CVE-2021-30855
 
Severity Score
5.5
*CVSS v3.1
Exploit Likelihood
*EPSS
Affected Versions
*CPE
Public Exploits
0
*Multiple Sources
Exploited in Wild
-
*KEV
Decision
-
*SSVC
Descriptions
A validation issue existed in the handling of symlinks. This issue was addressed with improved validation of symlinks. This issue is fixed in Security Update 2021-005 Catalina, iOS 14.8 and iPadOS 14.8, iOS 15 and iPadOS 15, watchOS 8, macOS Big Sur 11.6. An application may be able to access restricted files.
Se presentó un problema de comprobación en el manejo de los enlaces simbólicos. Este problema se abordó con una comprobación de enlaces simbólicos mejorada. Este problema se corrigió en Security Update 2021-005 Catalina, iOS versión 14.8 y iPadOS versión 14.8, iOS versión 15 y iPadOS versión 15, watchOS versión 8, macOS Big Sur versión 11.6. Una aplicación podría acceder a archivos restringidos
*Credits:
N/A
CVSS Scores
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Attack Vector
Attack Complexity
Authentication
Confidentiality
Integrity
Availability
* Common Vulnerability Scoring System
SSVC
- Decision:-
Exploitation
Automatable
Tech. Impact
* Organization's Worst-case Scenario
Timeline
- 2021-04-13 CVE Reserved
- 2021-08-24 CVE Published
- 2024-08-03 CVE Updated
- 2024-10-25 EPSS Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
- ---------- First Exploit
CWE
- CWE-59: Improper Link Resolution Before File Access ('Link Following')
CAPEC
References (6)
URL | Tag | Source |
---|---|---|
https://support.apple.com/en-us/HT212804 | X_refsource_misc | |
https://support.apple.com/en-us/HT212805 | X_refsource_misc | |
https://support.apple.com/en-us/HT212807 | X_refsource_misc | |
https://support.apple.com/en-us/HT212814 | X_refsource_misc | |
https://support.apple.com/en-us/HT212819 | X_refsource_misc | |
https://support.apple.com/kb/HT212815 | X_refsource_confirm |
URL | Date | SRC |
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URL | Date | SRC |
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URL | Date | SRC |
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Affected Vendors, Products, and Versions
Vendor | Product | Version | Other | Status | ||||||
---|---|---|---|---|---|---|---|---|---|---|
Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
Apple Search vendor "Apple" | Ipados Search vendor "Apple" for product "Ipados" | < 14.8 Search vendor "Apple" for product "Ipados" and version " < 14.8" | - |
Affected
| ||||||
Apple Search vendor "Apple" | Iphone Os Search vendor "Apple" for product "Iphone Os" | < 14.8 Search vendor "Apple" for product "Iphone Os" and version " < 14.8" | - |
Affected
| ||||||
Apple Search vendor "Apple" | Mac Os X Search vendor "Apple" for product "Mac Os X" | < 10.15.7 Search vendor "Apple" for product "Mac Os X" and version " < 10.15.7" | - |
Affected
| ||||||
Apple Search vendor "Apple" | Mac Os X Search vendor "Apple" for product "Mac Os X" | 10.15.7 Search vendor "Apple" for product "Mac Os X" and version "10.15.7" | - |
Affected
| ||||||
Apple Search vendor "Apple" | Mac Os X Search vendor "Apple" for product "Mac Os X" | 10.15.7 Search vendor "Apple" for product "Mac Os X" and version "10.15.7" | security_update_2020-001 |
Affected
| ||||||
Apple Search vendor "Apple" | Mac Os X Search vendor "Apple" for product "Mac Os X" | 10.15.7 Search vendor "Apple" for product "Mac Os X" and version "10.15.7" | security_update_2021-001 |
Affected
| ||||||
Apple Search vendor "Apple" | Mac Os X Search vendor "Apple" for product "Mac Os X" | 10.15.7 Search vendor "Apple" for product "Mac Os X" and version "10.15.7" | security_update_2021-002 |
Affected
| ||||||
Apple Search vendor "Apple" | Mac Os X Search vendor "Apple" for product "Mac Os X" | 10.15.7 Search vendor "Apple" for product "Mac Os X" and version "10.15.7" | security_update_2021-003 |
Affected
| ||||||
Apple Search vendor "Apple" | Mac Os X Search vendor "Apple" for product "Mac Os X" | 10.15.7 Search vendor "Apple" for product "Mac Os X" and version "10.15.7" | security_update_2021-004 |
Affected
| ||||||
Apple Search vendor "Apple" | Mac Os X Search vendor "Apple" for product "Mac Os X" | 10.15.7 Search vendor "Apple" for product "Mac Os X" and version "10.15.7" | supplemental_update |
Affected
| ||||||
Apple Search vendor "Apple" | Macos Search vendor "Apple" for product "Macos" | < 11.6 Search vendor "Apple" for product "Macos" and version " < 11.6" | - |
Affected
| ||||||
Apple Search vendor "Apple" | Tvos Search vendor "Apple" for product "Tvos" | < 15.0 Search vendor "Apple" for product "Tvos" and version " < 15.0" | - |
Affected
| ||||||
Apple Search vendor "Apple" | Watchos Search vendor "Apple" for product "Watchos" | < 8.0 Search vendor "Apple" for product "Watchos" and version " < 8.0" | - |
Affected
|