Plattform
nodejs
Komponente
mathjs
Behoben 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. An attacker can leverage Unicode characters to craft malicious input that bypasses typical validation checks. By injecting these crafted strings, they can overwrite properties on the Object.prototype, effectively poisoning the entire JavaScript environment. This can lead to denial-of-service conditions, unexpected application behavior, or, in more severe cases, arbitrary code execution if the manipulated properties are used in sensitive operations. The impact is magnified in applications heavily reliant on math.js for calculations or data processing, as the attacker can subtly alter the results of these operations.
This vulnerability 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 publicly reported, the ease of exploitation and the potential for code execution make it a high-priority vulnerability. It is not currently listed on the CISA KEV catalog. Public proof-of-concept exploits are available, demonstrating the feasibility of exploiting this vulnerability.
Applications built on Node.js that utilize math.js for numerical computations or data processing are at risk. This includes web applications, command-line tools, and server-side scripts. Specifically, applications that accept user-provided data and pass it directly to math.js functions without proper sanitization are particularly vulnerable. Developers using older versions of math.js in production environments should prioritize upgrading to the patched version.
• nodejs / server:
npm list math.jsThis command checks for installed versions of math.js. If the version is less than 3.17.0, the system is vulnerable. • nodejs / server:
grep -r 'Object.prototype.' /path/to/your/appSearch for code that directly modifies Object.prototype. This may indicate attempts to exploit prototype pollution.
• generic web:
Inspect application logs for unusual errors or warnings related to object property access or modification. Unexpected behavior in data processing functions could be a sign of exploitation.
disclosure
patch
Exploit-Status
EPSS
0.49% (65% Perzentil)
CVSS-Vektor
The primary mitigation for CVE-2017-1001003 is to upgrade to math.js version 3.17.0 or later, which includes a fix for this prototype pollution vulnerability. If upgrading is not immediately feasible due to compatibility issues or breaking changes, consider implementing input validation and sanitization to prevent the injection of malicious Unicode characters. While not a complete solution, this can reduce the attack surface. Web application firewalls (WAFs) configured to detect and block suspicious input patterns might also offer some protection. After upgrading, confirm the fix by attempting to create objects with Unicode characters and verifying that the prototype remains unchanged.
Kein offizieller Patch verfügbar. Prüfe auf Workarounds oder überwache auf Updates.
Schwachstellenanalysen und kritische Warnungen direkt in deinen Posteingang.
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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