VDB-95073 · CVE-2016-4288 · BID 92426

BlueStacks App Player Registry permission

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.
8.1	$0-$5k	0.00

Summaryinfo

A vulnerability classified as critical has been found in BlueStacks App Player. Affected by this vulnerability is an unknown functionality of the component Registry Handler. Performing a manipulation results in permission. This vulnerability was named CVE-2016-4288. The attack needs to be approached locally. There is no available exploit.

Detailsinfo

A vulnerability was found in BlueStacks App Player (version now known). It has been classified as critical. This affects some unknown processing of the component Registry Handler. The manipulation with an unknown input leads to a permission vulnerability. CWE is classifying the issue as CWE-275. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

A local privilege escalation vulnerability exists in BlueStacks App Player. The BlueStacks App Player installer creates a registry key with weak permissions that allows users to execute arbitrary programs with SYSTEM privileges.

The bug was discovered 08/04/2016. The weakness was presented 01/06/2017 by Cisco with Cisco Talos (Website). The advisory is shared at securityfocus.com. This vulnerability is uniquely identified as CVE-2016-4288 since 04/27/2016. An attack has to be approached locally. Required for exploitation is a authentication. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1222 for this issue.

The vulnerability was handled as a non-public zero-day exploit for at least 155 days. During that time the estimated underground price was around $0-$5k.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the vulnerability database at SecurityFocus (BID 92426†). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Vendor

BlueStacks

Name

App Player

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.1
VulDB Meta Temp Score: 8.1

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

NVD Base Score: 8.4
NVD Vector: 🔍

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock

VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Permission
CWE: CWE-275 / CWE-266
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: No

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

OpenVAS ID: 103245
OpenVAS Name: BlueStacks App Player Privilege Escalation Vulnerability
OpenVAS File: 🔍
OpenVAS Family: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

04/27/2016 🔍
08/04/2016 +99 days 🔍
08/04/2016 +0 days 🔍
01/06/2017 +155 days 🔍
01/06/2017 +0 days 🔍
01/07/2017 +1 days 🔍
04/20/2025 +3025 days 🔍

Sourcesinfo

Advisory: securityfocus.com⛔
Researcher: Cisco
Organization: Cisco Talos
Status: Not defined

CVE: CVE-2016-4288 (🔍)
GCVE (CVE): GCVE-0-2016-4288
GCVE (VulDB): GCVE-100-95073
SecurityFocus: 92426 - BlueStacks CVE-2016-4288 Local Privilege Escalation Vulnerability
OSVDB: - CVE-2016-4288 - BlueStacks - App Player - Privilege Escalation Issue

Entryinfo

Created: 01/07/2017 12:50
Updated: 04/20/2025 09:18
Changes: 01/07/2017 12:50 (62), 07/15/2020 15:48 (6), 04/20/2025 09:18 (16)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.