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Oasis Safety has recognized a vulnerability in Cursoran AI-based code editor, that permits hidden code to run as quickly as a consumer opens a venture folder with none motion or warning.
The difficulty comes from a default setting in Cursor. A security function referred to as Workspace Belief is disabled by default when this system is first put in. In consequence, sure process recordsdata can start executing instructions instantly when a developer opens a folder.
If a consumer provides a dangerous process to a venture and shares it on-line, these instructions will run as quickly as one other individual opens the folder in Cursor.
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Cursor is constructed on prime of Visible Studio Code, which additionally consists of the Workspace Belief function. This instrument is designed to guard builders from malicious code by blocking automated duties from unknown sources.
The vulnerability exploits the .vscode/duties.json filewhich might include directions to run duties as quickly as a folder is opened. Attackers can place these directions in a shared venture.
Based on Erez Schwartz from Oasis Safety, this habits can result in stolen credentials, modified recordsdata, or system entry. It additionally will increase the possibilities of provide chain assaults, the place malicious code spreads via instruments or initiatives utilized by many individuals.
To remain protected, customers ought to take a number of steps. First, they need to allow Workspace Belief in Cursor to cease unknown duties from working robotically. Second, it’s suggested to open untrusted initiatives utilizing a special code editor, particularly the .vscode folder, earlier than utilizing Cursor.
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