PACMAN attacked Apple M1 chips | TechBuzz

- Advertisement -

Researchers from MIT’s Laboratory for Computer Science and Artificial Intelligence have found a hardware vulnerability in Apple M1 chips. The vulnerability lies in the pointer authentication code or PAC (Pointer Authentication Code) used in Apple M1 chips.

As MacWorld explains: Pointer authentication is a security feature that helps protect the CPU from an attacker who has gained memory access. Pointers store memory addresses, and Pointer Authentication Code (PAC) checks for unexpected pointer changes caused by an attack.


- Advertisement -

Researchers from MIT have created an attack called PACMAN, which combines memory damage and speculative execution attacks to circumvent the security that Apple has imposed on these chips. Moreover, the whole thing leaves no traces, and an even more interesting detail is the fact that due to the use of a hardware mechanism, no software patch can fix it.

It is even possible to take control of the operating system kernel – which has “huge implications for future security work on all ARM systems with pointer authentication enabled,” says Joseph Ravichandran, a doctoral student at MIT CSAIL and co-author of the paper.

“The idea behind pointer authentication is that if all else fails, you can still rely on it to prevent attackers from taking control of your system,” Ravichandran added. “We have shown that pointer authentication as the last line of defense is not as absolute as we once thought it was.”

- Advertisement -

It is dangerous that the vulnerability could affect other ARM systems, so the M2 chip could be affected, but researchers have not yet confirmed this. Researchers have reported everything to Apple.

READ  Xbox Insiders are testing ray tracing in Minecraft | TechBuzz

Writes: Marijan Zivkovic

Source link

- Advertisement -
I am admin of blog & I provide tech-related news. As a part of my hobby, I make content related to technology and gadgets reviews too. I love to be a content creator apart from it, I am a full-time employee in an MNC company and manage blogs systematically. You can mail me at [email protected]

More from author

Related posts


Latest posts

HBO Max stops its original productions in many European countries | TechBuzz

HBO Max is ceasing most of its original productions in Europe. The service continues the adventure only in Spain and France. HBO...

Kingsman 3: start of filming in 2023? | TechBuzz

Director Matthew Vaughn's third Kingsman movie is set to conclude the story arc of character Gary "Eggsy" Unwin, aka Galahad, played by Taron Egerton....

Want to stay up to date with the latest news?

We would love to hear from you! Please fill in your details and we will stay in touch. It's that simple!