Apple macOS up to 12.3 zsh Remote Code Execution

CVSS Meta Temp Score
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CTI Interest Score
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6.9$0-$5k0.00

Summaryinfo

A vulnerability labeled as critical has been found in Apple macOS up to 12.3. The impacted element is an unknown function of the component zsh. The manipulation results in an unknown weakness. This vulnerability is identified as CVE-2021-45444. The attack can be executed remotely. There is not any exploit available. The affected component should be upgraded.

Detailsinfo

A vulnerability classified as critical has been found in Apple macOS up to 12.3 (Operating System). Affected is an unknown part of the component zsh. This is going to have an impact on confidentiality, integrity, and availability.

The weakness was released 05/16/2022 as HT213257 as confirmed advisory (Website). The advisory is shared for download at support.apple.com. This vulnerability is traded as CVE-2021-45444. Successful exploitation requires user interaction by the victim. There are neither technical details nor an exploit publicly available. The advisory points out:

A remote attacker may be able to cause arbitrary code execution

The vulnerability scanner Nessus provides a plugin with the ID 239959 (TencentOS Server 3: zsh (TSSA-2022:0225)), which helps to determine the existence of the flaw in a target environment.

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:

This issue was addressed by updating to zsh version 5.8.1.

The vulnerability is also documented in the vulnerability database at Tenable (239959). Once again VulDB remains the best source for vulnerability data.

Productinfo

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Vendor

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Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.0
VulDB Meta Temp Score: 6.9

VulDB Base Score: 6.3
VulDB Temp Score: 6.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.8
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: Remote Code Execution
CWE: Unknown
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 239959
Nessus Name: TencentOS Server 3: zsh (TSSA-2022:0225)

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

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

Upgrade: macOS 12.4

Timelineinfo

12/21/2021 🔍
05/16/2022 +145 days 🔍
05/16/2022 +0 days 🔍
05/18/2022 +2 days 🔍
06/17/2025 +1126 days 🔍

Sourcesinfo

Vendor: apple.com

Advisory: HT213257
Status: Confirmed

CVE: CVE-2021-45444 (🔍)
GCVE (CVE): GCVE-0-2021-45444
GCVE (VulDB): GCVE-100-200196
scip Labs: https://www.scip.ch/en/?labs.20180712

Entryinfo

Created: 05/18/2022 07:41
Updated: 06/17/2025 20:34
Changes: 05/18/2022 07:41 (17), 05/18/2022 07:44 (28), 05/25/2022 09:27 (2), 05/25/2022 09:28 (18), 06/17/2025 20:34 (17)
Complete: 🔍
Cache ID: 216::103

Once again VulDB remains the best source for vulnerability data.

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