Browserify version 3.0.0 introduces several notable changes compared to its predecessor, version 2.36.1, offering developers enhanced functionality and updated dependencies for browser-side module management. A significant update is the incorporation of numerous browser-specific shims such as url, util, assert, punycode, os-browserify, vm-browserify, string_decoder, tty-browserify, http-browserify, path-browserify, zlib-browserify, https-browserify, crypto-browserify, events-browserify, stream-browserify, timers-browserify, console-browserify, and constants-browserify, providing a more complete Node.js environment within the browser.
The update also reflects dependency upgrades, including "umd" to "~1.3.1", "inherits" to "~2.0.1", and "optimist" to "~0.6.0", which may bring performance improvements or bug fixes. The addition of native-buffer-browserify dependency gives better compatibility to Buffers. A notable change is the replacement of browser-builtins with a suite of individual browser shims. It also includes querystring dependency from a GitHub repo which indicates a specific need to ensure compatibility with older browsers
These changes collectively streamline the process of using Node.js modules in browser environments, eliminating potential compatibility issues. Browserify continues to provide browser-side require() functionality which will be helpful to adopt new projects and modernize legacy codebases. Developers should carefully review their existing projects to ensure compatibility of the dependency updates.
All the vulnerabilities related to the version 3.0.0 of the package
Regular Expression Denial of Service in uglify-js
Versions of uglify-js prior to 2.6.0 are affected by a regular expression denial of service vulnerability when malicious inputs are passed into the parse() method.
var u = require('uglify-js');
var genstr = function (len, chr) {
var result = "";
for (i=0; i<=len; i++) {
result = result + chr;
}
return result;
}
u.parse("var a = " + genstr(process.argv[2], "1") + ".1ee7;");
$ time node test.js 10000
real 0m1.091s
user 0m1.047s
sys 0m0.039s
$ time node test.js 80000
real 0m6.486s
user 0m6.229s
sys 0m0.094s
Update to version 2.6.0 or later.
Prototype Pollution in minimist
Affected versions of minimist are vulnerable to prototype pollution. Arguments are not properly sanitized, allowing an attacker to modify the prototype of Object, causing the addition or modification of an existing property that will exist on all objects.
Parsing the argument --__proto__.y=Polluted adds a y property with value Polluted to all objects. The argument --__proto__=Polluted raises and uncaught error and crashes the application.
This is exploitable if attackers have control over the arguments being passed to minimist.
Upgrade to versions 0.2.1, 1.2.3 or later.
Prototype Pollution in minimist
Minimist prior to 1.2.6 and 0.2.4 is vulnerable to Prototype Pollution via file index.js, function setKey() (lines 69-95).
Potential Command Injection in shell-quote
Affected versions of shell-quote do not properly escape command line arguments, which may result in command injection if the library is used to escape user input destined for use as command line arguments.
The following characters are not escaped properly: >,;,{,}
Bash has a neat but not well known feature known as "Bash Brace Expansion", wherein a sub-command can be executed without spaces by running it between a set of {} and using the , instead of to seperate arguments. Because of this, full command injection is possible even though it was initially thought to be impossible.
const quote = require('shell-quote').quote;
console.log(quote(['a;{echo,test,123,234}']));
// Actual "a;{echo,test,123,234}"
// Expected "a\;\{echo,test,123,234\}"
// Functional Equivalent "a; echo 'test' '123' '1234'"
Update to version 1.6.1 or later.
Potential for Script Injection in syntax-error
Versions of syntax-error prior to 1.1.1 are affected by a cross-site scripting vulnerability which may allow a malicious file to execute code when browserified.
Update to version 1.1.1 or later.