Backdoor in Qnap storage devices
Published:		21.09.2009
Source:		BUGTRAQ
SecurityVulns ID:		10251
Type:		remote
Level:		6/10
Description:		During encryption additional encryptiuon key is created and stored in device flash memory.

Affected:		QNAP : TS-239 Pro
		QNAP : TS-639 Pro
CVE:		CVE-2009-3200 (The QNAP TS-239 Pro and TS-639 Pro with firmware 2.1.7 0613, 3.1.0 0627, and 3.1.1 0815 create an undocumented recovery key and store it in the ENCK variable in flash memory, which allows local users to bypass the passphrase requirement and decrypt the hard drive by reading this variable, deobfuscating the key, and running a cryptsetup luksOpen command.)

Original document

Marc Heuse, Advisory: Crypto backdoor in Qnap storage devices (CVE-2009-3200) (21.09.2009)

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