CVE-2021-1740
Apple File System Directory Path Parsing Vulnerability
Description
A parsing issue in the handling of directory paths was addressed with improved path validation. This issue is fixed in Security Update 2021-002 Catalina, iOS 14.5 and iPadOS 14.5, watchOS 7.4, tvOS 14.5, macOS Big Sur 11.3. A local user may be able to modify protected parts of the file system.
INFO
Published Date :
Sept. 8, 2021, 3:15 p.m.
Last Modified :
Sept. 15, 2021, 3:20 p.m.
Source :
[email protected]
Remotely Exploitable :
No
Impact Score :
3.6
Exploitability Score :
1.8
Public PoC/Exploit Available at Github
CVE-2021-1740 has a 1 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-2021-1740
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.
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-2021-1740.
| URL | Resource |
|---|---|
| https://support.apple.com/en-us/HT212317 | Vendor Advisory |
| https://support.apple.com/en-us/HT212323 | Vendor Advisory |
| https://support.apple.com/en-us/HT212324 | Vendor Advisory |
| https://support.apple.com/en-us/HT212325 | Vendor Advisory |
| https://support.apple.com/en-us/HT212326 | 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).
Here is some resources about macOS/iOS system security.
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2021-1740 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2021-1740 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 -
Initial Analysis by [email protected]
Sep. 15, 2021
Action Type Old Value New Value Added CVSS V2 NIST (AV:L/AC:L/Au:N/C:N/I:P/A:N) Added CVSS V3.1 NIST AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N Changed Reference Type https://support.apple.com/en-us/HT212317 No Types Assigned https://support.apple.com/en-us/HT212317 Vendor Advisory Changed Reference Type https://support.apple.com/en-us/HT212323 No Types Assigned https://support.apple.com/en-us/HT212323 Vendor Advisory Changed Reference Type https://support.apple.com/en-us/HT212324 No Types Assigned https://support.apple.com/en-us/HT212324 Vendor Advisory Changed Reference Type https://support.apple.com/en-us/HT212325 No Types Assigned https://support.apple.com/en-us/HT212325 Vendor Advisory Changed Reference Type https://support.apple.com/en-us/HT212326 No Types Assigned https://support.apple.com/en-us/HT212326 Vendor Advisory Added CWE NIST CWE-22 Added CPE Configuration OR *cpe:2.3:o:apple:ipados:*:*:*:*:*:*:*:* versions up to (excluding) 14.5 *cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:* versions up to (excluding) 14.5 *cpe:2.3:o:apple:mac_os_x:*:*:*:*:*:*:*:* versions from (including) 10.15 up to (including) 10.15.5 *cpe:2.3:o:apple:mac_os_x:10.15.6:-:*:*:*:*:*:* *cpe:2.3:o:apple:mac_os_x:10.15.6:supplemental_update:*:*:*:*:*:* *cpe:2.3:o:apple:mac_os_x:10.15.7:*:*:*:*:*:*:* *cpe:2.3:o:apple:mac_os_x:10.15.7:-:*:*:*:*:*:* *cpe:2.3:o:apple:mac_os_x:10.15.7:security_update_2020:*:*:*:*:*:* *cpe:2.3:o:apple:mac_os_x:10.15.7:security_update_2020-001:*:*:*:*:*:* *cpe:2.3:o:apple:mac_os_x:10.15.7:security_update_2020-005:*:*:*:*:*:* *cpe:2.3:o:apple:mac_os_x:10.15.7:security_update_2020-007:*:*:*:*:*:* *cpe:2.3:o:apple:mac_os_x:10.15.7:security_update_2021-001:*:*:*:*:*:* *cpe:2.3:o:apple:mac_os_x:10.15.7:supplemental_update:*:*:*:*:*:* *cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:* versions from (including) 11.0 up to (excluding) 11.3 *cpe:2.3:o:apple:tvos:*:*:*:*:*:*:*:* versions up to (excluding) 14.5 *cpe:2.3:o:apple:watchos:*:*:*:*:*:*:*:* versions up to (excluding) 7.4
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2021-1740 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-2021-1740
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.04 }} 0.00%
score
0.12360
percentile