VDB-158583 · CVE-2020-9934 · HT211288

Apple iOS/iPadOS up to 13.5.1 CoreFoundation 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.
4.7	$0-$5k	0.00

Summaryinfo

A vulnerability was found in Apple iOS and iPadOS up to 13.5.1. It has been classified as problematic. The impacted element is an unknown function of the component CoreFoundation. Performing a manipulation results in information disclosure. This vulnerability was named CVE-2020-9934. The attack needs to be approached locally. In addition, an exploit is available. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability, which was classified as problematic, was found in Apple iOS and iPadOS up to 13.5.1 (Smartphone Operating System). This affects an unknown code block of the component CoreFoundation. The manipulation with an unknown input leads to a information disclosure vulnerability. CWE is classifying the issue as CWE-200. The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information. This is going to have an impact on confidentiality.

The weakness was presented 07/15/2020 as HT211288 as confirmed advisory (Website). It is possible to read the advisory at support.apple.com. This vulnerability is uniquely identified as CVE-2020-9934. Attacking locally is a requirement. The requirement for exploitation is a authentication. Technical details are unknown but an exploit is available. The attack technique deployed by this issue is T1592 according to MITRE ATT&CK. The advisory points out:

An issue existed in the handling of environment variables. This issue was addressed with improved validation.

It is declared as attacked. The CISA Known Exploited Vulnerabilities Catalog lists this issue since 09/08/2022 with a due date of 09/29/2022:

Apply updates per vendor instructions.

Upgrading to version 13.6 eliminates this vulnerability. A possible mitigation has been published immediately after the disclosure of the vulnerability.

See VDB-158577, VDB-158578, VDB-158579 and VDB-158580 for similar entries. 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: 4.8
VulDB Meta Temp Score: 4.7

VulDB Base Score: 3.3
VulDB Temp Score: 3.2
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 5.5
NVD Vector: 🔍

CNA Base Score: 5.5
CNA Vector: 🔍

CVSSv2info

AV	AC	Au	C	I	A
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💳	💳	💳	💳	💳	💳
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Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

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

Physical: Partially
Local: Yes
Remote: No

Availability: 🔍
Status: Attacked

EPSS Score: 🔍
EPSS Percentile: 🔍

KEV Added: 🔍
KEV Due: 🔍
KEV Remediation: 🔍
KEV Ransomware: 🔍
KEV Notice: 🔍

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 13.6

Timelineinfo

03/02/2020 🔍
07/15/2020 +135 days 🔍
07/15/2020 +0 days 🔍
07/16/2020 +1 days 🔍
01/29/2025 +1658 days 🔍

Sourcesinfo

Vendor: apple.com

Advisory: HT211288
Status: Confirmed

CVE: CVE-2020-9934 (🔍)
GCVE (CVE): GCVE-0-2020-9934
GCVE (VulDB): GCVE-100-158583
scip Labs: https://www.scip.ch/en/?labs.20150917
See also: 🔍

Entryinfo

Created: 07/16/2020 18:15
Updated: 01/29/2025 22:49
Changes: 07/16/2020 18:15 (45), 07/16/2020 18:20 (2), 11/03/2020 09:41 (2), 11/03/2020 09:50 (8), 04/27/2024 16:02 (30), 09/25/2024 12:29 (1), 01/29/2025 22:49 (19)
Complete: 🔍
Cache ID: 216::103