Vulnerability-Lookup

CNVD-2021-31949

Vulnerability from cnvd - Published: 2021-04-30

Title

Qnap Systems QNAP HBS 3授权问题漏洞

Description

Qnap Systems QNAP HBS 3是中国威联通（Qnap Systems）公司的一个应用系统。一种全面的数据备份和灾难恢复解决方案。 HBS 3 Hybrid Backup Sync存在授权问题漏洞，该漏洞源于未能充分的授权检查。攻击者可利用该漏洞可以绕过授权检查，直接登录设备。

Severity

高

Patch Name

Qnap Systems QNAP HBS 3授权问题漏洞的补丁

Patch Description

Qnap Systems QNAP HBS 3是中国威联通（Qnap Systems）公司的一个应用系统。一种全面的数据备份和灾难恢复解决方案。 HBS 3 Hybrid Backup Sync存在授权问题漏洞，该漏洞源于未能充分的授权检查。攻击者可利用该漏洞可以绕过授权检查，直接登录设备。目前，供应商发布了安全公告及相关补丁信息，修复了此漏洞。

Formal description

目前厂商已发布升级补丁以修复漏洞，补丁获取链接： https://www.qnap.com/en/security-advisory/QSA-21-13

Reference

https://www.cybersecurity-help.cz/vdb/SB2021042329

Impacted products

Name
QNAP Systems HBS 3 Hybrid Backup Sync

Show details on source website

JSON

To clipboard

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    "cve": {
      "cveNumber": "CVE-2021-28799"
    }
  },
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  "number": "CNVD-2021-31949",
  "openTime": "2021-04-30",
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  "referenceLink": "https://www.cybersecurity-help.cz/vdb/SB2021042329",
  "serverity": "\u9ad8",
  "submitTime": "2021-04-26",
  "title": "Qnap Systems QNAP HBS 3\u6388\u6743\u95ee\u9898\u6f0f\u6d1e"
}

CVE-2021-28799 (GCVE-0-2021-28799)

Vulnerability from cvelistv5 – Published: 2021-05-13 02:55 – Updated: 2025-10-21 23:25

Title

Improper Authorization Vulnerability in HBS 3 (Hybrid Backup Sync)

Summary

An improper authorization vulnerability has been reported to affect QNAP NAS running HBS 3 (Hybrid Backup Sync. ) If exploited, the vulnerability allows remote attackers to log in to a device. This issue affects: QNAP Systems Inc. HBS 3 versions prior to v16.0.0415 on QTS 4.5.2; versions prior to v3.0.210412 on QTS 4.3.6; versions prior to v3.0.210411 on QTS 4.3.4; versions prior to v3.0.210411 on QTS 4.3.3; versions prior to v16.0.0419 on QuTS hero h4.5.1; versions prior to v16.0.0419 on QuTScloud c4.5.1~c4.5.4. This issue does not affect: QNAP Systems Inc. HBS 2 . QNAP Systems Inc. HBS 1.3 .

Severity

10 (Critical)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

SSVC

Exploitation: active Automatable: yes Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2025-02-04 14:53 UTC

CWE

CWE-285 - Improper Authorization

Assigner

qnap mitre root

References

2 references

URL	Tags
https://www.qnap.com/en/security-advisory/QSA-21-13	x_refsource_MISC
https://www.cisa.gov/known-exploited-vulnerabilit…	government-resource

Impacted products

6 products

Vendor	Product	Version
QNAP Systems Inc.	HBS 3	Affected: unspecified , < v16.0.0415 (custom)
QNAP Systems Inc.	HBS 3	Affected: unspecified , < v3.0.210412 (custom)
QNAP Systems Inc.	HBS 3	Affected: unspecified , < v3.0.210411 (custom)
QNAP Systems Inc.	HBS 3	Affected: unspecified , < v16.0.0419 (custom)
QNAP Systems Inc.	HBS 2	Unaffected: all versions
QNAP Systems Inc.	HBS 1.3	Unaffected: all versions

Date Public

2021-04-22 00:00

Credits

ZUSO ART

Show details on NVD website

JSON

To clipboard

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Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

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CNVD-2021-31949

CVE-2021-28799 (GCVE-0-2021-28799)

Tags

Sightings

Nomenclature

Related by attack behaviour