Fix code scanning alert no. 22: Email content injection #30
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Co-authored-by: Copilot Autofix powered by AI <62310815+github-advanced-security[bot]@users.noreply.github.com> Signed-off-by: gitworkflows <[email protected]>
Reviewer's Guide by SourceryThis pull request fixes a code scanning alert by validating and sanitizing the recipient email address before sending emails. It uses the Class diagram for email service changesclassDiagram
class EmailService {
+sendEmailViaSES(recipient, subject, htmlBody, textBody) error
+sendEmailViaSMTP(recipient, subject, htmlBody, textBody) error
-isValidEmail(email string) bool
}
note for EmailService "Added email validation"
class mail.Address {
+Name string
+Address string
}
EmailService ..> mail.Address : uses for validation
File-Level Changes
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Caution Review failedThe pull request is closed. WalkthroughThe changes introduce a new function Changes
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There was a problem hiding this comment.
Hey @gitworkflows - I've reviewed your changes - here's some feedback:
Overall Comments:
- The email validation needs to be added to sendEmailViaSES() as well to ensure consistent security across all email sending paths.
Here's what I looked at during the review
- 🟡 General issues: 1 issue found
- 🟢 Security: all looks good
- 🟢 Testing: all looks good
- 🟢 Complexity: all looks good
- 🟢 Documentation: all looks good
Help me be more useful! Please click 👍 or 👎 on each comment and I'll use the feedback to improve your reviews.
| @@ -53,6 +54,10 @@ func sendEmailViaSES(recipient, subject, htmlBody, textBody string) error { | |||
| } | |||
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| func sendEmailViaSMTP(recipient, subject, htmlBody, textBody string) error { | |||
| if !isValidEmail(recipient) { | |||
There was a problem hiding this comment.
suggestion: Email validation should also be added to sendEmailViaSES for consistency
Currently only SMTP email sending validates the recipient address. This could lead to inconsistent behavior and potential errors when using SES.
Suggested implementation:
// sendEmailViaSES sends an email using AWS SES
func sendEmailViaSES(recipient, subject, htmlBody, textBody string) error {
if !isValidEmail(recipient) {
return fmt.Errorf("invalid recipient email address")
}
sess := session.Must(session.NewSession())
svc := ses.New(sess)
input := &ses.SendEmailInput{
Destination: &ses.Destination{
ToAddresses: []*string{
aws.String(recipient),
},
},
Message: &ses.Message{
Body: &ses.Body{
Html: &ses.Content{
Charset: aws.String("UTF-8"),
Data: aws.String(htmlBody),
},
Text: &ses.Content{
Charset: aws.String("UTF-8"),
Data: aws.String(textBody),
},
},
Subject: &ses.Content{
Charset: aws.String("UTF-8"),
Data: aws.String(subject),
},
},
Source: aws.String(os.Getenv("FROM_EMAIL")),
}
_, err := svc.SendEmail(input)
return err
}Note: I had to reconstruct the sendEmailViaSES function based on typical AWS SES usage. You may need to adjust the implementation details (like the Source email address environment variable name) to match your existing codebase.
User description
Fixes https://github.com/khulnasoft/gpt4cli/security/code-scanning/22
To fix the problem, we need to sanitize the user input before using it in the email headers and body. Specifically, we should ensure that the
recipientemail address is validated to be a proper email format and does not contain any malicious content. We can use a well-known library for email validation to achieve this.recipientemail address to ensure it is in a proper format.recipientemail address to remove any potentially harmful content.Suggested fixes powered by Copilot Autofix. Review carefully before merging.
Summary by Sourcery
Validate recipient email addresses before sending emails.
Bug Fixes:
Enhancements:
PR Type
Bug fix, Enhancement
Description
Added email validation to prevent content injection vulnerabilities.
Introduced
isValidEmailfunction usingnet/mailfor email parsing.Enhanced
sendEmailViaSMTPto validate recipient email addresses.Improved security for email sending functionality.
Changes walkthrough 📝
email.go
Add email validation to enhance securityapp/server/email/email.go
isValidEmailfunction to validate email addresses.sendEmailViaSMTPfunction.net/mailpackage for email parsing.Summary by CodeRabbit
New Features
Bug Fixes