UglifyJS2 Code Review

ISGroup SRL performed an automated Code Review (not a real Static Analysis, more a grep-on-steroid) of this NodeJS project in order to identify potential security vulnerabilities. We do not guarantee that all the findings are valid, and for sure there are plenty of false-positives and false-negatives (undetected issues) but it's free and your project could benefit from this security analisys. The following data is also available in JSON format!

Possible Security Issues

Issue	Description	Line	File
Server Side Injection(SSI) - new Function()	User controlled data in 'new Function()' can result in Server Side Injection (SSI) or Remote Code Execution (RCE).	267	test/run-tests.js
Remote OS Command Execution	User controlled data in 'child_process.exec()' can result in Remote OS Command Execution.	2	test/mocha/cli.js
Server Side Injection(SSI) - eval()	User controlled data in eval() can result in Server Side Injection (SSI) or Remote Code Execution (RCE).	14	test/mocha/cli.js
Remote OS Command Execution	User controlled data in 'child_process.exec()' can result in Remote OS Command Execution.	2	test/mocha/spidermonkey.js
Server Side Injection(SSI) - eval()	User controlled data in eval() can result in Server Side Injection (SSI) or Remote Code Execution (RCE).	16	test/mocha/spidermonkey.js
Server Side Injection(SSI) - eval()	User controlled data in eval() can result in Server Side Injection (SSI) or Remote Code Execution (RCE).	16	test/compress/issue-976.js
Server Side Injection(SSI) - eval()	User controlled data in eval() can result in Server Side Injection (SSI) or Remote Code Execution (RCE).	19	test/compress/issue-976.js
Server Side Injection(SSI) - eval()	User controlled data in eval() can result in Server Side Injection (SSI) or Remote Code Execution (RCE).	23	test/compress/issue-976.js
Server Side Injection(SSI) - eval()	User controlled data in eval() can result in Server Side Injection (SSI) or Remote Code Execution (RCE).	35	test/compress/issue-976.js
Server Side Injection(SSI) - eval()	User controlled data in eval() can result in Server Side Injection (SSI) or Remote Code Execution (RCE).	38	test/compress/issue-976.js
Server Side Injection(SSI) - eval()	User controlled data in eval() can result in Server Side Injection (SSI) or Remote Code Execution (RCE).	42	test/compress/issue-976.js
Server Side Injection(SSI) - eval()	User controlled data in eval() can result in Server Side Injection (SSI) or Remote Code Execution (RCE).	54	test/compress/issue-976.js
Server Side Injection(SSI) - eval()	User controlled data in eval() can result in Server Side Injection (SSI) or Remote Code Execution (RCE).	57	test/compress/issue-976.js
Server Side Injection(SSI) - eval()	User controlled data in eval() can result in Server Side Injection (SSI) or Remote Code Execution (RCE).	65	test/compress/issue-976.js
Server Side Injection(SSI) - eval()	User controlled data in eval() can result in Server Side Injection (SSI) or Remote Code Execution (RCE).	68	test/compress/issue-976.js
Server Side Injection(SSI) - eval()	User controlled data in eval() can result in Server Side Injection (SSI) or Remote Code Execution (RCE).	81	test/compress/issue-976.js
Server Side Injection(SSI) - eval()	User controlled data in eval() can result in Server Side Injection (SSI) or Remote Code Execution (RCE).	84	test/compress/issue-976.js
Server Side Injection(SSI) - eval()	User controlled data in eval() can result in Server Side Injection (SSI) or Remote Code Execution (RCE).	87	test/compress/issue-976.js
Server Side Injection(SSI) - eval()	User controlled data in eval() can result in Server Side Injection (SSI) or Remote Code Execution (RCE).	974	test/compress/collapse_vars.js
Server Side Injection(SSI) - eval()	User controlled data in eval() can result in Server Side Injection (SSI) or Remote Code Execution (RCE).	978	test/compress/collapse_vars.js
Server Side Injection(SSI) - eval()	User controlled data in eval() can result in Server Side Injection (SSI) or Remote Code Execution (RCE).	993	test/compress/collapse_vars.js
Server Side Injection(SSI) - new Function()	User controlled data in 'new Function()' can result in Server Side Injection (SSI) or Remote Code Execution (RCE).	28	tools/node.js
Server Side Injection(SSI) - new Function()	User controlled data in 'new Function()' can result in Server Side Injection (SSI) or Remote Code Execution (RCE).	547	lib/mozilla-ast.js
Server Side Injection(SSI) - new Function()	User controlled data in 'new Function()' can result in Server Side Injection (SSI) or Remote Code Execution (RCE).	550	lib/mozilla-ast.js
Server Side Injection(SSI) - new Function()	User controlled data in 'new Function()' can result in Server Side Injection (SSI) or Remote Code Execution (RCE).	61	lib/ast.js
Server Side Injection(SSI) - eval()	User controlled data in eval() can result in Server Side Injection (SSI) or Remote Code Execution (RCE).	339	lib/compress.js
Server Side Injection(SSI) - eval()	User controlled data in eval() can result in Server Side Injection (SSI) or Remote Code Execution (RCE).	990	lib/compress.js
Server Side Injection(SSI) - eval()	User controlled data in eval() can result in Server Side Injection (SSI) or Remote Code Execution (RCE).	1036	lib/compress.js
Server Side Injection(SSI) - new Function()	User controlled data in 'new Function()' can result in Server Side Injection (SSI) or Remote Code Execution (RCE).	2092	lib/compress.js
Server Side Injection(SSI) - new Function()	User controlled data in 'new Function()' can result in Server Side Injection (SSI) or Remote Code Execution (RCE).	260	lib/utils.js

Missing Security Features

Issue	Description
Missing Security Header - X-Frame-Options (XFO)	X-Frame-Options (XFO) header provides protection against Clickjacking attacks.
Missing Security Header - Content-Security-Policy (CSP)	Content Security Policy (CSP), a mechanism web applications can use to mitigate a broad class of content injection vulnerabilities, such as cross-site scripting (XSS). CSP Header was not found.
Missing Security Header - Strict-Transport-Security (HSTS)	Strict-Transport-Security (HSTS) header enforces secure (HTTP over SSL/TLS) connections to the server.
Missing 'httpOnly' in Cookie	JavaScript can access Cookies if they are not marked httpOnly.
Infromation Disclosure - X-Powered-By	Remove the X-Powered-By header to prevent information gathering.
Missing Security Header - X-Content-Type-Options	X-Content-Type-Options header prevents Internet Explorer and Google Chrome from MIME-sniffing a response away from the declared content-type.
Missing Security Header - X-Download-Options: noopen	X-Download-Options header set to noopen prevents IE users from directly opening and executing downloads in your site's context.
Missing Security Header - X-XSS-Protection:1	X-XSS-Protection header set to 1 enables the Cross-site scripting (XSS) filter built into most recent web browsers.
Missing Security Header - Public-Key-Pins (HPKP)	Public-Key-Pins (HPKP) ensures that certificate is Pinned.

Node.Security

Security Audit of UglifyJS2