Apple iOS 10.0.1 Browser Temporary denial of service

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.
5.2	$5k-$25k	0.00

A vulnerability was found in Apple iOS 10.0.1 (Smartphone Operating System). It has been rated as problematic. Affected by this issue is an unknown code block of the component Browser. The manipulation with an unknown input leads to a denial of service vulnerability (Temporary). 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 bug was discovered 09/27/2016. The weakness was published 10/10/2016 by Marc Ruef and Simon Zumstein with scip AG as sID 92510 as confirmed entry (VulDB). The advisory is available at vuldb.com. The public release has been coordinated with the vendor. The attack may be launched remotely. No form of authentication is required for exploitation. Technical details are unknown but a private exploit is available. The structure of the vulnerability defines a possible price range of USD $5k-$25k at the moment (estimation calculated on 10/10/2016). It is expected to see the exploit prices for this product increasing in the near future.The site keeps loading forever. Sometimes after 1-2 minutes a blank site or a site with object elements of the last site is shown. The issue was tested it on an iPhone 6S and a brand-new iPhone 7. On both devices with Safari and Google Chrome (latest update). The devices were getting really hot and in some cases the browsers aren't usable afterwards anymore. The user would have to close the tab or the app to regain full functionality of the browser.

A private exploit has been developed by Marc Ruef in HTML/CSS. It is declared as functional. The vulnerability was handled as a non-public zero-day exploit for at least 13 days. During that time the estimated underground price was around $25k-$100k. The real existence of this vulnerability is still doubted at the moment.

Apple replied that "[a]fter examining your report we do not see any actual security implications." Further verification of the issue was not possible after this reply. It remains unclear if Apple was able to patch this issue without knowledge of the user.

Productinfo

Type

Smartphone Operating System

Vendor

Apple

Name

Version

10.0.1

License

commercial

CPE 2.3info

🔍

CPE 2.2info

🔍

CVSSv4info

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

CVSSv3info

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 5.2

VulDB Base Score: 5.3
VulDB Temp Score: 5.2
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: 🔍

Exploitinginfo

Name: Temporary
Class: Denial of service / Temporary
CWE: CWE-404
ATT&CK: T1499

Local: No
Remote: Yes

Availability: 🔍
Access: Private
Status: Functional
Author: Marc Ruef
Programming Language: 🔍
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: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

09/27/2016 🔍
09/28/2016 +1 days 🔍
10/07/2016 +9 days 🔍
10/10/2016 +3 days 🔍
10/10/2016 +0 days 🔍
10/10/2016 +0 days 🔍

Sourcesinfo

Vendor: apple.com

Advisory: sID 92510
Researcher: Marc Ruef, Simon Zumstein
Organization: scip AG
Status: Confirmed
Coordinated: 🔍
Disputed: 🔍
scip Labs: https://www.scip.ch/en/?labs.20150917

Entryinfo

Created: 10/10/2016 15:03
Changes: 10/10/2016 15:03 (59), 10/10/2016 15:05 (2)
Complete: 🔍