secure-code-warrior-for-github[bot]
commented
2 years ago Micro-Learning Topic: OS command injection (Detected by phrase)
Matched on "command injection"
In many situations, applications will rely on OS provided functions, scripts, macros and utilities instead of reimplementing them in code. While functions would typically be accessed through a native interface library, the remaining three OS provided features will normally be invoked via the command line or launched as a process. If unsafe inputs are used to construct commands or arguments, it may allow arbitrary OS operations to be performed that can compromise the server.
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Helpful references
- OWASP Command Injection - OWASP community page with comprehensive information about command injection, and links to various OWASP resources to help detect or prevent it.
- OWASP testing for Command Injection - This article is focused on providing testing techniques for identifying command injection flaws in your applications
This PR contains the following updates:
1.7.2->1.7.3GitHub Vulnerability Alerts
CVE-2021-42740
The shell-quote package before 1.7.3 for Node.js allows command injection. An attacker can inject unescaped shell metacharacters through a regex designed to support Windows drive letters. If the output of this package is passed to a real shell as a quoted argument to a command with exec(), an attacker can inject arbitrary commands. This is because the Windows drive letter regex character class is {A-z] instead of the correct {A-Za-z]. Several shell metacharacters exist in the space between capital letter Z and lower case letter a, such as the backtick character.
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