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.
6.3	$0-$5k	0.00

A vulnerability has been found in Google Android 8.0/8.1 (Smartphone Operating System) and classified as critical. Affected by this vulnerability is the function CryptoPlugin::decrypt of the file CryptoPlugin.cpp. The manipulation with an unknown input leads to a out-of-bounds write vulnerability. The CWE definition for the vulnerability is CWE-787. The product writes data past the end, or before the beginning, of the intended buffer. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

In CryptoPlugin::decrypt of CryptoPlugin.cpp, there is a possible out of bounds write due to a missing bounds check. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is needed for exploitation. Product: Android. Versions: 8.0, 8.1. Android ID: A-71389378.

The bug was discovered 03/15/2018. The weakness was published 04/04/2018 by Amir with Zimperium zLabs (Website). It is possible to read the advisory at source.android.com. This vulnerability is known as CVE-2017-13253 since 08/23/2017. Attacking locally is a requirement. A single authentication is needed for exploitation. Technical details and also a public exploit are known.

It is possible to download the exploit at exploit-db.com. It is declared as proof-of-concept. The vulnerability was handled as a non-public zero-day exploit for at least 20 days. During that time the estimated underground price was around $25k-$100k.

Applying a patch is able to eliminate this problem.

The vulnerability is also documented in the databases at Exploit-DB (44291) and SecurityFocus (BID 103255†). Similar entries are available at VDB-114373, VDB-114375, VDB-114638 and VDB-114639.

Productinfo

Type

• Smartphone Operating System

Vendor

• Google

Name

• Android

Version

• 8.0
• 8.1

License

• free

CPE 2.3info

• 🔍
• 🔍

CPE 2.2info

• 🔍
• 🔍

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.5
VulDB Meta Temp Score: 6.3

VulDB Base Score: 5.3
VulDB Temp Score: 4.8
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.8
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: Out-of-bounds write
CWE: CWE-787 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Local: Yes
Remote: No

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Download: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	unlock	unlock	unlock	unlock
Today	unlock	unlock	unlock	unlock

Exploit-DB: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Patch
Status: 🔍

0-Day Time: 🔍

Timelineinfo

08/23/2017 🔍
03/05/2018 +194 days 🔍
03/15/2018 +10 days 🔍
04/04/2018 +20 days 🔍
04/04/2018 +0 days 🔍
04/05/2018 +1 days 🔍
06/06/2024 +2254 days 🔍

Sourcesinfo

Vendor: google.com

Advisory: source.android.com
Researcher: Vasily Vasiliev, Zinuo Han (Amir)
Organization: Zimperium zLabs
Status: Not defined
Confirmation: 🔍

CVE: CVE-2017-13253 (🔍)
SecurityFocus: 103255 - Google Android Media framework Multiple Remote Code Execution Vulnerabilities

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

Entryinfo

Created: 04/05/2018 09:01 AM
Updated: 06/06/2024 01:27 PM
Changes: 04/05/2018 09:01 AM (64), 01/21/2020 04:52 PM (9), 02/08/2021 02:33 PM (2), 06/06/2024 01:27 PM (16)
Complete: 🔍
Cache ID: 18:606:40

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