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Remote Code Execution (RCE) Affecting winscp package, versions [,5.17.10)

0.0
critical

Snyk CVSS

    Attack Complexity Low
    Confidentiality High
    Integrity High
    Availability High

    Threat Intelligence

    EPSS 0.53% (77th percentile)
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NVD
9.8 critical

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  • Snyk ID SNYK-DOTNET-WINSCP-1065805
  • published 28 Jan 2021
  • disclosed 28 Jan 2021
  • credit Unknown
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Introduced: 28 Jan 2021

CVE-2021-3331 Open this link in a new tab
CWE-94 Open this link in a new tab

How to fix?

Upgrade WinSCP to version 5.17.10 or higher.

Overview

WinSCP is a .NET wrapper around WinSCP’s scripting interface that allows your code to connect to a remote machine and manipulate remote files over SFTP, FTP, WebDAV, S3 and SCP sessions.

Affected versions of this package are vulnerable to Remote Code Execution (RCE). WinSCP allows remote attackers to execute arbitrary programs when the URL handler encounters a crafted URL that loads session settings. (For example, this is exploitable in a default installation in which WinSCP is the handler for sftp:// URLs.)