Vulnerability Monitor

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CVE-2009-3278

The QNAP TS-239 Pro and TS-639 Pro with firmware 2.1.7 0613, 3.1.0 0627, and 3.1.1 0815 use the rand library function to generate a certain recovery key, which makes it easier for local users to determine this key via a brute-force attack.

Security Impact Summary

This vulnerability carries a MEDIUM severity rating with a CVSS v3.1 score of 5.5, requiring local system access to exploit with relatively low complexity without requiring user interaction requiring only low-level privileges . The vulnerability impacts confidentiality (data exposure), for affected systems. Impacting 4 products from qnap, from qnap, from qnap and 1 other, organizations running these solutions should prioritize assessment and patching.

Historical Context

Originally identified in 2009, this vulnerability predates many modern security frameworks and practices. The vulnerability landscape of that era was characterized by different threat models and less mature defense mechanisms compared to contemporary standards.

Published

2009-09-21T19:30:00.610

Last Modified

2025-04-09T00:30:58.490

Status

Deferred

Source

[email protected]

Severity

CVSSv3.1: 5.5 (MEDIUM)

CVSSv2 Vector

AV:L/AC:L/Au:N/C:C/I:N/A:N

Access Vector: LOCAL
Access Complexity: LOW
Authentication: NONE
Confidentiality Impact: COMPLETE
Integrity Impact: NONE
Availability Impact: NONE

Exploitability Score

3.9

Impact Score

6.9

Weaknesses

Type: Primary
CWE-338

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Operating System	qnap	ts-239_pro_firmware	2.1.7	Yes
Operating System	qnap	ts-239_pro_firmware	3.1.0	Yes
Operating System	qnap	ts-239_pro_firmware	3.1.1	Yes
Hardware	qnap	ts-239_pro	-	No
Operating System	qnap	ts-639_pro_firmware	2.1.7	Yes
Operating System	qnap	ts-639_pro_firmware	3.1.0	Yes
Operating System	qnap	ts-639_pro_firmware	3.1.1	Yes
Hardware	qnap	ts-639_pro	-	No

References

http://secunia.com/advisories/36793 Broken Link ([email protected])
http://www.baseline-security.de/downloads/BSC-Qnap_Crypto_Backdoor-CVE-2009-3200.txt Exploit ([email protected])
http://www.securityfocus.com/archive/1/506607/100/0/threaded Broken Link, Third Party Advisory, VDB Entry ([email protected])
http://www.securityfocus.com/bid/36467 Broken Link, Third Party Advisory, VDB Entry ([email protected])
http://secunia.com/advisories/36793 Broken Link (af854a3a-2127-422b-91ae-364da2661108)
http://www.baseline-security.de/downloads/BSC-Qnap_Crypto_Backdoor-CVE-2009-3200.txt Exploit (af854a3a-2127-422b-91ae-364da2661108)
http://www.securityfocus.com/archive/1/506607/100/0/threaded Broken Link, Third Party Advisory, VDB Entry (af854a3a-2127-422b-91ae-364da2661108)
http://www.securityfocus.com/bid/36467 Broken Link, Third Party Advisory, VDB Entry (af854a3a-2127-422b-91ae-364da2661108)

How SecUtils Interprets This CVE

SecUtils normalizes and enriches National Vulnerability Database (NVD) records by standardizing vendor and product identifiers, aggregating vulnerability metadata from both NVD and MITRE sources, and providing structured context for security teams. For qnap's affected products, we extract Common Platform Enumeration (CPE) data, Common Weakness Enumeration (CWE) classifications, CVSS severity metrics, and reference data to enable rapid vulnerability prioritization and asset correlation. This record contains no exploit code, proof-of-concept instructions, or attack methodologies—only defensive intelligence necessary for patch management, risk assessment, and security operations.