t1634-001-keychain

name	T1634.001_keychain
description	Adversaries may collect keychain data from an iOS device to acquire credentials.
category	authentication
version	18.1
author	cyberstrike-official
tags	["mitre-attack","mobile","t1634.001","credential-access","ios","sub-technique"]
technique_id	T1634.001
tactic	credential-access
all_tactics	["credential-access"]
platforms	["iOS"]
mitre_url	https://attack.mitre.org/techniques/T1634/001
tech_stack	["ios"]
cwe_ids	["CWE-522"]
chains_with	["T1634"]
prerequisites	["T1634"]
severity_boost	{"T1634":"Chain with T1634 for deeper attack path"}

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