CVE-2017-5871 in Odoo
Summary
by MITRE
Odoo Version <= 8.0-20160726 and Version 9 is affected by: CWE-601: Open redirection. The impact is: obtain sensitive information (remote).
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Analysis
by VulDB Data Team • 09/23/2023
The vulnerability identified as CVE-2017-5871 affects Odoo versions 8.0-20160726 and 9.0, presenting a critical security flaw categorized under CWE-601: Open Redirection. This vulnerability resides in the application's handling of URL redirection mechanisms, specifically within the authentication and session management components of the Odoo platform. The flaw allows malicious actors to craft specially formatted URLs that redirect users to arbitrary external domains without proper validation or user consent, creating a significant attack surface for various malicious activities including phishing and credential theft.
The technical implementation of this vulnerability stems from inadequate input validation within Odoo's redirect functionality. When users authenticate or perform certain actions within the application, the system processes redirect parameters that should be validated against a whitelist of approved domains. However, the vulnerable versions fail to properly sanitize or verify these redirect URLs, allowing attackers to manipulate the redirect behavior. This occurs because the application accepts any URL provided in the redirect parameter without checking whether it points to a trusted internal domain or if it represents a legitimate continuation of the user's session.
The operational impact of this vulnerability extends beyond simple redirection and can result in the unauthorized disclosure of sensitive information. Attackers can leverage this flaw to redirect users to malicious domains where they can capture login credentials, session tokens, or other sensitive data. The remote nature of this vulnerability means that attackers do not require physical access to the system or network, making it particularly dangerous in enterprise environments where Odoo serves as a critical business application. The vulnerability can be exploited through various attack vectors including email phishing campaigns, compromised web pages, or social engineering tactics that manipulate users into clicking malicious links.
From a cybersecurity perspective, this vulnerability aligns with the ATT&CK framework's technique T1566: Phishing, as it enables attackers to create convincing phishing scenarios by redirecting users to fraudulent websites that appear legitimate. The open redirection vulnerability also supports credential harvesting attacks and can facilitate more sophisticated attacks such as man-in-the-middle operations where attackers intercept and modify user sessions. Organizations utilizing vulnerable Odoo versions face significant risk of data breaches, unauthorized access to business systems, and potential regulatory compliance violations.
The recommended mitigation strategies for this vulnerability involve immediate patching of affected Odoo installations to the latest stable versions that contain proper URL validation mechanisms. Organizations should implement strict input validation for all redirect parameters and establish a whitelist of approved domains that the application is permitted to redirect to. Network-level controls such as web application firewalls can provide additional protection by monitoring and blocking suspicious redirect patterns. Regular security assessments and penetration testing should be conducted to identify similar vulnerabilities in other applications and ensure that proper security controls are in place to prevent unauthorized redirection attacks.