Raspberry Pi 2 NCP6343 Camera Flash denial of service

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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.
4.7	$0-$5k	0.00

Summaryinfo

A vulnerability was found in Raspberry Pi 2. It has been classified as problematic. This issue affects some unknown processing of the component NCP6343. The manipulation as part of Camera Flash leads to denial of service. Furthermore, an exploit is available. Due to its background and reception, this vulnerability has an historic impact.

Detailsinfo

A vulnerability, which was classified as problematic, has been found in Raspberry Pi 2. This issue affects an unknown code block of the component NCP6343. The manipulation as part of a Camera Flash leads to a denial of service vulnerability. Using CWE to declare the problem leads to CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. Impacted is availability.

The weakness was published 02/07/2015 by PeterO as Why is the PI2 camera-shy ? as not defined posting (Forum). It is possible to read the advisory at raspberrypi.org. The vendor was not involved in the public release. The exploitation is known to be difficult. Attacking locally is a requirement. No form of authentication is needed for a successful exploitation. Technical details are unknown but a public exploit is available. The pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 07/10/2017). Due to its background and reception, this vulnerability has a historic impact. The advisory points out:

I have discovered that my PI2 is camera-shy ! Taking it's picture with a flash causes an instant power off !

A public exploit has been developed by PeterO and been published immediately after the advisory. The exploit is available at raspberrypi.org. It is declared as proof-of-concept.

The posting contains the following remark:

If you need to use your Pi 2 in a situation where it might be flashed at, our advice is to cover U16 (make sure you get the sides too) – the current easy fix is to use a small blob of Sugru or Blu-Tak covering the whole component (someone in the forums used a pellet of bread: the first yeasted bug fix we have encountered), or simply put the Pi in an opaque case.

blog.fefe.de is providing further details. Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Vendor

Raspberry

Name

Version

CPE 2.3info

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CPE 2.2info

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Video

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CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.1
VulDB Meta Temp Score: 4.7

VulDB Base Score: 5.1
VulDB Temp Score: 4.7
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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

Exploitinginfo

Class: Denial of service
CWE: CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: No

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Author: PeterO
Reliability: 🔍
Download: 🔍
Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍
Exploit Delay Time: 🔍

Timelineinfo

02/07/2015 🔍
02/07/2015 +0 days 🔍
02/10/2015 +3 days 🔍
07/10/2017 +881 days 🔍

Sourcesinfo

Advisory: Why is the PI2 camera-shy ?
Researcher: PeterO
Status: Not defined
Confirmation: 🔍

GCVE (VulDB): GCVE-100-69095
scip Labs: https://www.scip.ch/en/?labs.20161013
Misc.: 🔍

Entryinfo

Created: 02/10/2015 15:41
Updated: 07/10/2017 09:01
Changes: 02/10/2015 15:41 (57), 07/10/2017 09:01 (1)
Complete: 🔍
Cache ID: 216:92F:103