Apple iOS up to 12.4.1 Messages Lockscreen information disclosure

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-$5k0.00

Summaryinfo

A vulnerability classified as problematic was found in Apple iOS up to 12.4.1. Affected by this issue is some unknown functionality of the component Messages. Such manipulation leads to information disclosure (Lockscreen). This vulnerability is uniquely identified as CVE-2019-8742. The attack can be executed directly on the physical device. No exploit exists. Upgrading the affected component is advised.

Detailsinfo

A vulnerability was found in Apple iOS up to 12.4.1 (Smartphone Operating System). It has been rated as problematic. Affected by this issue is an unknown function of the component Messages. The manipulation with an unknown input leads to a information disclosure vulnerability (Lockscreen). Using CWE to declare the problem leads to CWE-200. The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information. Impacted is confidentiality. CVE summarizes:

The issue was addressed by restricting options offered on a locked device. This issue is fixed in iOS 13. A person with physical access to an iOS device may be able to access contacts from the lock screen.

The weakness was disclosed 09/26/2019 with videosdebarraquito as HT210606 as confirmed advisory (Website). The advisory is shared for download at support.apple.com. This vulnerability is handled as CVE-2019-8742 since 02/18/2019. The attack needs to be approached locally. No form of authentication is required for exploitation. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1592. The advisory points out:

The issue was addressed by restricting options offered on a locked device.

Upgrading to version 13.0 eliminates this vulnerability. A possible mitigation has been published before and not just after the disclosure of the vulnerability.

The entries VDB-142353, VDB-142348, VDB-142347 and VDB-142349 are pretty similar. VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Type

Vendor

Name

Version

License

Website

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: 🔍

NVD Base Score: 2.4
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
💳💳💳💳💳💳
💳💳💳💳💳💳
💳💳💳💳💳💳
VectorComplexityAuthenticationConfidentialityIntegrityAvailability
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock

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

NVD Base Score: 🔍

Exploitinginfo

Name: Lockscreen
Class: Information disclosure / Lockscreen
CWE: CWE-200 / CWE-284 / CWE-266
CAPEC: 🔍
ATT&CK: 🔍

Physical: Yes
Local: Yes
Remote: No

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-DayUnlockUnlockUnlockUnlock
TodayUnlockUnlockUnlockUnlock

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: iOS 13.0

Timelineinfo

02/18/2019 🔍
09/19/2019 +213 days 🔍
09/26/2019 +7 days 🔍
09/27/2019 +1 days 🔍
09/09/2020 +348 days 🔍

Sourcesinfo

Vendor: apple.com

Advisory: HT210606
Organization: videosdebarraquito
Status: Confirmed

CVE: CVE-2019-8742 (🔍)
GCVE (CVE): GCVE-0-2019-8742
GCVE (VulDB): GCVE-100-142352
scip Labs: https://www.scip.ch/en/?labs.20150917
See also: 🔍

Entryinfo

Created: 09/27/2019 07:25
Updated: 09/09/2020 18:05
Changes: 09/27/2019 07:25 (65), 09/09/2020 18:05 (1)
Complete: 🔍
Cache ID: 216::103

VulDB is the best source for vulnerability data and more expert information about this specific topic.

Discussion

No comments yet. Languages: en.

Please log in to comment.

◂ PreviousOverviewNext ▸

Want to know what is going to be exploited?

We predict KEV entries!