CVE-2022-35827 Overview
CVE-2022-35827 is a Remote Code Execution vulnerability affecting Microsoft Visual Studio. This vulnerability allows attackers to execute arbitrary code on systems running vulnerable versions of the popular integrated development environment (IDE). The vulnerability requires user interaction, typically through opening a maliciously crafted file or project, but can be exploited remotely over the network.
Critical Impact
This Remote Code Execution vulnerability in Microsoft Visual Studio could allow attackers to execute arbitrary code with the privileges of the current user, potentially leading to complete system compromise in developer environments.
Affected Products
- Microsoft Visual Studio 2012 Update 5
- Microsoft Visual Studio 2013 Update 5
- Microsoft Visual Studio 2015 Update 3
- Microsoft Visual Studio 2017 version 15.9
- Microsoft Visual Studio 2019 versions 16.9 and 16.11
- Microsoft Visual Studio 2022 versions 17.0 and 17.2
Discovery Timeline
- 2022-08-09 - CVE-2022-35827 published to NVD
- 2024-11-21 - Last updated in NVD database
Technical Details for CVE-2022-35827
Vulnerability Analysis
This Remote Code Execution vulnerability in Microsoft Visual Studio stems from improper handling of certain inputs within the IDE. When a user opens a specially crafted project or file, the vulnerability can be triggered, allowing an attacker to execute arbitrary code in the context of the current user.
The attack requires user interaction—specifically, the victim must open a malicious file or project. This could be delivered through social engineering tactics such as phishing emails containing malicious Visual Studio project files, or by convincing developers to clone and open compromised repositories.
Developer environments are particularly attractive targets for attackers due to their elevated privileges, access to source code repositories, and potential connection to build and deployment pipelines. Successful exploitation could lead to intellectual property theft, supply chain attacks through code injection, or lateral movement within enterprise networks.
Root Cause
The vulnerability exists due to insufficient validation of input data processed by Visual Studio components. While Microsoft has not disclosed specific technical details about the root cause, the classification as a Remote Code Execution vulnerability indicates that the affected component fails to properly sanitize or validate certain types of input, allowing attacker-controlled data to influence code execution paths.
Attack Vector
The attack vector for CVE-2022-35827 is network-based but requires user interaction. An attacker could exploit this vulnerability by:
- Crafting a malicious Visual Studio project or solution file
- Distributing the malicious content through code repositories, email attachments, or download links
- Convincing the victim developer to open the malicious project in Visual Studio
- Upon opening, the malicious payload executes with the user's privileges
The vulnerability is exploited through the network vector, meaning the malicious content can be delivered remotely. However, local access is not required—the attacker only needs to convince the user to interact with the malicious content. No special privileges are required to exploit this vulnerability, and successful exploitation can result in complete compromise of confidentiality, integrity, and availability of the affected system.
For detailed technical information, refer to the Microsoft Security Update Guide.
Detection Methods for CVE-2022-35827
Indicators of Compromise
- Unexpected Visual Studio processes spawning child processes with command-line interpreters (cmd.exe, powershell.exe)
- Visual Studio attempting to execute binaries from temporary directories or user-writable locations
- Unusual network connections originating from devenv.exe or related Visual Studio processes
- Recently opened suspicious project files from untrusted sources in Visual Studio's recent files list
Detection Strategies
- Monitor Visual Studio process (devenv.exe) for spawning unexpected child processes, especially script interpreters or system utilities
- Implement file integrity monitoring on Visual Studio installation directories to detect unauthorized modifications
- Deploy endpoint detection and response (EDR) solutions to identify anomalous behavior patterns from Visual Studio processes
- Review and audit recently opened projects and solutions for files sourced from untrusted locations
Monitoring Recommendations
- Enable enhanced logging for Visual Studio processes and monitor for abnormal process creation events
- Configure SIEM rules to alert on Visual Studio processes making network connections to suspicious IP addresses or domains
- Implement application whitelisting policies to prevent unauthorized code execution from Visual Studio directories
- Monitor for signs of code execution from temporary file locations initiated by Visual Studio
How to Mitigate CVE-2022-35827
Immediate Actions Required
- Update all Microsoft Visual Studio installations to the latest patched versions immediately
- Educate developers about the risks of opening Visual Studio projects from untrusted sources
- Implement email filtering to block or quarantine Visual Studio project file attachments from external senders
- Review and restrict access to development environments to minimize potential impact
Patch Information
Microsoft has released security updates to address CVE-2022-35827 as part of their August 2022 security updates. Administrators should apply the appropriate updates for their Visual Studio versions:
- Visual Studio 2012 Update 5: Apply the latest security update
- Visual Studio 2013 Update 5: Apply the latest security update
- Visual Studio 2015 Update 3: Apply the latest security update
- Visual Studio 2017 version 15.9: Update to the latest servicing release
- Visual Studio 2019 versions 16.9 and 16.11: Update to the latest servicing release
- Visual Studio 2022 versions 17.0 and 17.2: Update to the latest servicing release
For detailed patch information and download links, visit the Microsoft Security Update Guide.
Workarounds
- Avoid opening Visual Studio projects or solutions from untrusted or unknown sources until patches are applied
- Use virtual machines or isolated development environments when working with projects from external parties
- Implement strict code review policies for any projects received from external sources before opening them in Visual Studio
- Configure Windows Defender Application Control (WDAC) or AppLocker policies to restrict code execution from non-standard locations
# Verify Visual Studio installation version via Developer Command Prompt
# Run this command to check if your version is affected
devenv /?
# Check the version number against the affected versions listed above
# Update Visual Studio through Visual Studio Installer or Windows Update
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
