Microsoft Visual Studio Code flaw lets extensions steal passwords

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Aug 17, 2017
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Microsoft's Visual Studio Code (VS Code) code editor and development environment contains a flaw that allows malicious extensions to retrieve authentication tokens stored in Windows, Linux, and macOS credential managers. These tokens are used for integrating with various third-party services and APIs, such as Git, GitHub, and other coding platforms, so stealing them could have significant consequences for a compromised organization's data security, potentially leading to unauthorized system access, data breaches, etc.

The flaw was discovered by Cycode researchers, who reported it to Microsoft along with a working proof-of-concept (PoC) they developed. Yet, the tech giant decided against fixing the issue, as extensions are not expected to be sandboxed from the rest of the environment. The security problem discovered by Cycode is caused by a lack of isolation of authentication tokens in VS Code's 'Secret Storage,' an API that allows extensions to store authentication tokens in the operating system, this is done using Keytar, VS Code's wrapper
 

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