cyberstrikeus T1636.001 Calendar Entries
Sub-technique of: T1636
High-Level Description
Adversaries may utilize standard operating system APIs to gather calendar entry data. On Android, this can be accomplished using the Calendar Content Provider. On iOS, this can be accomplished using the EventKit framework.
If the device has been jailbroken or rooted, an adversary may be able to access Calendar Entries without the user’s knowledge or approval.
Kill Chain Phase
- Collection (TA0035)
Platforms: Android, iOS
What to Check
- Identify if Calendar Entries technique is applicable to target mobile environment
- Check Android devices for indicators of Calendar Entries
- Check iOS devices for indicators of Calendar Entries
- Verify mitigations are bypassed or absent (1 known mitigations)
- Assess detection coverage (1 detection strategies)
How to Test
Identify Attack Surface
Determine if the target mobile environment is susceptible to Calendar Entries by examining the target platforms (Android, iOS).
Assess Existing Defenses
Review whether mitigations for T1636.001 are in place. If defenses are absent or misconfigured, this technique may be exploitable.
Remediation Guide
M1011 User Guidance
Calendar access is an uncommonly needed permission, so users should be instructed to use extra scrutiny when granting access to their device calendar.
Detection
Detection of Calendar Entries
Risk Assessment
| Finding | Severity | Impact |
|---|---|---|
| Calendar Entries technique applicable | Low | Collection |
CWE Categories
| CWE ID | Title |
|---|---|
| CWE-200 | Exposure of Sensitive Information |