TMA-SAFARI-3.2
Ensure 'AutoFill web forms: Credit cards' is 'Disabled'
Description
Safari can store and retrieve payment card information in the user-level keychain. The information is collected during an online purchase, following the user's permission. It is recommended that Safari be configured to not store payment card information in cases where security is paramount. Rationale: If a user's console session is compromised, credit card information may be auto-filled into a website for a malicious purpose. Audit reads AutoFillCreditCardData from the com.apple.Safari preference domain of the account running the scan (the PDF checks the same token in com.apple.Safari.plist; manual check: Follow the below steps and verify that AutoFill web forms: Credit cards is Disabled: 1. Click Safari. 2. Click Preferences. 3. Click AutoFill. 4. Verify AutoFill web forms: Credit cards is unchecked.). Safari is sandboxed, so the reading process needs Full Disk Access on macOS 10.14+. A missing key exits non-zero and is reported as FAIL even where the built-in default is compliant. Values forced by a configuration profile live in /Library/Managed Preferences and are not read here.
How it is checked
Audit method: Shell command
out=$(defaults read com.apple.Safari AutoFillCreditCardData 2>/dev/null) || exit 1; printf '%s\n' "$out"- Expected output
0
How it is fixed
Fix method: Guidance or infrastructure patch
Follow the below steps to set AutoFill web forms: Credit cards to Disabled: 1. Click Safari. 2. Click Preferences. 3. Click AutoFill. 4. Uncheck AutoFill web forms: Credit cards. Or deploy a configuration profile for com.apple.Safari setting AutoFillCreditCardData = false, or as the logged-in user run: defaults write com.apple.Safari AutoFillCreditCardData -bool false and restart Safari.
Properties
- Operating systems
- Any
- Tags
- safaribrowsercis-l2
- Reference
- CIS macOS Safari Benchmark v2.0.0 - 3.2 Ensure 'AutoFill web forms: Credit cards' is 'Disabled'
Check this host
Run this on a machine you are allowed to audit. The scan is read-only.
tmaegis scan --target safari --level 2