Rewterz Threat Advisory – Multiple Node.js Vulnerabilities

Severity

Medium

Analysis Summary

CVE-2021-23411

Node.js anchorme module is vulnerable to cross-site scripting, caused by improper validation of user-supplied input by the main function. A remote attacker could exploit this vulnerability using a specially-crafted URL to execute script in a victim’s Web browser within the security context of the hosting Web site, once the URL is clicked. An attacker could use this vulnerability to steal the victim’s cookie-based authentication credentials.

CVE-2021-23410

Node.js msgpack module could allow a remote attacker to execute arbitrary code on the system, caused by an unsafe deserialization in the unpack function. By sending specially-crafted request, an attacker could exploit this vulnerability to execute arbitrary code on the system.

Impact

• Code Execution
• Credential Theft

Affected Vendors

Node.js

Affected Products

• Node.js anchorme 2.1.2
• Node.js msgpack 1.0.3

Remediation

Upgrade to the latest version of Node.js available at Node.js Web site.

https://www.npmjs.com/package/anchorme

https://www.npmjs.com/package/msgpack