CVE-2016-5899 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-2016-5899 affects IBM Jazz Reporting Service, a component within IBM's collaborative software development platform that provides reporting capabilities for various development tools. This cross-site scripting vulnerability represents a critical security weakness that undermines the integrity of the web-based user interface. The flaw exists in the way the system processes user input within the reporting service's web components, creating an opportunity for malicious actors to inject malicious JavaScript code into the application's response. The vulnerability is particularly concerning because it operates within a trusted session context, meaning that authenticated users who interact with the reporting service could unknowingly execute malicious code that could compromise their session credentials and access privileges.
The technical implementation of this cross-site scripting vulnerability stems from insufficient input validation and output encoding within the IBM Jazz Reporting Service's web interface. When users submit data through the reporting forms or interact with dynamically generated content, the application fails to properly sanitize or encode the input before rendering it in the browser context. This allows attackers to craft malicious payloads that exploit the lack of proper security controls in the web application's input handling mechanisms. The vulnerability aligns with CWE-79 which specifically addresses cross-site scripting flaws in web applications, where improper validation of user-supplied data creates opportunities for malicious code execution. The attack vector typically involves an attacker crafting a specially formatted request or report parameter that when processed by the server and displayed in the browser, executes unintended JavaScript code within the context of the authenticated user's session.
The operational impact of CVE-2016-5899 extends beyond simple script injection, as it can lead to significant security breaches within organizations utilizing IBM Jazz Reporting Service. When an attacker successfully exploits this vulnerability, they can potentially access session cookies, authentication tokens, and other sensitive information that would normally be protected within the trusted application environment. The compromised session could allow attackers to perform actions as authenticated users, potentially accessing confidential project data, modifying reports, or even escalating privileges within the development platform. This vulnerability particularly impacts organizations that rely heavily on collaborative development environments where multiple developers share access to the same reporting infrastructure. The threat is amplified because the attack requires minimal user interaction beyond accessing the vulnerable reporting functionality, making it an attractive target for automated exploitation attempts. According to ATT&CK framework, this vulnerability maps to technique T1059.007 for script injection and T1531 for credential access through session hijacking.
Organizations should implement multiple layers of mitigation strategies to address this vulnerability effectively. Immediate remediation involves applying the official IBM security patches and updates that address the cross-site scripting flaw in the Jazz Reporting Service. System administrators should also consider implementing additional security controls such as content security policies that limit the execution of inline scripts and restrict the sources from which scripts can be loaded. Input validation should be strengthened at all entry points within the reporting service to ensure that user-supplied data is properly sanitized before processing. Network-level protections such as web application firewalls can provide additional monitoring and blocking capabilities for suspicious requests that attempt to exploit this vulnerability. Regular security assessments and penetration testing of the reporting service environment should be conducted to identify potential additional attack vectors and ensure that the implemented mitigations remain effective against evolving threat landscapes. The vulnerability also highlights the importance of maintaining up-to-date security practices and ensuring that all components within collaborative development platforms receive timely security updates to prevent exploitation of known weaknesses.