CVE-2019-25095 in LdapCherry
Summary
by MITRE • 01/09/2023
A vulnerability, which was classified as problematic, was found in kakwa LdapCherry up to 0.x. Affected is an unknown function of the component URL Handler. The manipulation leads to cross site scripting. It is possible to launch the attack remotely. Upgrading to version 1.0.0 is able to address this issue. The name of the patch is 6f98076281e9452fdb1adcd1bcbb70a6f968ade9. It is recommended to upgrade the affected component. VDB-217434 is the identifier assigned to this vulnerability.
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Analysis
by VulDB Data Team • 01/28/2023
The vulnerability identified as CVE-2019-25095 represents a cross site scripting flaw within the kakwa LdapCherry web application, specifically affecting versions prior to 1.0.0. This issue resides within the URL Handler component, which processes incoming web requests and handles URL parsing operations. The vulnerability classification as problematic indicates significant security implications, as XSS flaws can enable attackers to execute malicious scripts in the context of a victim's browser session, potentially leading to session hijacking, data theft, or privilege escalation. The affected function operates within the web application's request processing pipeline, where untrusted input from URL parameters is not properly sanitized or validated before being rendered in web responses.
The technical exploitation of this vulnerability occurs through remote attack vectors, meaning malicious actors can trigger the XSS payload without requiring physical access to the target system. The flaw manifests when user-supplied URL parameters containing malicious script code are processed by the URL Handler component and subsequently displayed to other users within the web application interface. This allows attackers to inject malicious JavaScript code that executes in the context of legitimate user sessions, potentially compromising user accounts and accessing sensitive information. The vulnerability follows the typical XSS attack pattern where input validation is insufficient, allowing script code to bypass security controls and execute within the victim's browser environment. The vulnerability can be categorized under CWE-79 as "Improper Neutralization of Input During Web Page Generation" and aligns with ATT&CK technique T1059.007 for "Command and Scripting Interpreter: JavaScript" in lateral movement and privilege escalation scenarios.
The operational impact of this vulnerability extends beyond simple script injection, as it can enable attackers to perform session hijacking, steal authentication tokens, access user data, and potentially escalate privileges within the application. When users interact with maliciously crafted URLs, the injected JavaScript code executes in their browser context, allowing attackers to monitor user activities, capture session cookies, and perform actions on behalf of legitimate users. The vulnerability affects the web application's integrity and user trust, as it enables unauthorized access to user data and application functionality. Organizations using affected versions of LdapCherry face risks of data breaches, credential theft, and potential system compromise. The vulnerability's remote exploitability means that attackers can target users through email links, social media, or other web-based attack vectors without requiring direct system access. The recommended remediation involves upgrading to version 1.0.0 or later, which incorporates proper input validation and output encoding mechanisms to prevent malicious script code from being executed. This upgrade addresses the root cause by implementing proper sanitization of URL parameters and ensuring that all user-supplied input is properly escaped before being rendered in web responses, thereby preventing XSS exploitation.