CVE-2021-28807
QNAP Q'center Reflected XSS Vulnerability
Description
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
INFO
Published Date :
June 3, 2021, 3:15 a.m.
Last Modified :
Sept. 14, 2021, 2:30 p.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
4.0
Exploitability Score :
3.1
Public PoC/Exploit Available at Github
CVE-2021-28807 has a 1 public PoC/Exploit available at Github.
Go to the Public Exploits tab to see the list.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2021-28807.
| URL | Resource |
|---|---|
| https://www.qnap.com/zh-tw/security-advisory/qsa-21-20 | Vendor Advisory |
| https://www.shielder.it/advisories/qnap-qcenter-post-auth-remote-code-execution-via-qpkg/ | Exploit Third Party Advisory |
| https://www.shielder.it/advisories/qnap-qcenter-virtual-stored-xss/ | Exploit Third Party Advisory |
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Shielder's public proof of concepts collection
Python
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2021-28807 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2021-28807 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
Modified Analysis by [email protected]
Sep. 14, 2021
Action Type Old Value New Value Changed Reference Type https://www.shielder.it/advisories/qnap-qcenter-post-auth-remote-code-execution-via-qpkg/ No Types Assigned https://www.shielder.it/advisories/qnap-qcenter-post-auth-remote-code-execution-via-qpkg/ Exploit, Third Party Advisory Changed Reference Type https://www.shielder.it/advisories/qnap-qcenter-virtual-stored-xss/ No Types Assigned https://www.shielder.it/advisories/qnap-qcenter-virtual-stored-xss/ Exploit, Third Party Advisory -
CVE Modified by [email protected]
Jul. 16, 2021
Action Type Old Value New Value Added Reference https://www.shielder.it/advisories/qnap-qcenter-virtual-stored-xss/ [No Types Assigned] Added Reference https://www.shielder.it/advisories/qnap-qcenter-post-auth-remote-code-execution-via-qpkg/ [No Types Assigned] -
Initial Analysis by [email protected]
Jun. 11, 2021
Action Type Old Value New Value Added CVSS V2 Metadata Victim must voluntarily interact with attack mechanism Added CVSS V2 NIST (AV:N/AC:M/Au:S/C:N/I:P/A:N) Added CVSS V3.1 NIST AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N Changed Reference Type https://www.qnap.com/zh-tw/security-advisory/qsa-21-20 No Types Assigned https://www.qnap.com/zh-tw/security-advisory/qsa-21-20 Vendor Advisory Added CPE Configuration AND OR *cpe:2.3:a:qnap:q\'center:*:*:*:*:*:*:*:* versions up to (excluding) 1.12.1012 OR cpe:2.3:o:qnap:qts:4.5.3:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:a:qnap:q\'center:*:*:*:*:*:*:*:* versions up to (excluding) 1.10.1004 OR cpe:2.3:o:qnap:qts:4.3.3:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:a:qnap:q\'center:*:*:*:*:*:*:*:* versions up to (excluding) 1.10.1004 OR cpe:2.3:o:qnap:qts:4.3.6:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:a:qnap:q\'center:*:*:*:*:*:*:*:* versions up to (excluding) 1.12.1012 OR cpe:2.3:o:qnap:quts_hero:h4.5.2:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:a:qnap:q\'center:*:*:*:*:*:*:*:* versions up to (excluding) 1.12.1012 OR cpe:2.3:o:qnap:qutscloud:c4.5.4:*:*:*:*:*:*:*
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2021-28807 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2021-28807
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.08 }} 0.00%
score
0.31110
percentile