Apple has issued a security alert affecting iOS 7.0.6 which could put iPhone and iPad users at risk from man-in-the-middle style hacking attacks.
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In the security alert, Apple stated: "An attacker with a privileged network position may capture or modify data in sessions protected by SSL/TLS."
The US national institute of standards and technology (Nist) national vulnerability database reported that the attack can occur due to a bug in the secure transport feature in the data security component in Apple iOS 6.x before 6.1.6 and 7.x before 7.0.6, Apple TV 6.x before 6.0.2, and Apple OS X 10.9.x before 10.9.2.
Nist stated that Apple’s implementation of SSL/TLS does not check the signature in a TLS server key exchange message, which allows man-in-the-middle (MITM) attackers to spoof SSL servers by using an arbitrary private key for the signing step or omitting the signing step.
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The ImperialViolet site listed code verifying the attack.
The site stated: “[The bug] affects anything that uses SecureTransport, which is most software on those platforms, although not Chrome and Firefox which both use NSS for SSL/TLS.”
The site’s owner suggested that enabling only TLS 1.2 would be a viable workaround. It is also possible to use only the RSA cipher suite, according to ImperialViolet.