CVE-2021-28807

A post-authentication reflected XSS vulnerability has been reported to affect QNAP NAS running Q’center. If exploited, this vulnerability allows remote attackers to inject malicious code. QNAP have already fixed this vulnerability in the following versions of Q’center: QTS 4.5.3: Q’center v1.12.1012 and later QTS 4.3.6: Q’center v1.10.1004 and later QTS 4.3.3: Q’center v1.10.1004 and later QuTS hero h4.5.2: Q’center v1.12.1012 and later QuTScloud c4.5.4: Q’center v1.12.1012 and later

CVSS v3.0 5.4 MEDIUM
CVSS v2.0 3.5 LOW

5.4^/10

CVSS v3.0 : MEDIUM

Vector :

Exploitability : 2.3 / Impact : 2.7

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction REQUIRED

Confidentiality Impact LOW

Integrity Impact LOW

Availability Impact NONE

Scope CHANGED

3.5^/10

CVSS v2.0 : LOW

Vector : AV:N/AC:M/Au:S/C:N/I:P/A:N

Exploitability : 6.8 / Impact : 2.9

Access Vector NETWORK

Access Complexity MEDIUM

Authentication SINGLE

Confidentiality Impact NONE

Integrity Impact PARTIAL

Availability Impact NONE

References

Link	Resource
https://www.qnap.com/zh-tw/security-advisory/qsa-21-20	Vendor Advisory
https://www.shielder.it/advisories/qnap-qcenter-virtual-stored-xss/	Exploit Third Party Advisory
https://www.shielder.it/advisories/qnap-qcenter-post-auth-remote-code-execution-via-qpkg/	Exploit Third Party Advisory

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Configurations

Configuration 1 (hide)

AND

cpe:2.3:a:qnap:q\'center:*:*:*:*:*:*:*:*

cpe:2.3:o:qnap:qts:4.5.3:*:*:*:*:*:*:*

Configuration 2 (hide)

AND

cpe:2.3:a:qnap:q\'center:*:*:*:*:*:*:*:*

cpe:2.3:o:qnap:qts:4.3.3:*:*:*:*:*:*:*

Configuration 3 (hide)

AND

cpe:2.3:a:qnap:q\'center:*:*:*:*:*:*:*:*

cpe:2.3:o:qnap:qts:4.3.6:*:*:*:*:*:*:*

Configuration 4 (hide)

AND

cpe:2.3:a:qnap:q\'center:*:*:*:*:*:*:*:*

cpe:2.3:o:qnap:quts_hero:h4.5.2:*:*:*:*:*:*:*

Configuration 5 (hide)

AND

cpe:2.3:a:qnap:q\'center:*:*:*:*:*:*:*:*

cpe:2.3:o:qnap:qutscloud:c4.5.4:*:*:*:*:*:*:*

Information

Published : 2021-06-02 20:15

Updated : 2021-09-14 07:30

NVD link : CVE-2021-28807

Mitre link : CVE-2021-28807

JSON object : View

CWE

CWE-79

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

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Products Affected

qnap

qts
quts_hero
q\'center
qutscloud

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