CVE-2021-26947 Scanner

Odoo is an integrated suite of open-source business applications actively used by thousands of companies across the globe. The software is utilized for CRM, eCommerce, accounting, inventory, point of sale, project management, and more. Developed by Odoo S.A., its modular design allows businesses of all sizes to tailor it to their specific needs. Users appreciate its intuitive user interface and comprehensive functionality. It's an essential tool for improving business efficiency and automating workflows. Available in both Community and Enterprise editions, Odoo is accessible to small enterprises and large corporations.

The Cross-Site Scripting (XSS) vulnerability allows attackers to inject malicious scripts into web pages viewed by other users. This particular XSS vulnerability in Odoo permits remote attackers to target victims through crafted links. The scripts run in the context of the user's browser, potentially compromising their session. Attackers can exploit this flaw to execute unauthorized actions on behalf of the user or exfiltrate sensitive information. It's a prevalent issue in web applications, often leading to data theft and unauthorized modifications. Addressing XSS vulnerabilities is crucial to maintaining the security and integrity of web applications.

Technically, this vulnerability arises from insufficient sanitization of user inputs in various endpoints within Odoo's web login, signup, and reset password pages. Attackers leverage these endpoints by injecting special HTML elements and JavaScript code that execute in the browser. The vulnerable parameter in the HTTP GET request paths is represented by the 'error' query string, where malicious scripts can be inserted. The lack of proper input validation in these pages facilitates this exploitation. By crafting a specific URL containing the harmful script payload, the attacker can execute unauthorized commands upon the victims opening the link.

Exploiting this vulnerability can have several adverse effects on both the user and the web application. Users may have their session cookies stolen, leading to unauthorized account access. Attackers can impersonate the victim, access personal data, and perform unintended actions within the application. For businesses, this can result in data integrity issues, operational disruptions, or compliance violations if sensitive information is exposed. Moreover, the organization's reputation may suffer if users lose trust in the security of its systems. Promptly addressing such vulnerabilities is essential to prevent potential data breaches and other security incidents.

REFERENCES

• https://github.com/odoo/odoo/issues/107694
• https://www.debian.org/security/2023/dsa-5399
• https://nvd.nist.gov/vuln/detail/CVE-2021-26947