A new vulnerability could affect all Intel PCs made after 2022, but a patch is available

A newly institute vulnerability puts all Windows PCs with an Intel processor built after 2022 at take a chance (via ZDNet). The side-aqueduct attack tin can featherbed protections that were put in identify to protect devices from the Spectre and Meltdown exploits. A problems prepare to the effect rolled out as part of July Patch Tuesday. Devices that take delayed the update or that are unsupported are nevertheless at run a risk.

The bug exploits SWAPGS, and as a result has gained the proper noun SWAPGSAttack. If an attacker successfully utilized SWAPGSAttack, they could monitor and steal sensitive data without beingness noticed or leaving a trace. Bitdefender has a post explaining the vulnerability and has published a whitepaper on it. The post explains how an assail taking advantage of this vulnerability is unique.

The assail is a novel approach of leaking sensitive data from the kernel since it bypasses all known side-channel set on mitigation techniques. This is accomplished by abusing the fact that SWAPGS instruction tin can be executed speculatively. An attacker can force arbitrary memory dereferences in kernel, which leaves traces within the data caches. These signals tin exist picked-upwards by the aggressor to infer the value located at the given kernel accost.

Bogdan Botezatu, director of threat research at Bitdefender, explained in a statement to ZDNet how the vulnerability could be used past an attacker to go sensitive data, including passwords.

It'll get through all of the alphabet letters up until it can infer what your password is. And so I tin can infer information about your countersign by querying things. I can infer information nearly encryption keys you have on the device, I tin can infer information well-nigh everything that goes into that enshroud.

This type of attack is slower than some methods but can be used in situations in which an assaulter has a long time.

BitDefender discovered the vulnerability and revealed it at a Black Hat session recently. Black Chapeau worked with Intel, Microsoft, and others to create the set that rolled out as part of Patch Tuesday in July.

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