CVE-2015-10049 in course-builder
Summary
by MITRE • 01/15/2023
A vulnerability was found in Overdrive Eletrônica course-builder up to 1.7.x and classified as problematic. Affected by this issue is some unknown functionality of the file coursebuilder/modules/oeditor/oeditor.html. The manipulation leads to cross site scripting. The attack may be launched remotely. Upgrading to version 1.8.0 is able to address this issue. The name of the patch is e39645fd714adb7e549908780235911ae282b21b. It is recommended to upgrade the affected component. The identifier of this vulnerability is VDB-218372.
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Analysis
by VulDB Data Team • 02/07/2023
The vulnerability identified as CVE-2015-10049 represents a cross site scripting flaw within Overdrive Eletrônica course-builder software versions 1.7.x and earlier. This security weakness resides in the coursebuilder/modules/oeditor/oeditor.html file, where improper input validation allows malicious actors to inject arbitrary script code into web pages viewed by other users. The vulnerability is classified as remotely exploitable, meaning attackers can leverage this flaw without requiring physical access to the target system or network. The attack vector typically involves crafting malicious payloads that are executed in the context of a victim's browser when they interact with the compromised application. This type of vulnerability falls under CWE-79 which specifically addresses cross site scripting flaws in web applications, making it a critical concern for web security. The vulnerability's remote exploitability aligns with ATT&CK technique T1190 which covers exploiting public-facing applications to gain initial access to target systems.
The technical implementation of this XSS vulnerability stems from insufficient sanitization of user-supplied data within the oeditor.html module. When the application processes input from users without proper validation or encoding mechanisms, it inadvertently allows malicious scripts to be executed within the browser context of legitimate users. This occurs because the application fails to properly escape special characters or implement Content Security Policy headers that would prevent unauthorized script execution. The affected functionality likely handles user-generated content or configuration parameters that are directly rendered in the web interface without adequate security controls. Attackers can exploit this by injecting malicious JavaScript code through form fields, URL parameters, or other input vectors that are processed by the vulnerable module, potentially leading to session hijacking, data theft, or redirection to malicious sites.
The operational impact of this vulnerability extends beyond simple script execution, as it can enable attackers to perform various malicious activities within the context of authenticated user sessions. Successful exploitation could allow threat actors to steal user credentials, access sensitive course materials, modify content, or even escalate privileges within the application. The vulnerability affects the integrity and confidentiality of the course-builder platform, potentially compromising educational institutions' digital learning environments. Organizations relying on this software may face reputational damage, regulatory compliance issues, and potential legal consequences if user data is compromised. The vulnerability's classification as problematic indicates that it poses a significant risk to the overall security posture of systems where it is deployed, particularly in educational environments where user trust and data privacy are paramount.
Mitigation of this vulnerability requires immediate action to upgrade the affected Overdrive Eletrônica course-builder software to version 1.8.0 or later, which contains the necessary security patches. The specific patch identifier e39645fd714adb7e549908780235911ae282b21b should be applied to address the XSS flaw. Organizations should also implement additional security controls including input validation, output encoding, and Content Security Policy enforcement to reduce the attack surface. Regular security assessments and vulnerability scanning should be conducted to identify similar issues in other components of the application stack. Network segmentation and web application firewalls can provide additional layers of protection while the primary upgrade is being implemented. System administrators should monitor for any suspicious activity that might indicate exploitation attempts and maintain comprehensive audit logs to track access patterns and potential unauthorized modifications to course content. The remediation process should also include user education regarding safe browsing practices and the importance of keeping software components up to date with security patches.