CVE-2012-2169 in Rational ClearQuest
Summary
by MITRE
Cross-site scripting (XSS) vulnerability in the file-upload functionality in the Web client in IBM Rational ClearQuest 7.1.x before 7.1.2.7 allows remote authenticated users to inject arbitrary web script or HTML via the File Description field.
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Analysis
by VulDB Data Team • 12/08/2021
The vulnerability identified as CVE-2012-2169 represents a critical cross-site scripting flaw within IBM Rational ClearQuest 7.1.x versions prior to 7.1.2.7, specifically affecting the web client's file upload functionality. This vulnerability resides in the handling of user input within the File Description field, which fails to properly sanitize or validate malicious content submitted by authenticated users. The flaw enables remote attackers to execute arbitrary web scripts or HTML code within the context of other users' browsers, potentially leading to unauthorized access to sensitive data or system compromise. The vulnerability is particularly concerning because it requires only authentication to exploit, making it accessible to users with legitimate access privileges who may be targeted through social engineering or by compromising credentials.
The technical implementation of this vulnerability stems from insufficient input validation and output encoding mechanisms within the web application's file upload interface. When users submit files with descriptions containing malicious scripts, the application fails to properly escape or filter special characters that could be interpreted as executable code by web browsers. This weak input sanitization creates an environment where attackers can inject javascript code or HTML elements that execute when other users view the file descriptions. The vulnerability maps directly to CWE-79 - Improper Neutralization of Input During Web Page Generation, which classifies this as a classic XSS attack vector. The flaw also aligns with ATT&CK technique T1566.001 - Phishing, as it can be exploited through malicious file descriptions that trick users into executing harmful code.
The operational impact of this vulnerability extends beyond simple script execution, as it can facilitate more sophisticated attacks including session hijacking, credential theft, and data exfiltration. An authenticated attacker with access to the ClearQuest environment can craft malicious file descriptions that, when viewed by other users, execute scripts in their browser context. This could enable attackers to steal session cookies, capture user credentials, or redirect victims to malicious sites. The vulnerability affects organizations using IBM Rational ClearQuest for requirements management, change tracking, and collaboration, where file uploads are common and sensitive project information is stored. Attackers could exploit this to gain unauthorized access to confidential business data, disrupt workflow processes, or establish persistent access points within the organization's development environment. The risk is amplified in environments where multiple users collaborate on shared projects, as the malicious code could affect any user who views the compromised file descriptions.
Organizations should immediately implement mitigations including applying the vendor-provided patch for IBM Rational ClearQuest 7.1.2.7 or higher, which addresses the input validation deficiencies in the file upload functionality. Network administrators should also consider implementing additional security controls such as web application firewalls that can detect and block malicious script injection attempts. Input validation should be strengthened to ensure all user-supplied data, particularly in file description fields, is properly sanitized before storage or display. Implementing content security policies can further limit the execution of unauthorized scripts in the browser context. Regular security assessments and penetration testing should be conducted to identify similar vulnerabilities in other components of the ClearQuest environment, as well as in related systems that may share similar input handling patterns. The vulnerability demonstrates the critical importance of input validation in web applications and highlights the need for comprehensive security testing throughout the software development lifecycle to prevent such flaws from reaching production environments.