IF YOU USE A LEDGER HARDWARE WALLET, DO NOT IGNORE THIS SECURITY WARNING ๐จ๐๐
The biggest rule in hardware wallets is simple: what you see on your physical screen is what you sign ๐ก๏ธ๐ฑ
If your device shows you are sending $10, you expect to sign only that $10 payment. But security researchers just proved a dangerous bug that breaks that exact promise โ ๏ธ๐ธ
What The Researchers Proved ๐ฌ๐ฅ
Security team OneKey successfully reproduced an attack against the Ledger Ethereum app version 1.22.1 in their lab. An attacker can overwrite a transaction in device memory while you are still reading a genuine one on your screen ๐ฅ๏ธ๐
How The Attack Works In Simple Steps ๐โ๏ธ
The issue is a race condition (a timing bug between the screen display and the memory buffer): โฑ๏ธ๐ง
1๏ธโฃ You start a normal transaction (Transaction A) on your computer ๐ป
2๏ธโฃ Your Ledger screen displays Transaction A for you to check ๐ฑ๐
3๏ธโฃ While you review the screen, a script sends Transaction B into memory โก๐ต๏ธ
4๏ธโฃ The memory gets overwritten with Transaction B, but your screen still shows Transaction A ๐๐
5๏ธโฃ You press the physical buttons to approve, and your device signs Transaction B โ๏ธ๐ฑ
Current Status And The Fix ๐ ๏ธโ
Ledger confirmed the issue was resolved in Ethereum app versions 1.22.2 and 1.22.3. No user funds were stolen in the wild, but older versions remain vulnerable ๐ก๏ธ๐ข
If you use a Ledger device, open Ledger Live and update your Ethereum app to version 1.22.3 or newer immediately ๐๐
Have you updated your Ledger Ethereum app yet? ๐
#Ledger #CryptoSecurity #HardwareWallet #Ethereum #BฤฐNANCE
The biggest rule in hardware wallets is simple: what you see on your physical screen is what you sign ๐ก๏ธ๐ฑ
If your device shows you are sending $10, you expect to sign only that $10 payment. But security researchers just proved a dangerous bug that breaks that exact promise โ ๏ธ๐ธ
What The Researchers Proved ๐ฌ๐ฅ
Security team OneKey successfully reproduced an attack against the Ledger Ethereum app version 1.22.1 in their lab. An attacker can overwrite a transaction in device memory while you are still reading a genuine one on your screen ๐ฅ๏ธ๐
How The Attack Works In Simple Steps ๐โ๏ธ
The issue is a race condition (a timing bug between the screen display and the memory buffer): โฑ๏ธ๐ง
1๏ธโฃ You start a normal transaction (Transaction A) on your computer ๐ป
2๏ธโฃ Your Ledger screen displays Transaction A for you to check ๐ฑ๐
3๏ธโฃ While you review the screen, a script sends Transaction B into memory โก๐ต๏ธ
4๏ธโฃ The memory gets overwritten with Transaction B, but your screen still shows Transaction A ๐๐
5๏ธโฃ You press the physical buttons to approve, and your device signs Transaction B โ๏ธ๐ฑ
Current Status And The Fix ๐ ๏ธโ
Ledger confirmed the issue was resolved in Ethereum app versions 1.22.2 and 1.22.3. No user funds were stolen in the wild, but older versions remain vulnerable ๐ก๏ธ๐ข
If you use a Ledger device, open Ledger Live and update your Ethereum app to version 1.22.3 or newer immediately ๐๐
Have you updated your Ledger Ethereum app yet? ๐
#Ledger #CryptoSecurity #HardwareWallet #Ethereum #BฤฐNANCE
