Self-signed certificate on iOS

Duncan

https://cordova.apache.org/docs/en/8.x/guide/appdev/security/index.html mentions

The reason is that accepting a self-signed certificate bypasses certificate chain verification, making the device think any server certificate is valid.

  • Does this mean that any SSL traffic from any app is insecure once the iOS device trusts any self-signed certificate?
  • If yes, what Apple recommends to do about that (I believe I can't prevent users from trusting self-signed certificates for any reason). I can somehow check if any such certificate is trusted (in this example I use Cordova).
  • Or just connect to self-signed certificates that don't have SSL verification applied?
jcesarmobile

When using Cordova on iOS, if you want to use a self-signed certificate, you must add this code to your application.

@implementation NSURLRequest(DataController) + (BOOL)allowsAnyHTTPSCertificateForHost:(NSString *)host { return YES; } @end

so it might mean

The reason is that accepting a self-signed certificate bypasses certificate chain verification, making the device think any server certificate is valid.

Unlike Android, once you add all validations are skipped, so it's all or nothing.

Adding will only affect your app, not other apps, but will affect all connections made by the WebView. So this makes your application extremely insecure, because people can easily be man-in-the-middle attacks.

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