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Diana Wilhelmsen Management Limited relocates to Greece
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A format-string bug believed to be a low-risk denial-of-service issue turns out to be much nastier than expected.
A vulnerability in Apple iOS opens the door to remote code execution (RCE), researchers found. The assessment is a revision from a previous understanding of the flaw that viewed it as a low-risk (and somewhat wacky) denial-of-service (DoS) problem affecting iPhone’s Wi-Fi feature.
Apple fixed the original DoS issue with iOS 14.6, without issuing a CVE. But when ZecOps analyzed the bug, researchers found that it could be used for RCE without little interaction with the victim – and that the attack worked on fully patched iPhones.
Malicious iPhone Wi-Fi attack is now more dangerous than ever
Jul 18, 2021, 7:15 PM 4
According to Forbes, Schou has since discovered that there is a way for bad actors to increase the damage done by the hack to the point that getting Wi-Fi up and running again requires a custom factory reset while the iPhone s back up file is manually edited to remove entries that create problems. There had been concerns that the hack, known formally as a format string flaw - could be enhanced to do even more damage. The goal for the bad actors is to use the attack to place malicious code onto handsets and even entire networks.