CVE-2023-33126: .NET and Visual Studio Remote Code Execution Vulnerability

Overview

Severity
High (CVSS 7.3)
CVSS Vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
Category
Remote Code Execution
Exploit Status
Not Exploited
Exploitation Likelihood
Less Likely
Patch Tuesday
2023-Jun
Released
2023-06-13
Last Updated
2023-06-29
EPSS Score
0.99% (percentile: 76.9%)

FAQ

According to the CVSS metric, the attack vector is local (AV:L). Why does the CVE title indicate that this is a remote code execution? The word Remote in the title refers to the location of the attacker. This type of exploit is sometimes referred to as Arbitrary Code Execution (ACE). The attack itself is carried out locally. This means an attacker or victim needs to execute code from the local machine to exploit the vulnerability. According to the CVSS metric, user interaction is required (UI:R) and privileges required  is low (PR:L). What does that mean for this vulnerability? An authorized attacker must send the user a malicious file and convince the user to open it. According to the CVSS metric, user interaction is required (UI:R). What interaction would the user have to do? Exploitation of this vulnerability requires that a user trigger the payload in the application.

Affected Products (7)

Developer Tools

  • .NET 6.0
  • .NET 7.0
  • Microsoft Visual Studio 2022 version 17.2
  • Microsoft Visual Studio 2022 version 17.0
  • Microsoft Visual Studio 2022 version 17.4
  • Microsoft Visual Studio 2022 version 17.6
  • PowerShell 7.2

Security Updates (7)

Acknowledgments

<a href="https://github.com/ycdxsb">ycdxsb</a> with <a href="http://www.iie.ac.cn/">VARAS@IIE</a>, <a href="https://github.com/ycdxsb">ycdxsb</a> with <a href="http://www.iie.ac.cn/">VARAS@IIE</a>

Revision History

  • 2023-06-13: Information published.
  • 2023-06-29: Revised the Security Updates table to include PowerShell 7.2 because this version of PowerShell 7 is affected by this vulnerability. See https://github.com/PowerShell/Announcements/issues/46 for more information.