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.
6.0	$0-$5k	0.00

A vulnerability, which was classified as very critical, has been found in Google Android (Smartphone Operating System). Affected by this issue is an unknown functionality of the component Stagefright. The manipulation as part of a Video File leads to a numeric error vulnerability. Using CWE to declare the problem leads to CWE-189. Impacted is confidentiality, integrity, and availability.

The issue has been introduced in 05/20/2010. The weakness was released 07/27/2015 by Joshua Drake with Zimperium zLabs as Stagefright: It Only Takes One Text To Hack 950 Million Android Phones as not defined article (Forbes). The advisory is available at forbes.com. The public release was coordinated with the vendor. This vulnerability is handled as CVE-2015-3829 since 05/12/2015. The attack may be launched remotely. No form of authentication is required for exploitation. Technical details are unknown but a public exploit is available. The structure of the vulnerability defines a possible price range of USD $0-$5k at the moment (estimation calculated on 06/07/2022). It is expected to see the exploit prices for this product increasing in the near future.This vulnerability has a historic impact due to its background and reception. The advisory points out:

Six critical vulnerabilities have left 95 per cent of Google Android phones open to an attack delivered by a simple multimedia text, a mobile security expert warned today. (...) All attackers would need to send out exploits would be mobile phone numbers, Drake noted. From there, they could send an exploit packaged in a Stagefright multimedia message (MMS), which would let them write code to the device and steal data from sections of the phone that can be reached with Stagefright’s permissions. That would allow for recording of audio and video, and snooping on photos stored in SD cards. Bluetooth would also be hackable via Stagefright.

A public exploit has been developed in Python. The exploit is available at securityfocus.com. It is declared as proof-of-concept. The vulnerability was handled as a non-public zero-day exploit for at least 1894 days. During that time the estimated underground price was around $25k-$100k. The advisory illustrates:

The researcher noted that on some older devices, including the Samsung S4 and the LG Optimus Elite, the exploitable process runs with system-level privileges, providing wide access across the phone.

Applying a patch is able to eliminate this problem. The article contains the following remark:

Google informed HTC of the issue and provided the necessary patches, which HTC began rolling into projects in early July. All projects going forward contain the required fix.

According to Ars Technica the Nexus 5 running 5.1.1 is still fully exploitable and the Nexus 6 is only partially patched.

blog.zimperium.com is providing further details. Entries connected to this vulnerability are available at 76820, 76821, 76822 and 76823.

Affected

• Blackphone PrivatOS up to 1.1.6
• CyanogenMod up to 12.0
• Google Android up to 5.1.1

Not Affected

• Blackphone PrivatOS 1.1.7
• CyanogenMod 12.1
• Google Android up to 2.1

Productinfo

Type

• Smartphone Operating System

Vendor

• Google

Name

• Android

Version

• 2.2
• 2.2.1
• 2.2.2
• 2.2.3
• 2.3
• 2.3.1
• 2.3.2
• 2.3.3
• 2.3.4
• 2.3.5
• 2.3.6
• 2.3.7
• 3.0
• 3.1
• 3.2
• 3.2.1
• 3.2.2
• 3.2.3
• 3.2.4
• 3.2.5
• 3.2.6
• 4.0
• 4.0.1
• 4.0.2
• 4.0.3
• 4.0.4
• 4.1
• 4.1.1
• 4.1.2
• 4.2
• 4.2.1
• 4.2.2
• 4.3
• 4.3.1
• 4.4
• 4.4.1
• 4.4.2
• 4.4.3
• 4.4.4
• 5.0
• 5.0.1
• 5.0.2
• 5.1
• 5.1.1

License

• free

CPE 2.3info

• 🔍
• 🔍
• 🔍

CPE 2.2info

• 🔍
• 🔍
• 🔍

Screenshot

Video

CVSSv4info

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

CVSSv3info

VulDB Meta Base Score: 7.3
VulDB Meta Temp Score: 6.0

VulDB Base Score: 7.3
VulDB Temp Score: 6.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

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: Numeric error
CWE: CWE-189
ATT&CK: Unknown

Local: No
Remote: Yes

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

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Patch
Status: 🔍

0-Day Time: 🔍
Fortigate IPS: 🔍

Timelineinfo

05/20/2010 🔍
04/09/2015 +1785 days 🔍
05/12/2015 +33 days 🔍
07/27/2015 +76 days 🔍
07/27/2015 +0 days 🔍
07/27/2015 +0 days 🔍
07/28/2015 +1 days 🔍
07/28/2015 +0 days 🔍
07/28/2015 +0 days 🔍
09/30/2015 +64 days 🔍
06/07/2022 +2442 days 🔍

Sourcesinfo

Vendor: google.com

Advisory: Stagefright: It Only Takes One Text To Hack 950 Million Android Phones
Researcher: Joshua Drake
Organization: Zimperium zLabs
Status: Not defined
Confirmation: 🔍
Coordinated: 🔍

CVE: CVE-2015-3829 (🔍)
SecurityTracker: 1033094 - Google Android MMS Media Processing Flaw Lets Remote Users Execute Arbitrary Code on the Target System
Vulnerability Center: 51638 - Google Android 2.2 - 5.1.1 Remote Code Execution Vulnerability via Crafted MMS - CVE-2015-3829, Critical
SecurityFocus: 76052 - Google Stagefright Media Playback Engine Multiple Remote Code Execution Vulnerabilities

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

Entryinfo

Created: 07/28/2015 17:00
Updated: 06/07/2022 06:31
Changes: 07/28/2015 17:00 (78), 08/03/2017 03:24 (13), 06/07/2022 06:31 (3)
Complete: 🔍

Discussion

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