Apple macOS up to 10.15.0 System Extensions input validation

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CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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8.0$0-$5k0.00

A vulnerability classified as critical has been found in Apple macOS up to 10.15.0 (Operating System). This affects an unknown functionality of the component System Extensions. The manipulation with an unknown input leads to a privilege escalation vulnerability. CWE is classifying the issue as CWE-20. This is going to have an impact on confidentiality, integrity, and availability.

The weakness was released 10/29/2019 by Scott Knight with Vmware as HT210722 as confirmed advisory (Website). The advisory is shared at support.apple.com. This vulnerability is uniquely identified as CVE-2019-8805. An attack has to be approached locally. The successful exploitation needs a authentication. Neither technical details nor an exploit are publicly available. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 10/31/2019). It is expected to see the exploit prices for this product increasing in the near future. The advisory points out:

A validation issue existed in the entitlement verification. This issue was addressed with improved validation of the process entitlement.

Upgrading to version 10.15.1 eliminates this vulnerability. A possible mitigation has been published immediately after the disclosure of the vulnerability.

Entries connected to this vulnerability are available at 144590, 144591, 144592 and 144593.

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VulDB Meta Base Score: 8.3
VulDB Meta Temp Score: 8.0

VulDB Base Score: 8.8
VulDB Temp Score: 8.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.8
NVD Vector: 🔍

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VulDB Base Score: 🔍
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Exploitinginfoedit

Class: Privilege escalation
CWE: CWE-20
ATT&CK: Unknown

Local: Yes
Remote: No

Availability: 🔍
Status: Not defined

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfoedit

Interest: 🔍
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Active APT Groups: 🔍

Countermeasuresinfoedit

Recommended: Upgrade
Status: 🔍

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

Upgrade: macOS 10.15.1

Timelineinfoedit

10/29/2019 🔍
10/29/2019 +0 days 🔍
10/31/2019 +2 days 🔍
10/31/2019 +0 days 🔍

Sourcesinfoedit

Vendor: https://www.apple.com/

Advisory: HT210722
Researcher: Scott Knight
Organization: Vmware
Status: Confirmed

CVE: CVE-2019-8805 (🔍)
scip Labs: https://www.scip.ch/en/?labs.20180712
See also: 🔍

Entryinfoedit

Created: 10/31/2019 08:40 AM
Updated: 10/31/2019 08:45 AM
Changes: (17) software_type vulnerability_cwe vulnerability_cvss2_nvd_av vulnerability_cvss2_nvd_ac vulnerability_cvss2_nvd_au vulnerability_cvss2_nvd_ci vulnerability_cvss2_nvd_ii vulnerability_cvss2_nvd_ai vulnerability_cvss3_nvd_av vulnerability_cvss3_nvd_ac vulnerability_cvss3_nvd_pr vulnerability_cvss3_nvd_ui vulnerability_cvss3_nvd_s vulnerability_cvss3_nvd_c vulnerability_cvss3_nvd_i vulnerability_cvss3_nvd_a source_cve_nvd_summary
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