The QNAP TS-239 Pro and TS-639 Pro with firmware 2.1.7...
Vulnerability Description
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.
Impact Analysis
Refer to official advisory for detailed impact metrics.
Remediation
Ensure systems are updated to the latest vendor-supplied patch levels.
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Credits & Attribution
No credits recorded in the NVD database.
References
- http://www.baseline-security.de/downloads/BSC-Qnap_Crypto_Backdoor-CVE-2009-3200.txt
- http://secunia.com/advisories/36793
- http://forum.qnap.com/viewtopic.php?f=12&t=12104&start=10#p63341
- http://forum.qnap.com/viewtopic.php?f=11&t=11214&start=20#p63346
- https://exchange.xforce.ibmcloud.com/vulnerabilities/53391
- http://www.securityfocus.com/archive/1/506607/100/0/threaded
- http://www.securityfocus.com/bid/36467
- http://www.securitytracker.com/id?1022916
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CVSS Vectors
Weaknesses (CWE)
No CWE data available
MITRE ATT&CK TTPs
No associated TTPs found for this vulnerability.