CVE-2016-15037 in Scumblr
Summary
by MITRE • 01/21/2024
A vulnerability, which was classified as problematic, has been found in go4rayyan Scumblr up to 2.0.1a. Affected by this issue is some unknown functionality of the component Task Handler. The manipulation leads to cross site scripting. The attack may be launched remotely. Upgrading to version 2.0.2 is able to address this issue. The patch is identified as 5c9120f2362ddb7cbe48f2c4620715adddc4ee35. It is recommended to upgrade the affected component. VDB-251570 is the identifier assigned to this vulnerability.
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Analysis
by VulDB Data Team • 02/15/2024
The vulnerability identified as CVE-2016-15037 affects the go4rayyan Scumblr application version 2.0.1a and earlier, specifically targeting the Task Handler component. This cross-site scripting vulnerability represents a critical security flaw that allows remote attackers to inject malicious scripts into web pages viewed by other users. The vulnerability stems from insufficient input validation and output encoding within the task handling functionality, creating an attack surface where user-supplied data is not properly sanitized before being rendered in web responses. The issue is particularly concerning as it enables attackers to execute arbitrary code in the context of victims' browsers, potentially leading to session hijacking, data theft, or unauthorized actions performed on behalf of users. The vulnerability's classification as remotely exploitable means that attackers do not require physical access to the system or local network privileges to carry out attacks, significantly expanding the potential threat landscape.
The technical implementation of this XSS vulnerability occurs when the Task Handler component processes user input without adequate sanitization measures, allowing malicious payloads to be stored and subsequently executed in the browser context of other users. This type of vulnerability falls under the CWE-79 category of Cross-Site Scripting, which is a widespread and well-documented security weakness in web applications. The specific attack vector involves manipulating input fields or parameters that are then processed by the Task Handler component and displayed in web interfaces without proper HTML encoding or context-appropriate sanitization. The vulnerability's impact is amplified by the fact that it affects core functionality of the application, making it difficult for administrators to isolate and remediate without upgrading the entire component. According to the ATT&CK framework, this vulnerability maps to T1566.001 - Phishing: Spearphishing Attachment, as attackers could leverage this XSS flaw to deliver malicious payloads through compromised web interfaces, though the primary attack method here is direct script injection rather than traditional phishing.
The operational impact of CVE-2016-15037 extends beyond simple data theft, as it creates persistent security risks for organizations using affected Scumblr versions. Successful exploitation could enable attackers to establish persistent access through session manipulation, steal sensitive information from authenticated users, or redirect victims to malicious sites that could further compromise their systems. The vulnerability's presence in the Task Handler component suggests that automated processes within the application could be compromised, potentially affecting the integrity of security monitoring and analysis workflows that Scumblr is designed to support. Organizations relying on Scumblr for security operations would face significant risks including potential data breaches, unauthorized access to security monitoring tools, and compromised integrity of security event data. The attack surface is particularly dangerous in environments where Scumblr is used for security monitoring, as attackers could manipulate the very tools designed to detect and respond to security incidents.
The recommended mitigation strategy involves upgrading to version 2.0.2, which includes the patch identified by the commit hash 5c9120f2362ddb7cbe48f2c4620715adddc4ee35. This upgrade addresses the core input validation issues within the Task Handler component by implementing proper output encoding and input sanitization mechanisms. Security administrators should also consider implementing additional protective measures such as content security policies to limit script execution, input validation at multiple layers, and regular security assessments of web applications. The patch addresses the root cause by ensuring that all user-supplied data passed through the Task Handler is properly escaped or encoded before being rendered in web contexts. Organizations should also conduct thorough testing of the patched version to ensure that legitimate functionality remains intact while the vulnerability is resolved. The vulnerability serves as a reminder of the importance of regular security updates and proper input validation practices in web application development, particularly for security tools that handle sensitive operational data.