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CVE-2025-31213: iCloud Keychain Logging Issue Leading to Potential Data Leakage

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Overview

The vulnerability CVE-2025-31213 is a critical logging issue that has been discovered in several iPadOS and macOS versions. It allows any app to access usernames and associated websites stored in a user’s iCloud Keychain. This vulnerability poses a significant risk to user privacy and system security, as it could lead to potential system compromise or data leakage.

Vulnerability Summary

CVE ID: CVE-2025-31213
Severity: High (7.6 CVSS score)
Attack Vector: Local
Privileges Required: Low
User Interaction: Required
Impact: Access to sensitive information and potential system compromise

Affected Products

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Product | Affected Versions

iPadOS | Up to 17.7.7
macOS Ventura | Up to 13.7.6
macOS Sequoia | Up to 15.5
macOS Sonoma | Up to 14.7.6

How the Exploit Works

The vulnerability exploits a flaw in the logging system of iCloud Keychain. An app, potentially malicious, can access the logging data, which inadvertently contains sensitive information like usernames and associated websites. This occurs due to insufficient data redaction in the logging system, thereby exposing sensitive user information.

Conceptual Example Code

Here is a
conceptual
example indicating how an attacker might exploit this vulnerability:

let keychain = KeychainSwift()
let allKeys = keychain.allKeys
for key in allKeys {
if let username = keychain.get(key) {
print("Username: \(username)")
}
if let website = keychain.get(key + "_website") {
print("Associated Website: \(website)")
}
}

This Swift script mimics what a malicious app might do: iterate through all keys in the iCloud Keychain and print out the usernames and associated websites. It’s a simplified representation, but it captures the core of how this vulnerability might be exploited.

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Disclaimer:

The information and code presented in this article are provided for educational and defensive cybersecurity purposes only. Any conceptual or pseudocode examples are simplified representations intended to raise awareness and promote secure development and system configuration practices.

Do not use this information to attempt unauthorized access or exploit vulnerabilities on systems that you do not own or have explicit permission to test.

Ameeba and its authors do not endorse or condone malicious behavior and are not responsible for misuse of the content. Always follow ethical hacking guidelines, responsible disclosure practices, and local laws.

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