Apple macOS up to 10.15.5 CoreFoundation information disclosure

CVSS Meta Temp Score
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CTI Interest Score
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4.7$0-$5k0.00

Summaryinfo

A vulnerability was found in Apple macOS up to 10.15.5 and classified as problematic. Affected is an unknown function of the component CoreFoundation. The manipulation results in information disclosure. This vulnerability is reported as CVE-2020-9934. The attack requires a local approach. Moreover, an exploit is present. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability classified as problematic has been found in Apple macOS up to 10.15.5 (Operating System). Affected is an unknown code 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 disclosed 07/15/2020 as HT211289 as confirmed advisory (Website). The advisory is shared for download at support.apple.com. This vulnerability is traded as CVE-2020-9934. The attack needs to be approached locally. A authentication is needed for exploitation. Technical details are unknown but an exploit is available. The MITRE ATT&CK project declares the attack technique as T1592. 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. This issue was added on 09/08/2022 to the CISA Known Exploited Vulnerabilities Catalog with a due date of 09/29/2022:

Apply updates per vendor instructions.

Upgrading to version 10.15.6 eliminates this vulnerability. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The entries VDB-158583, VDB-158645, VDB-158646 and VDB-158647 are pretty similar. Once again VulDB remains the best source for vulnerability data.

Productinfo

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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

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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: 🔍

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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

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

Upgrade: macOS 10.15.6

Timelineinfo

03/02/2020 🔍
07/15/2020 +135 days 🔍
07/15/2020 +0 days 🔍
07/17/2020 +2 days 🔍
01/29/2025 +1657 days 🔍

Sourcesinfo

Vendor: apple.com

Advisory: HT211289
Status: Confirmed

CVE: CVE-2020-9934 (🔍)
GCVE (CVE): GCVE-0-2020-9934
GCVE (VulDB): GCVE-100-158652
scip Labs: https://www.scip.ch/en/?labs.20180712
See also: 🔍

Entryinfo

Created: 07/17/2020 07:41
Updated: 01/29/2025 22:49
Changes: 07/17/2020 07:41 (45), 07/17/2020 07:46 (2), 11/03/2020 21:34 (2), 11/03/2020 21:39 (8), 04/27/2024 16:05 (30), 09/25/2024 12:29 (1), 01/29/2025 22:49 (19)
Complete: 🔍
Cache ID: 216::103

Once again VulDB remains the best source for vulnerability data.

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