Apple macOS up to 12.3 Security certificate validation

CVSS Meta Temp Score
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CTI Interest Score
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4.8$0-$5k0.00

Summaryinfo

A vulnerability was found in Apple macOS up to 12.3 and classified as problematic. This impacts an unknown function of the component Security. Executing a manipulation can lead to certificate validation. This vulnerability is handled as CVE-2022-26766. It is possible to launch the attack on the local host. Additionally, an exploit exists. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability was found in Apple macOS up to 12.3 (Operating System). It has been declared as problematic. This vulnerability affects an unknown code of the component Security. The manipulation with an unknown input leads to a certificate validation vulnerability. The CWE definition for the vulnerability is CWE-295. The product does not validate, or incorrectly validates, a certificate. As an impact it is known to affect confidentiality, integrity, and availability.

The weakness was released 05/16/2022 by Linus Henze as HT213257 as confirmed advisory (Website). The advisory is shared for download at support.apple.com. This vulnerability was named CVE-2022-26766. Technical details are unknown but a public exploit is available. The MITRE ATT&CK project declares the attack technique as T1587.003. The advisory points out:

A malicious app may be able to bypass signature validation

It is possible to download the exploit at packetstormsecurity.com. It is declared as proof-of-concept.

Upgrading to version 12.4 eliminates this vulnerability. A possible mitigation has been published immediately after the disclosure of the vulnerability. The advisory contains the following remark:

A certificate parsing issue was addressed with improved checks.

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: 5.4
VulDB Meta Temp Score: 5.1

VulDB Base Score: 5.3
VulDB Temp Score: 4.8
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 5.5
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Certificate validation
CWE: CWE-295 / CWE-287
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: Yes

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Download: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

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 12.4

Timelineinfo

03/08/2022 🔍
05/16/2022 +68 days 🔍
05/16/2022 +0 days 🔍
05/18/2022 +2 days 🔍
05/31/2025 +1108 days 🔍

Sourcesinfo

Vendor: apple.com

Advisory: HT213257
Researcher: Linus Henze
Status: Confirmed

CVE: CVE-2022-26766 (🔍)
GCVE (CVE): GCVE-0-2022-26766
GCVE (VulDB): GCVE-100-200176
scip Labs: https://www.scip.ch/en/?labs.20180712

Entryinfo

Created: 05/18/2022 07:32
Updated: 05/31/2025 00:08
Changes: 05/18/2022 07:32 (19), 05/18/2022 07:35 (28), 05/25/2022 08:32 (1), 05/28/2022 14:49 (1), 06/12/2024 19:11 (23), 05/31/2025 00:08 (18)
Complete: 🔍
Cache ID: 216::103

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