Known Exploited Vulnerability
7.8
HIGH
CVE-2020-27932
Apple Multiple Products Type Confusion Vulnerabili - [Actively Exploited]
Description

A type confusion issue was addressed with improved state handling. This issue is fixed in macOS Big Sur 11.0.1, watchOS 7.1, iOS 12.4.9, watchOS 6.2.9, Security Update 2020-006 High Sierra, Security Update 2020-006 Mojave, iOS 14.2 and iPadOS 14.2, watchOS 5.3.9, macOS Catalina 10.15.7 Supplemental Update, macOS Catalina 10.15.7 Update. A malicious application may be able to execute arbitrary code with kernel privileges.

INFO

Published Date :

Dec. 8, 2020, 9:15 p.m.

Last Modified :

Feb. 11, 2021, 7:50 p.m.

Remotely Exploitable :

No

Impact Score :

5.9

Exploitability Score :

1.8
CISA Notification
CISA KEV (Known Exploited Vulnerabilities)

For the benefit of the cybersecurity community and network defenders—and to help every organization better manage vulnerabilities and keep pace with threat activity—CISA maintains the authoritative source of vulnerabilities that have been exploited in the wild.

Description :

Apple iOS, iPadOS, macOS, and watchOS contain a type confusion vulnerability that may allow a malicious application to execute code with kernel privileges.

Required Action :

Apply updates per vendor instructions.

Public PoC/Exploit Available at Github

CVE-2020-27932 has a 2 public PoC/Exploit available at Github. Go to the Public Exploits tab to see the list.

Affected Products

The following products are affected by CVE-2020-27932 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Apple macos
2 Apple itunes
3 Apple mac_os_x
4 Apple iphone_os
5 Apple watchos
6 Apple icloud
7 Apple ipados
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2020-27932.

URL Resource
http://packetstormsecurity.com/files/161295/XNU-Kernel-Turnstiles-Type-Confusion.html Third Party Advisory VDB Entry
http://seclists.org/fulldisclosure/2020/Dec/32 Mailing List Third Party Advisory
https://support.apple.com/en-us/HT211928 Vendor Advisory
https://support.apple.com/en-us/HT211929 Vendor Advisory
https://support.apple.com/en-us/HT211931 Vendor Advisory
https://support.apple.com/en-us/HT211940 Vendor Advisory
https://support.apple.com/en-us/HT211944 Vendor Advisory
https://support.apple.com/en-us/HT211945 Vendor Advisory
https://support.apple.com/en-us/HT211946 Vendor Advisory
https://support.apple.com/en-us/HT211947 Vendor Advisory

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Ostorlab KEV: One-command to detect most remotely known exploitable vulnerabilities. Sourced from CISA KEV, Google's Tsunami, Ostorlab's Asteroid and Bug Bounty programs.

cisa-kev vulnerability 0day cisa exploits

Updated: 1 week, 4 days ago
516 stars 32 fork 32 watcher
Born at : April 19, 2022, 8:58 a.m. This repo has been linked 1181 different CVEs too.

Here is some resources about macOS/iOS system security.

Updated: 3 weeks, 1 day ago
496 stars 49 fork 49 watcher
Born at : Aug. 26, 2020, 8:21 a.m. This repo has been linked 166 different CVEs too.

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2020-27932 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2020-27932 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE Modified by [email protected]

    May. 14, 2024

    Action Type Old Value New Value
  • Modified Analysis by [email protected]

    Feb. 11, 2021

    Action Type Old Value New Value
    Changed Reference Type http://packetstormsecurity.com/files/161295/XNU-Kernel-Turnstiles-Type-Confusion.html No Types Assigned http://packetstormsecurity.com/files/161295/XNU-Kernel-Turnstiles-Type-Confusion.html Third Party Advisory, VDB Entry
    Changed Reference Type http://seclists.org/fulldisclosure/2020/Dec/32 No Types Assigned http://seclists.org/fulldisclosure/2020/Dec/32 Mailing List, Third Party Advisory
  • CVE Modified by [email protected]

    Feb. 05, 2021

    Action Type Old Value New Value
    Added Reference http://packetstormsecurity.com/files/161295/XNU-Kernel-Turnstiles-Type-Confusion.html [No Types Assigned]
  • CVE Modified by [email protected]

    Dec. 15, 2020

    Action Type Old Value New Value
    Added Reference http://seclists.org/fulldisclosure/2020/Dec/32 [No Types Assigned]
  • Initial Analysis by [email protected]

    Dec. 09, 2020

    Action Type Old Value New Value
    Added CVSS V2 Metadata Victim must voluntarily interact with attack mechanism
    Added CVSS V2 NIST (AV:N/AC:M/Au:N/C:C/I:C/A:C)
    Added CVSS V3.1 NIST AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
    Changed Reference Type https://support.apple.com/en-us/HT211928 No Types Assigned https://support.apple.com/en-us/HT211928 Vendor Advisory
    Changed Reference Type https://support.apple.com/en-us/HT211929 No Types Assigned https://support.apple.com/en-us/HT211929 Vendor Advisory
    Changed Reference Type https://support.apple.com/en-us/HT211931 No Types Assigned https://support.apple.com/en-us/HT211931 Vendor Advisory
    Changed Reference Type https://support.apple.com/en-us/HT211940 No Types Assigned https://support.apple.com/en-us/HT211940 Vendor Advisory
    Changed Reference Type https://support.apple.com/en-us/HT211944 No Types Assigned https://support.apple.com/en-us/HT211944 Vendor Advisory
    Changed Reference Type https://support.apple.com/en-us/HT211945 No Types Assigned https://support.apple.com/en-us/HT211945 Vendor Advisory
    Changed Reference Type https://support.apple.com/en-us/HT211946 No Types Assigned https://support.apple.com/en-us/HT211946 Vendor Advisory
    Changed Reference Type https://support.apple.com/en-us/HT211947 No Types Assigned https://support.apple.com/en-us/HT211947 Vendor Advisory
    Added CWE NIST CWE-843
    Added CPE Configuration OR *cpe:2.3:a:apple:icloud:*:*:*:*:*:windows:*:* versions up to (excluding) 11.5 *cpe:2.3:a:apple:itunes:*:*:*:*:*:windows:*:* versions up to (excluding) 12.11 *cpe:2.3:o:apple:ipados:*:*:*:*:*:*:*:* versions up to (excluding) 14.2 *cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:* versions up to (excluding) 12.4.9 *cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:* versions from (including) 14.0 up to (excluding) 14.2 *cpe:2.3:o:apple:mac_os_x:*:*:*:*:*:*:*:* versions up to (excluding) 10.15.7 *cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:* versions from (including) 11.0 up to (excluding) 11.0.1 *cpe:2.3:o:apple:watchos:*:*:*:*:*:*:*:* versions up to (excluding) 5.3.9 *cpe:2.3:o:apple:watchos:*:*:*:*:*:*:*:* versions from (including) 6.0 up to (excluding) 6.2.9 *cpe:2.3:o:apple:watchos:*:*:*:*:*:*:*:* versions from (including) 7.0 up to (excluding) 7.1
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2020-27932 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2020-27932 weaknesses.

Exploit Prediction

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.

0.19 }} 0.02%

score

0.56004

percentile

CVSS31 - Vulnerability Scoring System
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability