CVE-2020-6302 in Commerce
Summary
by MITRE
SAP Commerce versions 6.7, 1808, 1811, 1905, 2005 contains the jSession ID in the backoffice URL when the application is loaded initially. An attacker can get this session ID via shoulder surfing or man in the middle attack and subsequently get access to admin user accounts, leading to Session Fixation and complete compromise of the confidentiality, integrity and availability of the application.
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Analysis
by VulDB Data Team • 09/09/2020
SAP Commerce platforms running versions 6.7, 1808, 1811, 1905, and 2005 contain a critical security flaw that exposes session identifiers in backoffice URLs during initial application loading. This vulnerability represents a fundamental breakdown in session management practices and creates a direct pathway for unauthorized access to administrative functions. The flaw occurs when the application generates URLs that include the jSessionId parameter, making it visible to anyone who can observe the page load process or intercept network traffic. This exposure directly violates established security principles for session handling and creates an environment where session fixation attacks can be easily executed.
The technical implementation of this vulnerability stems from improper session identifier management within the SAP Commerce framework. When the backoffice application initializes, it embeds the jSessionId directly into URL parameters rather than relying on secure cookie-based session storage mechanisms. This design flaw creates multiple attack vectors including shoulder surfing attacks where an attacker observes session identifiers being displayed on screen, and man-in-the-middle attacks where network traffic can be intercepted to extract the session identifier. The vulnerability specifically aligns with CWE-384, which addresses session fixation issues, and represents a clear violation of secure session management best practices. The exposure of session identifiers in URLs creates an immediate and actionable threat for attackers who can leverage this information to hijack administrative sessions.
The operational impact of this vulnerability extends far beyond simple session theft, creating a complete compromise of the application's core security posture. Once an attacker obtains the jSessionId through either visual observation or network interception, they can immediately assume the identity of the authenticated administrative user. This unauthorized access enables attackers to perform all administrative functions including user management, system configuration changes, data manipulation, and access to sensitive business information. The compromise affects the fundamental security triad of confidentiality, integrity, and availability, as attackers can exfiltrate sensitive data, modify system configurations, and potentially disrupt service availability through malicious administrative actions. This vulnerability directly maps to attack techniques described in the MITRE ATT&CK framework under the credential access and privilege escalation domains, specifically targeting session management weaknesses.
Organizations affected by this vulnerability should implement immediate mitigations including configuration changes that prevent session identifiers from being embedded in URLs, implementing proper secure cookie attributes, and ensuring that session management follows industry standards such as those outlined in OWASP Session Management recommendations. The most effective immediate remediation involves configuring the application to use cookie-based session storage exclusively, disabling URL parameter session tracking, and implementing proper session timeout mechanisms. Additionally, network traffic should be secured through TLS encryption to prevent man-in-the-middle attacks, while monitoring systems should be deployed to detect unusual session activity patterns. Organizations should also consider implementing multi-factor authentication for administrative accounts and regular security assessments to identify similar session management vulnerabilities across their SAP Commerce deployments. The vulnerability underscores the critical importance of proper session handling in enterprise applications and the need for comprehensive security testing that includes URL parameter analysis and session management validation.