wiredmikey writes "Users of iOS devices will find themselves with a new software update to install, thanks to a certificate validation flaw in the mobile popular OS. While Apple provides very little information when disclosing security issues, the company said that an attacker with a 'privileged network position could capture or modify data in sessions protected by SSL/TLS.' 'While this flaw itself does not allow an attacker to compromise a vulnerable device, it is still a very serious threat to the privacy of users as it can be exploited through Man-in-the-Middle attack,' VUPEN's Chaouki Bekrar told SecurityWeek. For example, when connecting to an untrusted WiFi network, attackers could spy on user connections to websites and services that are supposed to be using encrypted communications, Bekrar said. Users should update their iOS devices to iOS 7.0.6 as soon as possible." Adds reader Trailrunner7: "The wording of the description is interesting, as it suggests that the proper certificate-validation checks were in place at some point in iOS but were later removed somehow. The effect of an exploit against this vulnerability would be for an attacker with a man-in-the-middle position on the victim's network would be able to read supposedly secure communications. It's not clear when the vulnerability was introduced, but the CVE entry for the bug was reserved on Jan. 8."