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.[1][2]
| ID | Mitigation | Description |
|---|---|---|
| M1002 | Attestation |
Device attestation can often detect jailbroken devices. |
| 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. |
| ID | Data Source | Data Component | Detects |
|---|---|---|---|
| DS0041 | Application Vetting | API Calls |
Application vetting services may be able to detect known privilege escalation exploits contained within applications, as well as searching application packages for strings that correlate to known password store locations. |
| DS0013 | Sensor Health | Host Status |
Mobile security products can potentially detect jailbroken devices. |