A stored cross-site scripting (XSS) vulnerability exists in OpenNebula v6.10.0.1 and earlier versions. This vulnerability allows attackers to execute arbitrary web scripts or HTML by injecting a crafted payload into the virtual network template parameter. The vulnerability was identified and fixed in version 7.0 of OpenNebula.
With a CVSS score of 6.1, this vulnerability is classified as medium severity, indicating that it poses a moderate risk to affected systems. Organizations using vulnerable versions of OpenNebula should be aware of the risk associated with this vulnerability, especially in environments where user interaction is required for exploitation.
Risk to organizations includes potential unauthorized access to sensitive information through XSS attacks, which can lead to further compromises. It is crucial for organizations to prioritize patching to mitigate the risks involved.
Immediate action is recommended to address this vulnerability to prevent exploitation that could compromise the integrity of network applications and user data.
Vulnerability Details
According to the CVE description, this vulnerability allows attackers to execute arbitrary web scripts or HTML via injecting a crafted payload into the virtual network template parameter. The vulnerability affects OpenNebula v6.10.0.1 and earlier versions, and it has been resolved in version 7.0.
The CVSS score for this vulnerability is 6.1, indicating medium severity. The attack vector is network-based, with low attack complexity, no privileges required, and user interaction needed. The impacts on confidentiality and integrity are classified as low, with no availability impact.
The CWE classification for this vulnerability is CWE-79, which relates to improper neutralization of input during web page generation ('cross-site scripting').
Technical Analysis
The root cause of this vulnerability lies in the improper handling of user input within OpenNebula's virtual network template parameter. Attackers can exploit this by injecting malicious scripts, which are then executed in the context of the user's browser. The attack requires that the victim interacts with the malicious input.
The attack vector is network-based, with low complexity, meaning that attackers do not need advanced skills to exploit this vulnerability. No special privileges are needed to initiate the attack, but user interaction is required to trigger the execution of the injected scripts.
The potential impacts include low confidentiality and integrity, as attackers may gain unauthorized access to user data or manipulate web pages. There is no impact on availability, as the exploit does not disrupt service.
Risk & Impact Analysis
Organizations using vulnerable versions of OpenNebula face significant risks associated with cross-site scripting attacks. Attackers may leverage this vulnerability to execute malicious scripts that could lead to unauthorized access to sensitive data or compromise user sessions.
The blast radius of this vulnerability could extend to any user interacting with the compromised network template, leading to widespread impacts in environments where OpenNebula is deployed. Given the medium CVSS score, organizations should address this vulnerability in their priority patch cycle.
Organizations should prioritize patching immediately to mitigate risks associated with this vulnerability and prevent potential exploitation that could compromise their systems.
Exploitation Status
Signal | Status |
|---|---|
Known Exploit | Yes |
Public PoC | Yes |
Actively Exploited | No |
Ransomware Use | No |
Affected Versions
OpenNebula versions prior to 7.0 are affected by this vulnerability. Organizations should upgrade to version 7.0 or later to mitigate the risks associated with this vulnerability.
Mitigation & Remediation
To remediate this vulnerability, organizations should upgrade to OpenNebula version 7.0 or later. If an immediate upgrade is not possible, consider implementing configuration hardening measures to limit the exposure to XSS attacks.
Organizations may also consider applying appropriate network controls to restrict access to vulnerable components and should regularly monitor their systems for any suspicious activity.
For further security assessments, organizations can validate their security posture through application security assessments that can identify similar weaknesses.
Detection Guidance
Organizations should monitor logs for unusual activity that may indicate exploitation attempts, particularly focusing on user inputs related to virtual network templates.
Detecting behavioral anomalies in user sessions can provide insight into potential attacks. Additionally, network signatures that identify unusual requests can help in early detection of exploitation attempts.
AppSecure Threat Intelligence Insight
The existence of this XSS vulnerability in OpenNebula highlights the importance of securing user inputs and validating data within applications. Security teams should analyze this vulnerability trend as it underscores the need for robust input validation mechanisms.
Organizations should consider adopting a proactive security posture by investing in penetration testing services to identify and remediate vulnerabilities before they can be exploited.
Furthermore, continuous monitoring for vulnerabilities and regular security assessments can help organizations stay ahead of potential threats. This incident serves as a reminder of the evolving landscape of application security.
For more insights on managing application vulnerabilities, organizations can refer to our vulnerability management program guide.
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
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