CVE-2014-4930 in EventLog Analyzer
Summary
by MITRE
Multiple cross-site scripting (XSS) vulnerabilities in event/index2.do in ManageEngine EventLog Analyzer before 9.0 build 9002 allow remote attackers to inject arbitrary web script or HTML via the (1) width, (2) height, (3) url, (4) helpP, (5) tab, (6) module, (7) completeData, (8) RBBNAME, (9) TC, (10) rtype, (11) eventCriteria, (12) q, (13) flushCache, or (14) product parameter.
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Analysis
by VulDB Data Team • 03/28/2022
The vulnerability identified as CVE-2014-4930 represents a critical cross-site scripting weakness in ManageEngine EventLog Analyzer version 9.0 build 9001 and earlier. This flaw exists within the event/index2.do web application component and affects multiple input parameters that are processed without adequate sanitization or validation. The vulnerability falls under the CWE-79 category of Cross-Site Scripting, specifically classified as reflected XSS, where malicious scripts are injected into web pages viewed by other users. The affected parameters include width, height, url, helpP, tab, module, completeData, RBBNAME, TC, rtype, eventCriteria, q, flushCache, and product, all of which are passed directly to the application without proper input filtering mechanisms.
The technical implementation of this vulnerability stems from insufficient validation of user-supplied input data within the web application's request handling process. When users provide values for any of the listed parameters, these inputs are directly incorporated into the application's response without proper sanitization or encoding. This allows attackers to craft malicious payloads that execute within the context of other users' browsers, potentially leading to session hijacking, credential theft, or unauthorized actions. The vulnerability operates at the application layer and requires no authentication to exploit, making it particularly dangerous in environments where the application is accessible to unauthenticated users. From an attack perspective, this vulnerability aligns with ATT&CK technique T1566.001 for initial access through spearphishing attachments and T1059.001 for command and control through scripting.
The operational impact of this vulnerability extends beyond simple script execution, as it can enable attackers to perform sophisticated attacks against the application's user base. An attacker could craft malicious URLs containing XSS payloads that, when clicked by an authenticated user, would execute malicious scripts in their browser context. This could lead to session fixation, data exfiltration, or even privilege escalation if the affected user possesses administrative rights. The vulnerability affects the web application's security posture by undermining the trust relationship between the application and its users, potentially allowing attackers to impersonate legitimate users and access sensitive data or perform unauthorized operations. Organizations using ManageEngine EventLog Analyzer versions prior to build 9002 face significant risk exposure, particularly in environments where the application processes sensitive log data and user information.
Mitigation strategies for this vulnerability include immediate patching to version 9.0 build 9002 or later, which addresses the input validation issues. Organizations should also implement proper input sanitization and output encoding mechanisms to prevent similar issues in the future. Web application firewalls can provide additional protection by filtering malicious payloads before they reach the application. Security monitoring should be enhanced to detect unusual patterns in the affected parameters, and regular security assessments should be conducted to identify other potential injection points. The vulnerability demonstrates the importance of comprehensive input validation and the principle of least privilege in web application security, as proper implementation of these controls would have prevented the exploitation of this flaw. Organizations should also consider implementing content security policies to further limit the impact of potential XSS attacks.