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Bug no TPM de vários Chromebooks, e para resolver tem que apagar tudo do computador

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chromebooks

Nada nesse mundo é 100% seguro, incluindo os Chromebooks. Muitos modelos desses notebooks usam um Trusted Platform Module (TPM), que gera as chaves de encriptação para proteção dos dados locais. E, por incrível que pareça, é aí que reside o mais recente problema do sistema operacional da Google.

Pesquisadores de segurança descobriram um bug em algumas versões do firmware do Infineon TPM, o que permite que usuários mal intencionados obtenham dados encriptados dos Chromebooks. O ataque é limitado, pois levaria aproximadamente 140 anos para que uma única chave fosse quebrada.

A lista de Chromebooks afetados incluem basicamente todos os modelos que usam o chip Infineon TPM mais recente. A seguir, a lista completa:

asuka – Dell Chromebook 13 3380
auron-paine – Acer Chromebook 11 (C740)
auron-yuna – Acer Chromebook 15 (CB5-571)
banjo – Acer Chromebook 15 (CB3-531)
banon – Acer Chromebook 15 (CB3-532)
buddy – Acer Chromebase 24
candy – Dell Chromebook 11 (3120)
caroline – Samsung Chromebook Pro
cave – ASUS Chromebook Flip C302
celes – Samsung Chromebook 3
chell – HP Chromebook 13 G1
clapper – Lenovo N20 Chromebook
cyan – Acer Chromebook R11 (CB5-132T / C738T)
daisy-skate – HP Chromebook 11 2000-2099 / HP Chromebook 11 G2
daisy-spring – HP Chromebook 11 1100-1199 / HP Chromebook 11 G1
edgar – Acer Chromebook 14 (CB3-431)
elm – Acer Chromebook R13 (CB5-312T)
enguarde – ASI Chromebook
enguarde – Crambo Chromebook
enguarde – CTL N6 Education Chromebook
enguarde – Education Chromebook
enguarde – eduGear Chromebook R
enguarde – Edxis Education Chromebook
enguarde – JP Sa Couto Chromebook
enguarde – Lenovo N21 Chromebook
enguarde – M&A Chromebook
enguarde – RGS Education Chromebook
enguarde – Senkatel C1101 Chromebook
enguarde – True IDC Chromebook
enguarde – Videonet Chromebook
expresso – Bobicus Chromebook 11
expresso – Consumer Chromebook
expresso – Edxis Chromebook
expresso – HEXA Chromebook Pi
falco – HP Chromebook 14
gandof – Toshiba Chromebook 2 (2015 Edition)
glimmer – Lenovo ThinkPad 11e Chromebook
gnawty – Acer Chromebook 11 (C730 / C730E)
gnawty – Acer Chromebook 11 (C735)
guado – ASUS Chromebox CN62
hana – Lenovo N23 Yoga/Flex 11 Chromebook
hana – Poin2 Chromebook 14heli – Haier Chromebook 11 G2
kefka – Dell Chromebook 11 Model 3180
kefka – Dell Chromebook 11 3189
kevin – Samsung Chromebook Plus
kip – HP Chromebook 11 2100-2199 / HP Chromebook 11 G3
kip – HP Chromebook 11 2200-2299 / HP Chromebook 11 G4/G4 EE
kip – HP Chromebook 14 ak000-099 / HP Chromebook 14 G4
lars – Acer Chromebook 11 (C771, C771T)
lars – Acer Chromebook 14 for work (CP5-471)
leon – Toshiba Chromebook
link – Google Chromebook Pixel
lulu – Dell Chromebook 13 7310
mccloud – Acer Chromebox
monroe – LG Chromebase 22CB25S
monroe – LG Chromebase 22CV241
ninja – AOPEN Chromebox Commercial
nyan-big – Acer Chromebook 13 (CB5-311)
nyan-blaze – HP Chromebook 14 x000-x999 / HP Chromebook 14 G3
nyan-kitty – Acer Chromebase
orco – Lenovo 100S Chromebook
panther – ASUS Chromebox CN60
peach-pi – Samsung Chromebook 2 13″
peach-pit – Samsung Chromebook 2 11″
peppy – Acer C720 Chromebook
quawks – ASUS Chromebook C300
reks – Lenovo N22 (Touch) Chromebook
reks – Lenovo N23 Chromebook
reks – Lenovo N23 Chromebook (Touch)
reks – Lenovo N42 (Touch) Chromebook
relm – Acer Chromebook 11 N7 (C731)
relm – CTL NL61 Chromebook
relm – Edxis Education Chromebook
relm – HP Chromebook 11 G5 EE
relm – Mecer V2 Chromebook
rikku – Acer Chromebox CXI2
samus – Google Chromebook Pixel (2015)
sentry – Lenovo Thinkpad 13 Chromebook
setzer – HP Chromebook 11 G5 / HP Chromebook 11-vxxx
squawks – ASUS Chromebook C200
sumo – AOpen Chromebase Commercial
swanky – Toshiba Chromebook 2
terra – ASUS Chromebook C202SA
terra – ASUS Chromebook C300SA/C301SA
tidus – Lenovo ThinkCentre Chromebox
tricky – Dell Chromebox
ultima – Lenovo ThinkPad 11e Chromebook 3rd Gen (Yoga/Clamshell)
veyron-fievel – AOpen Chromebox Mini
veyron-jaq – Haier Chromebook 11
veyron-jaq – Medion Akoya S2013veyron-jaq – True IDC Chromebook 11
veyron-jaq – Xolo Chromebook
veyron-jerry – CTL J2 / J4 Chromebook for Education
veyron-jerry – eduGear Chromebook K Series
veyron-jerry – Epik 11.6″ Chromebook ELB1101
veyron-jerry – HiSense Chromebook 11
veyron-jerry – Mecer Chromebook
veyron-jerry – NComputing Chromebook CX100
veyron-jerry – Poin2 Chromebook 11
veyron-jerry – Positivo Chromebook CH1190
veyron-jerry – VideoNet Chromebook BL10
veyron-mickey – ASUS Chromebit CS10
veyron-mighty – Chromebook PCM-116E
veyron-mighty – eduGear Chromebook M Series
veyron-mighty – Haier Chromebook 11e
veyron-mighty – Lumos Education Chromebook
veyron-mighty – MEDION Chromebook S2015
veyron-mighty – Nexian Chromebook 11.6-inch
veyron-mighty – Prowise 11.6″ Entry Line Chromebook
veyron-mighty – Sector 5 E1 Rugged Chromebook
veyron-mighty – Viglen Chromebook 11
veyron-minnie – ASUS Chromebook Flip C100PA
veyron-speedy – ASUS Chromebook C201PA
veyron-tiger – AOpen Chromebase Mini
winky – Samsung Chromebook 2 11 – XE500C12
wizpig – CTL J5 Chromebook
wizpig – Edugear CMT Chromebook
wizpig – Haier Convertible Chromebook 11 C
wizpig – PCMerge Chromebook PCM-116T-432B
wizpig – Prowise ProLine Chromebook
wizpig – Viglen Chromebook 360
wolf – Dell Chromebook 11
zako – HP Chromebox CB1-(000-099) / HP Chromebox G1/ HP Chromebox for Meetings

Se você tem um dos modelos acima, verifique o firmware do TPM de seu equipamento, digitando “chrome://system” (sem as aspas) e procurar (CTRL + F) por TPM na página.

As versões de software vulneráveis são as seguintes:

000000000000041f – 4.31
0000000000000420 – 4.32
0000000000000628 – 6.40
0000000000008520 – 133.32

Por conta disso, a atualização do firmware exige a remoção completa de todos os dados, e essa atualização leva aproximadamente um minuto.

Mais informações sobre esse procedimento podem ser encontradas nesse link.


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