9.8
CRITICAL
CVE-2023-39303
QNAP QTS/QuTS/QuTScloud Authentication Bypass
Description

An improper authentication vulnerability has been reported to affect several QNAP operating system versions. If exploited, the vulnerability could allow users to compromise the security of the system via a network. We have already fixed the vulnerability in the following versions: QTS 5.1.3.2578 build 20231110 and later QuTS hero h5.1.3.2578 build 20231110 and later QuTScloud c5.1.5.2651 and later

INFO

Published Date :

Feb. 2, 2024, 4:15 p.m.

Last Modified :

Feb. 6, 2024, 7:57 p.m.

Remotely Exploitable :

Yes !

Impact Score :

5.9

Exploitability Score :

3.9
Affected Products

The following products are affected by CVE-2023-39303 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Qnap quts_hero
2 Qnap qts
3 Qnap qutscloud
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-2023-39303.

URL Resource
https://www.qnap.com/en/security-advisory/qsa-23-33 Vendor 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).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2023-39303 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2023-39303 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]

    Feb. 06, 2024

    Action Type Old Value New Value
    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-23-33 No Types Assigned https://www.qnap.com/en/security-advisory/qsa-23-33 Vendor Advisory
    Added CPE Configuration OR *cpe:2.3:o:qnap:qts:5.1.0.2348:build_20230325:*:*:*:*:*:* *cpe:2.3:o:qnap:qts:5.1.0.2399:build_20230515:*:*:*:*:*:* *cpe:2.3:o:qnap:qts:5.1.0.2418:build_20230603:*:*:*:*:*:* *cpe:2.3:o:qnap:qts:5.1.0.2444:build_20230629:*:*:*:*:*:* *cpe:2.3:o:qnap:qts:5.1.0.2466:build_20230721:*:*:*:*:*:* *cpe:2.3:o:qnap:qts:5.1.1.2491:build_20230815:*:*:*:*:*:* *cpe:2.3:o:qnap:qts:5.1.2.2533:build_20230926:*:*:*:*:*:* *cpe:2.3:o:qnap:qts:5.1.3.2578:-:*:*:*:*:*:* *cpe:2.3:o:qnap:quts_hero:h5.1.0.2409:build_20230525:*:*:*:*:*:* *cpe:2.3:o:qnap:quts_hero:h5.1.0.2424:build_20230609:*:*:*:*:*:* *cpe:2.3:o:qnap:quts_hero:h5.1.0.2453:build_20230708:*:*:*:*:*:* *cpe:2.3:o:qnap:quts_hero:h5.1.0.2466:build_20230721:*:*:*:*:*:* *cpe:2.3:o:qnap:quts_hero:h5.1.1.2488:build_20230812:*:*:*:*:*:* *cpe:2.3:o:qnap:quts_hero:h5.1.2.2534:build_20230927:*:*:*:*:*:* *cpe:2.3:o:qnap:quts_hero:h5.1.3.2578:-:*:*:*:*:*:* *cpe:2.3:o:qnap:qutscloud:c5.1.0.2498:build_20230822:*:*:*:*:*:*
  • CVE Received by [email protected]

    Feb. 02, 2024

    Action Type Old Value New Value
    Added Description An improper authentication vulnerability has been reported to affect several QNAP operating system versions. If exploited, the vulnerability could allow users to compromise the security of the system via a network. We have already fixed the vulnerability in the following versions: QTS 5.1.3.2578 build 20231110 and later QuTS hero h5.1.3.2578 build 20231110 and later QuTScloud c5.1.5.2651 and later
    Added Reference QNAP Systems, Inc. https://www.qnap.com/en/security-advisory/qsa-23-33 [No types assigned]
    Added CWE QNAP Systems, Inc. CWE-287
    Added CVSS V3.1 QNAP Systems, Inc. AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2023-39303 is associated with the following CWEs:

Exploit Prediction

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.

0.09 }} 0.00%

score

0.37308

percentile

CVSS31 - Vulnerability Scoring System
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability