Brakeman files #35
Brakeman files #35
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WalkthroughA new controller named Changes
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Impact AnalysisNew user search by email functionality added📢 Medium 🔄 Impacts behavior A new controller action allows users (or system components) to retrieve a list of users filtered by email address via the index action. This enables searching for users by email, which was not previously available. Test the index action with various email parameters, including valid, invalid, and edge cases (e.g., missing or malformed emails). Verify that the correct users are returned and that no unauthorized data is exposed. 🔍 Related Files
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Actionable comments posted: 2
🧹 Nitpick comments (1)
app/controllers/users_controllers.rb (1)
2-4: Consider adding authorization and paginationThe current implementation could benefit from:
- Authorization: Ensure users can only access permitted data
- Pagination: Handle large result sets efficiently
- Input validation: Validate the email parameter
Example implementation with these improvements:
def index authorize :user, :index? # Using Pundit or similar @users = User.where(email: params[:email]) .page(params[:page]) .per(25) respond_to do |format| format.html format.json { render json: @users } end rescue StandardError => e redirect_to root_path, alert: "An error occurred: #{e.message}" endWould you like me to help implement any of these improvements?
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📒 Files selected for processing (1)
app/controllers/users_controllers.rb(1 hunks)
🧰 Additional context used
🪛 Brakeman (7.0.2)
app/controllers/users_controllers.rb
[medium] 3-3: Possible SQL injection
Type: SQL Injection
Confidence: Medium
More info: https://brakemanscanner.org/docs/warning_types/sql_injection/
(SQL Injection)
| @@ -0,0 +1,6 @@ | |||
| class UsersController < ApplicationController | |||
| def index | |||
| @users = User.where("email = '#{params[:email]}'") | |||
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Critical: Fix SQL injection vulnerability
The current implementation is vulnerable to SQL injection attacks. User input from params[:email] is directly interpolated into the SQL query string, allowing malicious users to execute arbitrary SQL commands.
Apply this fix to use parameterized queries:
- @users = User.where("email = '#{params[:email]}'")
+ @users = User.where(email: params[:email])Alternatively, if you need to use SQL fragments:
@users = User.where("email = ?", params[:email])🧰 Tools
🪛 Brakeman (7.0.2)
[medium] 3-3: Possible SQL injection
Type: SQL Injection
Confidence: Medium
More info: https://brakemanscanner.org/docs/warning_types/sql_injection/
(SQL Injection)
🤖 Prompt for AI Agents
In app/controllers/users_controllers.rb at line 3, the current code directly
interpolates user input into the SQL query, causing a SQL injection
vulnerability. To fix this, replace the string interpolation with a
parameterized query by using a placeholder and passing params[:email] as a
separate argument, like User.where("email = ?", params[:email]). This change
ensures safe query execution by properly escaping user input.
| class UsersController < ApplicationController | ||
| def index | ||
| @users = User.where("email = '#{params[:email]}'") | ||
| end | ||
| end |
There was a problem hiding this comment.
💡 Verification agent
🧩 Analysis chain
Fix file naming convention
The filename users_controllers.rb should be users_controller.rb (singular "controller"). This follows Rails naming conventions and ensures proper autoloading.
Run this script to check for any references to this file that might need updating:
🏁 Script executed:
#!/bin/bash
# Description: Check for references to the incorrectly named file
# Search for any references to the incorrect filename
rg -i "users_controllers" --type ruby
# Check if the correct filename already exists
fd -t f "users_controller.rb"Length of output: 67
🏁 Script executed:
#!/bin/bash
# List all Ruby files under app/controllers to verify the actual filenames
fd -e rb app/controllers
# Search for files defining UsersController to pinpoint where the class is declared
rg -l "class UsersController" --type rubyLength of output: 473
Fix file naming convention and improve controller
The controller file is misnamed and missing essential safeguards:
-
Rename
app/controllers/users_controllers.rb→app/controllers/users_controller.rb
No references to the old filename were found, but Rails autoloading will break until the file is renamed.
-
Add authorization
- e.g.
class UsersController < ApplicationController before_action :authenticate_user! # Devise # or # after_action :verify_authorized, except: :index # Pundit
- Inside
index, call your authorization library (e.g.authorize User).
- e.g.
-
Add pagination
- Prevent unbounded result sets:
def index @users = User.where(email: params[:email]) .page(params[:page]) .per(params[:per_page] || 25) end
- Requires a pagination gem like Kaminari or WillPaginate.
- Prevent unbounded result sets:
🧰 Tools
🪛 Brakeman (7.0.2)
[medium] 3-3: Possible SQL injection
Type: SQL Injection
Confidence: Medium
More info: https://brakemanscanner.org/docs/warning_types/sql_injection/
(SQL Injection)
🤖 Prompt for AI Agents
In app/controllers/users_controllers.rb lines 1 to 5, rename the file to
users_controller.rb to follow Rails naming conventions and avoid autoloading
issues. Add an authorization callback such as before_action :authenticate_user!
or after_action :verify_authorized to secure the controller. Modify the index
action to use parameterized queries (e.g., User.where(email: params[:email])) to
prevent SQL injection, and add pagination using a gem like Kaminari by chaining
.page(params[:page]).per(params[:per_page] || 25) to limit result sets.
Summary by CodeRabbit