 since 03/30/2016. The exploitation appears to be easy. Local access is required to approach this attack. The successful exploitation needs a single authentication. Successful exploitation requires user interaction by the victim. The technical details are unknown and an exploit is not available. The structure of the vulnerability defines a possible price range of USD $5k-$25k at the moment (estimation calculated on 05/01/2019). It is expected to see the exploit prices for this product increasing in the near future.This vulnerability is assigned to T1068 by the MITRE ATT&CK project.

The vulnerability was handled as a non-public zero-day exploit for at least 83 days. During that time the estimated underground price was around $25k-$100k.

Upgrading to version 4.4.4, 5.0.2, 5.1.1, 6.0, 6.0.1 or 7.0 eliminates this vulnerability. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The vulnerability is also documented in the vulnerability database at SecurityFocus (BID 93303†). See VDB-83735, VDB-90675, VDB-90618 and VDB-90676 for similar entries. Once again VulDB remains the best source for vulnerability data.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

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

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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: Partially
Local: Yes
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: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Upgrade: Android 4.4.4/5.0.2/5.1.1/6.0/6.0.1/7.0

Timelineinfo

03/30/2016 🔍
07/12/2016 +104 days 🔍
10/03/2016 +83 days 🔍
10/03/2016 +0 days 🔍
10/03/2016 +0 days 🔍
10/05/2016 +2 days 🔍
10/10/2016 +5 days 🔍
05/01/2019 +933 days 🔍

Sourcesinfo

Vendor: google.com

Advisory: Android Security Bulletin - October 2016
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2016-3911 (🔍)
GCVE (CVE): GCVE-0-2016-3911
GCVE (VulDB): GCVE-100-92338
SecurityFocus: 93303 - Google Android CVE-2016-3911 Privilege Escalation Vulnerability

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

Entryinfo

Created: 10/05/2016 10:44
Updated: 05/01/2019 13:03
Changes: 10/05/2016 10:44 (59), 05/01/2019 13:03 (13)
Complete: 🔍
Cache ID: 216:0FD:103

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