lists.openwall.net   lists  /  announce  owl-users  owl-dev  john-users  john-dev  passwdqc-users  yescrypt  popa3d-users  /  oss-security  kernel-hardening  musl  sabotage  tlsify  passwords  /  crypt-dev  xvendor  /  Bugtraq  Full-Disclosure  linux-kernel  linux-netdev  linux-ext4  PHC 
Open Source and information security mailing list archives
 
Hash Suite: Windows password security audit tool. GUI, reports in PDF.
[<prev] [next>] [thread-next>] [day] [month] [year] [list]
Date: Fri, 29 Jan 2010 12:54:01 -0700
From: cryptopath@...il.com
To: bugtraq@...urityfocus.com
Subject: iPhone certificate flaws

iPhones can be configured over the air by inviting users to download .mobileconfig files from a URL. This feature is used by large companies and universities to distribute various settings to a large number of iPhones.

For security reasons, these files need to be cryptographically signed to be trusted and shown as such. It appears that there is a flaw in the trust chain used by iPhones to validate .mobileconfig signers. Any signature certificate issued by a root CA present in the Safari keystore will be trusted. This is the case for e.g. demo certificates delivered by Verisign (Level 1) at no cost and without any verification.

Using this, it is easy for a phisher to create a mobileconfig files that re-directs all HTTP traffic to a dedicated server, sign it with a certificate identifying it as issued by an authority of their choice, and having it trusted by the iPhone. These config files also allow to place additional root certificates in an iPhone, making it possible to install man-in-the-middle HTTPS attacks.

More information is available from:
http://cryptopath.wordpress.com/2010/01/29/iphone-certificate-flaws/

Powered by blists - more mailing lists