VDB-161359 · CVE-2020-9959 · HT211850

Apple iOS/iPadOS up to 13.7 Siri Lockscreen improper authentication

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.
2.3	$0-$5k	0.00

Summaryinfo

A vulnerability identified as problematic has been detected in Apple iOS and iPadOS up to 13.7. Affected by this vulnerability is an unknown functionality of the component Siri. This manipulation causes improper authentication (Lockscreen). The identification of this vulnerability is CVE-2020-9959. It is feasible to perform the attack on the physical device. There is no exploit available. You should upgrade the affected component.

Detailsinfo

A vulnerability was found in Apple iOS and iPadOS up to 13.7 (Smartphone Operating System). It has been declared as problematic. Affected by this vulnerability is some unknown functionality of the component Siri. The manipulation with an unknown input leads to a improper authentication vulnerability (Lockscreen). The CWE definition for the vulnerability is CWE-287. When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct. As an impact it is known to affect confidentiality.

The weakness was shared 09/16/2020 by Andrew Goldberg, Meli̇h Kerem Güneş and Sinan Gulguler as HT211850 as confirmed advisory (Website). It is possible to read the advisory at support.apple.com. This vulnerability is known as CVE-2020-9959. Attacking locally is a requirement. The exploitation doesn't need any form of authentication. The technical details are unknown and an exploit is not publicly available. The advisory points out:

A lock screen issue allowed access to messages on a locked device. This issue was addressed with improved state management.

Upgrading to version 14.0 eliminates this vulnerability. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The entries VDB-161350, VDB-161351, VDB-161352 and VDB-161353 are related to this item. Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Type

Smartphone Operating System

Vendor

Apple

Name

Version

License

commercial

Website

Vendor: https://www.apple.com/

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 2.4
VulDB Meta Temp Score: 2.3

VulDB Base Score: 2.4
VulDB Temp Score: 2.3
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
Class: Improper authentication / Lockscreen
CWE: CWE-287
CAPEC: 🔍
ATT&CK: 🔍

Physical: Yes
Local: Yes
Remote: No

Availability: 🔍
Status: Not defined

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: Upgrade
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Upgrade: iOS/iPadOS 14.0

Timelineinfo

09/16/2020 🔍
09/16/2020 +0 days 🔍
09/17/2020 +1 days 🔍
09/17/2020 +0 days 🔍

Sourcesinfo

Vendor: apple.com

Advisory: HT211850
Researcher: Andrew Goldberg, Meli̇h Kerem Güneş, Sinan Gulguler
Status: Confirmed

CVE: CVE-2020-9959 (🔍)
GCVE (CVE): GCVE-0-2020-9959
GCVE (VulDB): GCVE-100-161359
scip Labs: https://www.scip.ch/en/?labs.20150917
See also: 🔍

Entryinfo

Created: 09/17/2020 06:58
Updated: 09/17/2020 07:03
Changes: 09/17/2020 06:58 (48), 09/17/2020 07:03 (2)
Complete: 🔍
Cache ID: 216::103