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.
