CVE-2021-28809
QNAP HBS 3 Operating System Improper Access Control Vulnerability
Description
An improper access control vulnerability has been reported to affect certain legacy versions of HBS 3. If exploited, this vulnerability allows attackers to compromise the security of the operating system.QNAP have already fixed this vulnerability in the following versions of HBS 3: QTS 4.3.6: HBS 3 v3.0.210507 and later QTS 4.3.4: HBS 3 v3.0.210506 and later QTS 4.3.3: HBS 3 v3.0.210506 and later
INFO
Published Date :
July 8, 2021, 8:15 a.m.
Last Modified :
July 12, 2021, 4:37 p.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
5.9
Exploitability Score :
3.9
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-2021-28809.
| URL | Resource |
|---|---|
| https://www.qnap.com/en/security-advisory/qsa-21-19 | Vendor Advisory |
| https://www.zerodayinitiative.com/advisories/ZDI-21-783/ | Third Party Advisory VDB Entry |
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).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2021-28809 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2021-28809 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 -
Initial Analysis by [email protected]
Jul. 12, 2021
Action Type Old Value New Value Added CVSS V2 NIST (AV:N/AC:L/Au:N/C:C/I:C/A:C) Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Changed Reference Type https://www.qnap.com/en/security-advisory/qsa-21-19 No Types Assigned https://www.qnap.com/en/security-advisory/qsa-21-19 Vendor Advisory Changed Reference Type https://www.zerodayinitiative.com/advisories/ZDI-21-783/ No Types Assigned https://www.zerodayinitiative.com/advisories/ZDI-21-783/ Third Party Advisory, VDB Entry Added CPE Configuration AND OR *cpe:2.3:a:qnap:hybrid_backup_sync:*:*:*:*:*:*:*:* versions up to (excluding) 3.0.210507 OR cpe:2.3:o:qnap:qts:4.3.6:-:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:a:qnap:hybrid_backup_sync:*:*:*:*:*:*:*:* versions up to (excluding) 3.0.210506 OR cpe:2.3:o:qnap:qts:4.3.4:-:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:a:qnap:hybrid_backup_sync:*:*:*:*:*:*:*:* versions up to (excluding) 3.0.210506 OR cpe:2.3:o:qnap:qts:4.3.3:-:*:*:*:*:*:* -
CVE Modified by [email protected]
Jul. 08, 2021
Action Type Old Value New Value Added Reference https://www.zerodayinitiative.com/advisories/ZDI-21-783/ [No Types Assigned]
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2021-28809 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-2021-28809
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.58 }} -0.03%
score
0.77397
percentile