Platform
nodejs
Component
mathjs
Fixed in
3.17.0
CVE-2017-1001003 describes a prototype pollution vulnerability affecting versions of math.js prior to 3.17.0. This flaw allows attackers to modify the prototype of built-in JavaScript objects by injecting malicious properties using Unicode characters. Successful exploitation can lead to unexpected behavior, denial of service, or potentially even remote code execution. The vulnerability was published on December 18, 2017, and a fix is available in version 3.17.0.
The core of this vulnerability lies in math.js's handling of object creation and property assignment. By crafting malicious input containing Unicode characters, an attacker can bypass validation and inject properties into the prototype of JavaScript objects like Object.prototype. This effectively pollutes the prototype, causing all objects inheriting from it to inherit the attacker-controlled properties. The impact can range from subtle application errors to complete compromise. For example, an attacker could overwrite a property used for authentication or authorization, granting them unauthorized access. While direct remote code execution might be complex, the ability to manipulate object behavior opens avenues for various attacks, especially within applications heavily reliant on math.js for data processing or calculations.
CVE-2017-1001003 gained attention due to its potential for widespread impact, as math.js is a commonly used library in Node.js applications. While no active exploitation campaigns have been definitively linked to this specific CVE, prototype pollution vulnerabilities are a known attack vector. The vulnerability was added to the NVD database on December 26, 2017. Public proof-of-concept exploits demonstrating the vulnerability's impact have been published, increasing the likelihood of exploitation.
Exploit Status
EPSS
0.49% (65% percentile)
CVSS Vector
The primary mitigation for CVE-2017-1001003 is to upgrade to math.js version 3.17.0 or later. This version includes a fix that prevents the prototype pollution vulnerability. If upgrading is not immediately feasible, consider implementing input validation to sanitize user-provided data before passing it to math.js functions. Specifically, filter out or escape Unicode characters that could be used to manipulate object properties. Web application firewalls (WAFs) configured to detect and block malicious payloads targeting prototype pollution may also provide a temporary layer of protection. Regularly review and update dependencies to minimize the risk of similar vulnerabilities.
No official patch available. Check for workarounds or monitor for updates.
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CVE-2017-1001003 is a critical vulnerability in math.js versions before 3.17.0 that allows attackers to manipulate object properties using Unicode characters, potentially leading to code execution.
You are affected if you are using math.js versions prior to 3.17.0 in your Node.js application. Check your installed version using npm list math.js.
Upgrade to math.js version 3.17.0 or later. This version includes the fix for the prototype pollution vulnerability.
While no confirmed active campaigns are publicly known, prototype pollution vulnerabilities are a recognized attack vector, and public proof-of-concept exploits exist.
Refer to the math.js GitHub repository for information and updates related to this vulnerability: https://github.com/mathjs/mathjs/issues/3014
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