CVE-2023-35391
published 2023-08-08CVE-2023-35391: ASP.NET Core SignalR and Visual Studio Information Disclosure Vulnerability
PriorityP340high7.5CVSS 3.1
AVNACLPRNUINSUCHINAN
EPSS
1.94%
77.9th percentile
ASP.NET Core SignalR and Visual Studio Information Disclosure Vulnerability
Affected
18 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| microsoft | asp.net_core | >= 2.1 < 2.1.40 | 2.1.40 |
| microsoft | asp.net_core_2.1 | >= 2.0 < 2.1.40 | 2.1.40 |
| microsoft | microsoft_visual_studio_2022_version_17.2 | >= 17.2.0 < 17.2.18 | 17.2.18 |
| microsoft | microsoft_visual_studio_2022_version_17.4 | >= 17.4.0 < 17.4.10 | 17.4.10 |
| microsoft | microsoft_visual_studio_2022_version_17.6 | >= 17.6.0 < 17.6.6 | 17.6.6 |
| microsoft | net | >= 6.0.0 < 6.0.21 | 6.0.21 |
| microsoft | net | >= 7.0.0 < 7.0.10 | 7.0.10 |
| microsoft | net_6.0 | >= 6.0.0 < 6.0.21 | 6.0.21 |
| microsoft | net_7.0 | >= 7.0.0 < 7.0.10 | 7.0.10 |
| microsoft | visual_studio_2022 | >= 17.2.0 < 17.2.18 | 17.2.18 |
| microsoft | visual_studio_2022 | >= 17.4.0 < 17.4.10 | 17.4.10 |
| microsoft | visual_studio_2022 | >= 17.6.0 < 17.6.6 | 17.6.6 |
| msrc | asp.net_core_2.1 | — | — |
| msrc | microsoft_visual_studio_2022_version_17.2 | — | — |
| msrc | microsoft_visual_studio_2022_version_17.4 | — | — |
| msrc | microsoft_visual_studio_2022_version_17.6 | — | — |
| msrc | net_6.0 | — | — |
| msrc | net_7.0 | — | — |
CVSS provenance
nvdv3.17.5HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
ghsa7.5HIGH
osv7.5HIGH
vendor_msrc6.2MEDIUM
vendor_redhat6.2MEDIUM
Stop checking back — get the weekly exploitation signal.
Every Monday: what got weaponized or added to CISA KEV in the last seven days — each CVE cross-linked to its PoC, Nuclei template, and detection rule. Free, one email a week, unsubscribe in one click.
CISA ICS
Siemens ST7 ScadaConnect
cisa_ics·2024-06-13·CVSS 7.5
[HIGH] Siemens ST7 ScadaConnect
ICS Advisory
##
Siemens ST7 ScadaConnect
Release DateJune 13, 2024
Alert CodeICSA-24-165-04
Related topics:
Industrial Control System Vulnerabilities, Industrial Control Systems
As of January 10, 2023, CISA will no longer be updating ICS security advisories for Siemens product vulnerabilities beyond the initial advisory. For the most up-to-date information on vulnerabilities in this advisory, please see Siemens' ProductCERT Security Advisories (CERT Services | Services | Siemens Global).
View CSAF
## 1. EXECUTIVE SUMMARY
- CVSS v3 8.2
- ATTENTION: Exploitable remotely/low attack complexity
- Vendor: Siemens
- Equipment: ST7 ScadaConnect
- Vulnerabilities: Integer Overflow or Wraparound, Double Free, Improper Certificate Validation, Inefficient Regular Ex
Microsoft
ASP.NET Core SignalR and Visual Studio Information Disclosure Vulnerability
vendor_msrc·2023-08-08·CVSS 6.2
CVE-2023-35391 [MEDIUM] ASP.NET Core SignalR and Visual Studio Information Disclosure Vulnerability
ASP.NET Core SignalR and Visual Studio Information Disclosure Vulnerability
FAQ: What type of information could be disclosed by this vulnerability?
This vulnerability makes it possible to listen to any group or user with a specially crafted group/username. By exploiting this vulnerability, the attacker can now receive messages for group(s) that they are unauthorized to view.
FAQ: According to the CVSS metric, the attack vector is local (AV:L). Why does the CVE title indicate that this is information disclosure?
The attack itself is carried out locally. For example, when the score indicates that the Attack Vector is Local (AV:L) and User Interaction is Required (UI:R), this could describe an exploit in which an attacker, through social engineering, convinces a victim to download and run a
Red Hat
dotnet: Redis backplane in SignalR listen disclosure information to unexpected group or user
vendor_redhat·2023-08-08·CVSS 6.2
CVE-2023-35391 [MEDIUM] CWE-200 dotnet: Redis backplane in SignalR listen disclosure information to unexpected group or user
dotnet: Redis backplane in SignalR listen disclosure information to unexpected group or user
ASP.NET Core SignalR and Visual Studio Information Disclosure Vulnerability
A vulnerability was found in dotnet. This issue exists in .NET 6.0 and .NET 7.0 when using the redis backplane in SignalIR, which may result in information disclosure.
Statement: This CVE only affects .NET configurations on Windows OS. Red Hat software are not impacted.
Package: rh-dotnet60 (.NET 6.0 on Red Hat Enterprise Linux) - Not affected
Package: dotnet6.0 (Red Hat Enterprise Linux 8) - Not affected
Package: dotnet7.0 (Red Hat Enterprise Linux 8) - Not affected
Package: dotnet6.0 (Red Hat Enterprise Linux 9) - Not affected
Package: dotnet7.0 (Red Hat Enterprise Linux 9) - Not affected
GHSA
.NET Information Disclosure Vulnerability
ghsa·2023-08-11·CVSS 7.5
CVE-2023-35391 [HIGH] CWE-200 .NET Information Disclosure Vulnerability
.NET Information Disclosure Vulnerability
# Microsoft Security Advisory CVE-2023-35391: .NET Information Disclosure Vulnerability
## Executive summary
Microsoft is releasing this security advisory to provide information about a vulnerability in ASP.NET core 2.1, .NET 6.0 and, .NET 7.0. This advisory also provides guidance on what developers can do to update their applications to remove this vulnerability.
A vulnerability exists in ASP.NET Core 2.1, .NET 6.0 and, .NET 7.0 applications using SignalR when redis backplane use might result in information disclosure.
## Announcement
Announcement for this issue can be found at https://github.com/dotnet/announcements/issues/267
### Mitigation factors
Microsoft has not identified any mitigating factors for this vulnerability.
## Affected s
OSV
.NET Information Disclosure Vulnerability
osv·2023-08-11·CVSS 7.5
CVE-2023-35391 [HIGH] .NET Information Disclosure Vulnerability
.NET Information Disclosure Vulnerability
# Microsoft Security Advisory CVE-2023-35391: .NET Information Disclosure Vulnerability
## Executive summary
Microsoft is releasing this security advisory to provide information about a vulnerability in ASP.NET core 2.1, .NET 6.0 and, .NET 7.0. This advisory also provides guidance on what developers can do to update their applications to remove this vulnerability.
A vulnerability exists in ASP.NET Core 2.1, .NET 6.0 and, .NET 7.0 applications using SignalR when redis backplane use might result in information disclosure.
## Announcement
Announcement for this issue can be found at https://github.com/dotnet/announcements/issues/267
### Mitigation factors
Microsoft has not identified any mitigating factors for this vulnerability.
## Affected s
No detection rules found.
No writeups or analysis indexed.
2023-08-08
Published