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CVE

CVE-2023-34971

An inadequate encryption strength vulnerability has been reported to affect QNAP operating systems. If exploited, the vu

An inadequate encryption strength vulnerability has been reported to affect QNAP operating systems. If exploited, the vulnerability possibly allows local network clients to decrypt the data using brute force attacks via unspecified vectors. We have already fixed the vulnerability in the following versions: QTS 5.0.1.2425 build 20230609 and later QTS 5.1.0.2444 build 20230629 and later QTS 4.5.4.2467 build 20230718 and later QuTS hero h5.1.0.2424 build 20230609 and later QuTS hero h4.5.4.2476 build 20230728 and later.

HIGH · CVSS 7.1 EPSS 0.00044
Schedule remediation
  • CVSS base score ≥ 7.0
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-326Inadequate Encryption Strength
CWE-326Inadequate Encryption Strength
▤

Affected Products & Versions

5
qnap qts>= 4.5.4 and < 4.5.4.2467
qnap qts>= 5.0.1 and < 5.0.1.2425
qnap qts>= 5.1.0 and < 5.1.0.2444
qnap quts hero>= h4.5.4 and < h4.5.4.2476
qnap quts hero>= h5.1.0 and < h5.1.0.2424
▣

Scoring & Timeline

7.1
HIGH · CVSS v3.1 · security@qnapsecurity.com.tw
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD24 Aug 2023 · 05:15 PM
CVSS VectorCVSS:3.1/AV:A/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
SSVC triage · cisa-vulnrichment
Exploitation
none
Automatable
no
Technical impact
total
SSVC asks the questions that actually drive patch urgency: is it being exploited, can attacks be automated, and how total is the impact.
🔗

References & Sources

1
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://www.qnap.com/en/security-advisory/qsa-23-60Vendor Advisory
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