Apple iOS 10.1/10.1.1 Lockscreen Lockscreen Bypass memory corruption

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.
4.8	$0-$5k	0.00

A vulnerability, which was classified as critical, has been found in Apple iOS 10.1/10.1.1 (Smartphone Operating System). Affected by this issue is an unknown function of the component Lockscreen. The manipulation with an unknown input leads to a memory corruption vulnerability (Lockscreen Bypass). Using CWE to declare the problem leads to CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. Impacted is confidentiality, integrity, and availability.

The weakness was released 12/01/2016 by Benjamin Kunz Mejri as VL-ID 2018 as not defined advisory (Website). The advisory is available at vulnerability-lab.com. Local access is required to approach this attack. The successful exploitation requires a simple authentication. Technical details are unknown but a public exploit is available.

A public exploit has been developed by Benjamin Kunz Mejri and been published immediately after the advisory. The exploit is available at youtu.be. It is declared as proof-of-concept. As 0-day the estimated underground price was around $25k-$100k.

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

Productinfo

Type

Smartphone Operating System

Vendor

Apple

Name

Version

License

commercial

CPE 2.3info

CPE 2.2info

Video

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CVSSv4info

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

CVSSv3info

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 4.8

VulDB Base Score: 5.3
VulDB Temp Score: 4.8
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: Lockscreen Bypass
Class: Memory corruption / Lockscreen Bypass
CWE: CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Local: Yes
Remote: No

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Author: Benjamin Kunz Mejri
Download: 🔍
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: 🔍
Exploit Delay Time: 🔍

Timelineinfo

12/01/2016 🔍
12/01/2016 +0 days 🔍
12/02/2016 +1 days 🔍
07/24/2019 +964 days 🔍

Sourcesinfo

Vendor: apple.com

Advisory: VL-ID 2018
Researcher: Benjamin Kunz Mejri
Status: Not defined
scip Labs: https://www.scip.ch/en/?labs.20150917

Entryinfo

Created: 12/02/2016 08:11
Updated: 07/24/2019 17:13
Changes: 12/02/2016 08:11 (48), 07/24/2019 17:13 (2)
Complete: 🔍