this post was submitted on 01 Dec 2023
70 points (96.1% liked)

Cybersecurity

5650 readers
200 users here now

c/cybersecurity is a community centered on the cybersecurity and information security profession. You can come here to discuss news, post something interesting, or just chat with others.

THE RULES

Instance Rules

Community Rules

If you ask someone to hack your "friends" socials you're just going to get banned so don't do that.

Learn about hacking

Hack the Box

Try Hack Me

Pico Capture the flag

Other security-related communities [email protected] [email protected] [email protected] [email protected] [email protected] [email protected] [email protected]

Notable mention to [email protected]

founded 1 year ago
MODERATORS
 

Security researchers have discovered new Bluetooth security flaws that allow hackers to impersonate devices and perform man-in-the-middle attacks.

The vulnerabilities impact all devices with Bluetooth 4.2 through Bluetooth 5.4, including laptops, PCs, smartphones, tablets, and others.

Users can do nothing at the moment to fix the vulnerabilities, and the solution requires device manufacturers to make changes to the security mechanisms used by the technology.

Research paper: https://dl.acm.org/doi/pdf/10.1145/3576915.3623066

Github: https://github.com/francozappa/bluffs

CVE: https://nvd.nist.gov/vuln/detail/CVE-2023-24023

top 5 comments
sorted by: hot top controversial new old
[–] [email protected] 14 points 11 months ago (1 children)

As someone who's relatively tech illiterate, this simply means that a bad actor can see what information is being shared via Bluetooth, right? Like, if I connect to a pair of headphones, they could only receive whatever information my phone sends to the headphones and whatever information the headphones send back?

[–] [email protected] 17 points 11 months ago

It means they can impersonate the Bluetooth device connected. Input devices are particularly concerning (keyboards and mice) as well as BT IoT devices which already historically lack good security controls. A lot of vehicles have Bluetooth integrated as well these days.

[–] [email protected] 8 points 11 months ago* (last edited 11 months ago) (1 children)

Welp, time to stop using bluetooth.

[–] [email protected] 5 points 11 months ago

The lady in my ear just told me that “Bluetooth Disconnected,” but she knows I’ll be back soon.

[–] [email protected] 2 points 11 months ago

Looks like a complex attack, so presumably the public is probably fine in practice. That said, I'll probably hold off on buying new BT devices until this is fixed.