CVE-2016-6039 in Jazz Reporting Service
Summary
by MITRE
IBM Jazz Reporting Service (JRS) is vulnerable to cross-site scripting. This vulnerability allows users to embed arbitrary JavaScript code in the Web UI thus altering the intended functionality potentially leading to credentials disclosure within a trusted session.
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Analysis
by VulDB Data Team • 08/09/2020
The vulnerability identified as CVE-2016-6039 affects IBM Jazz Reporting Service (JRS), a component within IBM's collaboration and reporting platform that provides business intelligence capabilities for software development teams. This particular flaw represents a critical security weakness that undermines the integrity of the web-based user interface through a cross-site scripting vulnerability. The vulnerability stems from insufficient input validation and output encoding mechanisms within the JRS web application, allowing malicious actors to inject malicious JavaScript code through user-controllable input fields. When legitimate users interact with the compromised web interface, the embedded scripts execute within their browser context, potentially compromising the security of authenticated sessions.
The technical nature of this vulnerability aligns with CWE-79, which specifically addresses cross-site scripting flaws in web applications. The vulnerability occurs when the application fails to properly sanitize user input before rendering it in web pages, creating an environment where attacker-controlled data can be executed as client-side scripts. In the context of JRS, this means that any input field or parameter that accepts user data without adequate sanitization can become a vector for XSS attacks. The attack typically involves injecting malicious JavaScript code through form fields, URL parameters, or other user-controllable data points within the reporting service interface.
The operational impact of this vulnerability extends beyond simple script execution, as it can lead to serious security consequences including session hijacking, credential theft, and unauthorized access to sensitive business intelligence data. When authenticated users browse to compromised pages containing malicious scripts, the JavaScript code can access session cookies, form data, and other sensitive information that the user has access to within the trusted JRS environment. This creates a significant risk for organizations using JRS for reporting on development projects, as attackers could potentially extract confidential information about software development processes, project timelines, and other proprietary data. The vulnerability is particularly dangerous because it operates within a trusted session context, meaning that the malicious scripts can leverage existing authentication to access additional resources.
Organizations should implement multiple layers of defense to mitigate this vulnerability, including input validation, output encoding, and proper content security policies. The recommended mitigations include implementing strict input validation for all user-controllable data, applying proper HTML encoding to all output rendered in the web interface, and configuring content security policies to prevent unauthorized script execution. Additionally, organizations should ensure that all instances of JRS are updated to the latest available patches from IBM, as the vendor would have released fixes addressing the XSS vulnerability. Network segmentation and monitoring for suspicious script execution patterns can also provide additional protection against exploitation attempts. The vulnerability demonstrates the importance of maintaining secure coding practices and regular security assessments for web applications, particularly those handling sensitive business intelligence data within enterprise environments.