CVE-2015-8524 in Business Process Manager
Summary
by MITRE
Cross-site scripting (XSS) vulnerability in Process Portal in IBM Business Process Manager 8.5.0.x through 8.5.0.2, 8.5.5.x through 8.5.5.0, and 8.5.6.x through 8.5.6.2 allows remote attackers to inject arbitrary web script or HTML via a crafted URL.
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Analysis
by VulDB Data Team • 07/08/2022
The CVE-2015-8524 vulnerability represents a critical cross-site scripting flaw within IBM Business Process Manager's Process Portal component, affecting multiple version ranges including 8.5.0.x through 8.5.0.2, 8.5.5.x through 8.5.5.0, and 8.5.6.x through 8.5.6.2. This vulnerability exposes organizations to significant security risks by allowing remote attackers to execute malicious web scripts or HTML code through specially crafted URLs. The flaw resides in the Process Portal's insufficient input validation and output encoding mechanisms, creating an attack surface where user-supplied data is not properly sanitized before being rendered in web responses.
The technical nature of this vulnerability aligns with CWE-79, which categorizes cross-site scripting as a code injection flaw occurring when untrusted data is incorporated into web pages without proper validation or encoding. The vulnerability specifically manifests when the Process Portal fails to adequately sanitize URL parameters, enabling attackers to inject malicious payloads that execute in the context of other users' browsers. This type of vulnerability falls under the ATT&CK technique T1566.001 for initial access through spearphishing attachments, as attackers can craft malicious URLs that, when clicked by unsuspecting users, execute their payloads within the victim's browser session.
The operational impact of this vulnerability extends beyond simple script execution, as it can enable attackers to steal session cookies, perform unauthorized actions on behalf of users, redirect victims to malicious sites, or extract sensitive information from the authenticated user's session. Given that Process Portal serves as a central interface for business process management activities, successful exploitation could compromise critical business processes, expose confidential workflow data, and potentially allow privilege escalation within the application. The remote nature of the attack means that adversaries can exploit this vulnerability from anywhere on the internet without requiring physical access to the system.
Organizations affected by this vulnerability should implement immediate mitigations including input validation and output encoding controls, proper URL parameter sanitization, and deployment of web application firewalls to filter malicious requests. The recommended approach involves upgrading to patched versions of IBM Business Process Manager, implementing strict content security policies, and conducting comprehensive security testing of all web applications. Additionally, organizations should consider network segmentation and monitoring solutions to detect suspicious URL patterns and unauthorized access attempts. The vulnerability demonstrates the critical importance of proper input validation in web applications and serves as a reminder of the need for continuous security assessments and timely patch management to protect against known exploitation techniques.