CVE-2023-35391
Microsoft ASP.NET Core SignalR Cross-Site Scripting (XSS) Disclosure
Description
ASP.NET Core SignalR and Visual Studio Information Disclosure Vulnerability
INFO
Published Date :
Aug. 8, 2023, 7:15 p.m.
Last Modified :
Nov. 21, 2024, 8:08 a.m.
Remotely Exploit :
Yes !
Source :
[email protected]
Affected Products
The following products are affected by CVE-2023-35391
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.
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | MEDIUM | [email protected] | ||||
| CVSS 3.1 | HIGH | [email protected] |
Solution
- Update .NET Core.
- Update Visual Studio 2022 to the latest version.
- Remove vulnerable packages.
Public PoC/Exploit Available at Github
CVE-2023-35391 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-2023-35391.
| URL | Resource |
|---|---|
| https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-35391 | Patch Vendor Advisory |
| https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-35391 | Patch Vendor Advisory |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2023-35391 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-2023-35391
weaknesses.
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).
Build a CVE library with aggregated CISA, EPSS and CVSS data
cisa cisa-kev cve cve-search cves cvss cvss2 cvss3 cvssv2 cvssv3 epss vulnerabilities vulnerability-assessment vulnerability-management no-dependencies nodependence
JavaScript
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2023-35391 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2023-35391 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 af854a3a-2127-422b-91ae-364da2661108
Nov. 21, 2024
Action Type Old Value New Value Added Reference https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-35391 -
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
CVE Modified by [email protected]
Nov. 06, 2023
Action Type Old Value New Value Removed CVSS V3.1 Microsoft Corporation AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N Added CVSS V3.1 Microsoft Corporation AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N Removed CVSS V3.1 Reason AV-Lack of information Removed CVSS V3.1 Reason I-No integrity impacts identified Removed CVSS V3.1 Reason PR-No privileges needed -
Reanalysis by [email protected]
Aug. 24, 2023
Action Type Old Value New Value Changed CPE Configuration OR *cpe:2.3:a:microsoft:.net:*:*:*:*:*:*:*:* versions from (including) 6.0.0 up to (including) 6.0.21 *cpe:2.3:a:microsoft:.net:*:*:*:*:*:*:*:* versions from (including) 7.0.0 up to (including) 7.0.10 *cpe:2.3:a:microsoft:asp.net_core:2.1:*:*:*:*:*:*:* *cpe:2.3:a:microsoft:visual_studio_2022:*:*:*:*:*:*:*:* versions from (including) 17.2.0 up to (excluding) 17.2.18 *cpe:2.3:a:microsoft:visual_studio_2022:*:*:*:*:*:*:*:* versions from (including) 17.4.0 up to (excluding) 17.4.10 *cpe:2.3:a:microsoft:visual_studio_2022:*:*:*:*:*:*:*:* versions from (including) 17.6.0 up to (excluding) 17.6.6 OR *cpe:2.3:a:microsoft:.net:*:*:*:*:*:*:*:* versions from (including) 6.0.0 up to (excluding) 6.0.21 *cpe:2.3:a:microsoft:.net:*:*:*:*:*:*:*:* versions from (including) 7.0.0 up to (excluding) 7.0.10 *cpe:2.3:a:microsoft:asp.net_core:*:*:*:*:*:*:*:* versions from (including) 2.1 up to (excluding) 2.1.40 *cpe:2.3:a:microsoft:visual_studio_2022:*:*:*:*:*:*:*:* versions from (including) 17.2.0 up to (excluding) 17.2.18 *cpe:2.3:a:microsoft:visual_studio_2022:*:*:*:*:*:*:*:* versions from (including) 17.4.0 up to (excluding) 17.4.10 *cpe:2.3:a:microsoft:visual_studio_2022:*:*:*:*:*:*:*:* versions from (including) 17.6.0 up to (excluding) 17.6.6 -
Initial Analysis by [email protected]
Aug. 11, 2023
Action Type Old Value New Value Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N Changed Reference Type https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-35391 No Types Assigned https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-35391 Patch, Vendor Advisory Added CWE NIST NVD-CWE-noinfo Added CPE Configuration OR *cpe:2.3:a:microsoft:.net:*:*:*:*:*:*:*:* versions from (including) 6.0.0 up to (including) 6.0.21 *cpe:2.3:a:microsoft:.net:*:*:*:*:*:*:*:* versions from (including) 7.0.0 up to (including) 7.0.10 *cpe:2.3:a:microsoft:asp.net_core:2.1:*:*:*:*:*:*:* *cpe:2.3:a:microsoft:visual_studio_2022:*:*:*:*:*:*:*:* versions from (including) 17.2.0 up to (excluding) 17.2.18 *cpe:2.3:a:microsoft:visual_studio_2022:*:*:*:*:*:*:*:* versions from (including) 17.4.0 up to (excluding) 17.4.10 *cpe:2.3:a:microsoft:visual_studio_2022:*:*:*:*:*:*:*:* versions from (including) 17.6.0 up to (excluding) 17.6.6
Vulnerability Scoring Details
Base CVSS Score: 7.5
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
2.24 }} 0.15%
score
0.83868
percentile