7.1
HIGH CVSS 3.1
CVE-2020-9842
Apple iOS/WatchOS/macOS/tvOS Privilege Escalation Entitlement Parsing Vulnerability
Description

An entitlement parsing issue was addressed with improved parsing. This issue is fixed in iOS 13.5 and iPadOS 13.5, macOS Catalina 10.15.5, tvOS 13.4.5, watchOS 6.2.5. A malicious application could interact with system processes to access private information and perform privileged actions.

INFO

Published Date :

June 9, 2020, 5:15 p.m.

Last Modified :

Nov. 21, 2024, 5:41 a.m.

Remotely Exploit :

No
Affected Products

The following products are affected by CVE-2020-9842 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 mac_os_x
3 Apple iphone_os
4 Apple tvos
5 Apple watchos
6 Apple ipados
CVSS Scores
The Common Vulnerability Scoring System is a standardized framework for assessing the severity of vulnerabilities in software and systems. We collect and displays CVSS scores from various sources for each CVE.
Score Version Severity Vector Exploitability Score Impact Score Source
CVSS 2.0 MEDIUM [email protected]
CVSS 3.1 HIGH [email protected]
Solution
An entitlement parsing issue in Apple operating systems allows a malicious application to access private information and perform privileged actions.
  • Upgrade to the latest versions of iOS, iPadOS, macOS, tvOS, and watchOS.
  • For macOS, upgrade to version 10.15.5 or later.
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-2020-9842.

URL Resource
https://support.apple.com/HT211168 Vendor Advisory
https://support.apple.com/HT211170 Vendor Advisory
https://support.apple.com/HT211171 Vendor Advisory
https://support.apple.com/HT211175 Vendor Advisory
https://support.apple.com/HT211168 Vendor Advisory
https://support.apple.com/HT211170 Vendor Advisory
https://support.apple.com/HT211171 Vendor Advisory
https://support.apple.com/HT211175 Vendor Advisory
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2020-9842 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-2020-9842 weaknesses.

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).

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

The following list is the news that have been mention CVE-2020-9842 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2020-9842 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 af854a3a-2127-422b-91ae-364da2661108

    Nov. 21, 2024

    Action Type Old Value New Value
    Added Reference https://support.apple.com/HT211168
    Added Reference https://support.apple.com/HT211170
    Added Reference https://support.apple.com/HT211171
    Added Reference https://support.apple.com/HT211175
  • CVE Modified by [email protected]

    May. 14, 2024

    Action Type Old Value New Value
  • CPE Deprecation Remap by [email protected]

    Jan. 09, 2023

    Action Type Old Value New Value
    Changed CPE Configuration OR *cpe:2.3:o:apple:ipad_os:*:*:*:*:*:*:*:* versions from (excluding) 13.5 OR *cpe:2.3:o:apple:ipados:*:*:*:*:*:*:*:* versions from (excluding) 13.5
  • Modified Analysis by [email protected]

    Jun. 04, 2022

    Action Type Old Value New Value
    Removed CVSS V2 NIST (AV:N/AC:M/Au:N/C:N/I:P/A:N)
    Added CVSS V2 NIST (AV:N/AC:M/Au:N/C:P/I:P/A:N)
    Removed CVSS V3.1 NIST AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N
    Added CVSS V3.1 NIST AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N
  • CVE Modified by [email protected]

    Oct. 16, 2020

    Action Type Old Value New Value
    Changed Description This issue was addressed with improved checks. This issue is fixed in iOS 13.5 and iPadOS 13.5, macOS Catalina 10.15.5, tvOS 13.4.5, watchOS 6.2.5. An application may be able to use arbitrary entitlements. An entitlement parsing issue was addressed with improved parsing. This issue is fixed in iOS 13.5 and iPadOS 13.5, macOS Catalina 10.15.5, tvOS 13.4.5, watchOS 6.2.5. A malicious application could interact with system processes to access private information and perform privileged actions.
  • Initial Analysis by [email protected]

    Jun. 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:N/I:P/A:N)
    Added CVSS V3.1 NIST AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N
    Changed Reference Type https://support.apple.com/HT211168 No Types Assigned https://support.apple.com/HT211168 Vendor Advisory
    Changed Reference Type https://support.apple.com/HT211170 No Types Assigned https://support.apple.com/HT211170 Vendor Advisory
    Changed Reference Type https://support.apple.com/HT211171 No Types Assigned https://support.apple.com/HT211171 Vendor Advisory
    Changed Reference Type https://support.apple.com/HT211175 No Types Assigned https://support.apple.com/HT211175 Vendor Advisory
    Added CWE NIST NVD-CWE-noinfo
    Added CPE Configuration OR *cpe:2.3:o:apple:ipad_os:*:*:*:*:*:*:*:* versions up to (excluding) 13.5 *cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:* versions up to (excluding) 13.5 *cpe:2.3:o:apple:mac_os_x:*:*:*:*:*:*:*:* versions up to (excluding) 10.15.5 *cpe:2.3:o:apple:tvos:*:*:*:*:*:*:*:* versions up to (excluding) 13.4.5 *cpe:2.3:o:apple:watchos:*:*:*:*:*:*:*:* versions up to (excluding) 6.2.5
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.
Vulnerability Scoring Details
Base CVSS Score: 7.1
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality Impact
Integrity Impact
Availability Impact
Base CVSS Score: 5.8
Access Vector
Access Complexity
Authentication
Confidentiality Impact
Integrity Impact
Availability Impact
Exploit Prediction

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

0.33 }} -0.02%

score

0.55333

percentile