CVE-2021-20520 is a cross-site scripting (XSS) vulnerability affecting IBM Jazz Foundation Products. This vulnerability allows users to embed arbitrary JavaScript code into the Web UI, which can alter the intended functionality of the application. Such alterations could potentially lead to the disclosure of sensitive credentials within a trusted session.
The severity of this vulnerability is classified as medium, with a CVSS score of 5.4. Organizations using the affected IBM products must take immediate action to address this issue to protect their systems and user data.
Risk to organizations includes the potential for unauthorized access to sensitive information, which could lead to further exploitation if attackers leverage this vulnerability.
Currently, there is no public exploit confirmed for this vulnerability, but organizations should not delay remediation efforts.
Organizations should prioritize patching immediately.
Vulnerability Details
The official description of this vulnerability indicates that it affects IBM Jazz Foundation Products, allowing for cross-site scripting attacks. The vulnerability is identified with CWE-79, which pertains to improper neutralization of input during web page generation. The CVSS score is 5.4, indicating that while the severity is medium, the potential impact is significant if exploited.
The affected products include IBM Engineering Insights, Engineering Lifecycle Management, Engineering Requirements Quality Assistant On-Premises, Engineering Workflow Management, Rational Engineering Lifecycle Manager, and Rational Team Concert.
The vulnerability was published on March 30, 2021, and has been categorized under the CWE classification of 'Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting').
Technical Analysis
The root cause of CVE-2021-20520 stems from insufficient input validation within the IBM Jazz Foundation's Web UI. Attackers may leverage this flaw to inject malicious scripts that execute in the context of the user’s session.
The attack vector is network-based, requiring low complexity and only low privileges to exploit. User interaction is required for the attack to succeed, as the malicious script must be executed within the user’s browser.
The confidentiality impact is rated as low since the attacker could gain access to user credentials, while integrity impact is also rated low due to the nature of the attack where the original functionality of the application is altered, and there is no availability impact.
Risk & Impact Analysis
The real-world deployment risk associated with this vulnerability is moderate. Organizations using IBM Jazz Foundation Products should be aware that if exploited, this vulnerability could allow attackers to gain unauthorized access to sensitive information stored within trusted sessions.
This matters significantly to organizations, as the potential for credential disclosure could lead to further attacks or exploitation of other vulnerabilities within the same environment.
The blast radius for this vulnerability is notable, as it affects multiple components within the IBM Jazz Foundation suite. Organizations should assess the scope of their deployments to identify all potentially impacted systems.
Given the CVSS score of 5.4, organizations should address this vulnerability in priority patch cycles.
Exploitation Status
Signal | Status |
|---|---|
Known Exploit | No |
Public PoC | No |
Actively Exploited | No |
Ransomware Use | No |
Affected Versions
The affected versions of the IBM products include:
IBM Engineering Insights 7.0, 7.0.1, 7.0.2, Engineering Lifecycle Management 7.0, Engineering Requirements Quality Assistant On-Premises, Engineering Workflow Management (versions 7.0.0, 7.0.1, 7.0.2), Rational Engineering Lifecycle Manager (versions 6.0.2, 6.0.6, 6.0.6.1), and Rational Team Concert (versions 6.0.6, 6.0.6.1, 6.0.6.2).
Mitigation & Remediation
Organizations using the affected IBM products should apply the latest patches provided by the vendor. Detailed patch information can be found in the IBM support documentation.
In the absence of immediate patches, organizations should implement input validation and output encoding mechanisms to mitigate the risk of XSS attacks.
Regular security assessments should also be conducted to identify and remediate similar vulnerabilities.
Detection Guidance
Organizations should monitor application logs for unusual activity that may indicate attempted exploitation of this vulnerability. Key indicators to watch for include unexpected script execution and unusual user behavior.
Network signatures that can identify malicious traffic patterns associated with XSS attacks should also be implemented. Regular reviews of system changes can help identify unauthorized modifications.
AppSecure Threat Intelligence Insight
The long-term significance of CVE-2021-20520 highlights the ongoing need for organizations to prioritize web application security. Cross-site scripting remains a prevalent method for attackers to exploit web applications, and the potential for credential disclosure emphasizes the importance of vigilance.
This vulnerability serves as a reminder for security teams to implement comprehensive security measures, including input validation and appropriate security testing.
Penetration testing methodologies must evolve to address emerging threats effectively.
Vulnerability management programs should be designed with a proactive approach to identify and mitigate risks before they can be exploited.
API security testing and regular reviews of application security practices are essential for maintaining a secure environment.
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
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