cyberstrikeus T1634.001 Keychain
Sub-technique of: T1634
High-Level Description
Adversaries may collect keychain data from an iOS device to acquire credentials. Keychains are the built-in way for iOS to keep track of users' passwords and credentials for many services and features such as Wi-Fi passwords, websites, secure notes, certificates, private keys, and VPN credentials.
On the device, the keychain database is stored outside of application sandboxes to prevent unauthorized access to the raw data. Standard iOS APIs allow applications access to their own keychain contained within the database. By utilizing a privilege escalation exploit or existing root access, adversaries can access the entire encrypted database.
Kill Chain Phase
- Credential Access (TA0031)
Platforms: iOS
What to Check
- Identify if Keychain technique is applicable to target mobile environment
- Check iOS devices for indicators of Keychain
- Verify mitigations are bypassed or absent (3 known mitigations)
- Assess detection coverage (1 detection strategies)
How to Test
Identify Attack Surface
Determine if the target mobile environment is susceptible to Keychain by examining the target platforms (iOS).
Assess Existing Defenses
Review whether mitigations for T1634.001 are in place. If defenses are absent or misconfigured, this technique may be exploitable.
Remediation Guide
M1010 Deploy Compromised Device Detection Method
Mobile security products can take appropriate action when jailbroken devices are detected, potentially limiting the adversary’s access to password stores.
M1001 Security Updates
Apple regularly provides security updates for known OS vulnerabilities.
M1002 Attestation
Device attestation can often detect jailbroken devices.
Detection
Detection of Keychain
Risk Assessment
| Finding | Severity | Impact |
|---|---|---|
| Keychain technique applicable | High | Credential Access |
CWE Categories
| CWE ID | Title |
|---|---|
| CWE-522 | Insufficiently Protected Credentials |