CVE-2018-13323 in TS5600D1206
Summary
by MITRE
Cross-site scripting in detail.html in Buffalo TS5600D1206 version 3.61-0.10 allows attackers to execute JavaScript via the "username" cookie.
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Analysis
by VulDB Data Team • 04/14/2020
The vulnerability identified as CVE-2018-13323 represents a critical cross-site scripting flaw located within the Buffalo TS5600D1206 network attached storage device running firmware version 3.61-0.10. This specific vulnerability manifests in the detail.html web interface component where user input from the "username" cookie is not properly sanitized or validated before being rendered back to the user. The issue stems from insufficient input validation mechanisms that fail to neutralize malicious script content injected through the cookie parameter, creating an avenue for attackers to execute arbitrary JavaScript code within the context of a victim's browser session.
The technical exploitation of this vulnerability follows a classic XSS attack pattern where an attacker crafts a malicious cookie value containing JavaScript payload that gets stored and subsequently executed when the victim's browser processes the detail.html page. This flaw falls under CWE-79 which categorizes cross-site scripting vulnerabilities as a result of improper validation or sanitization of user-supplied data. The vulnerability exists because the application does not implement proper output encoding or sanitization techniques when incorporating cookie values into the web page content, allowing attacker-controlled input to be interpreted as executable script rather than static data.
The operational impact of this vulnerability is significant as it provides attackers with the capability to hijack user sessions, steal sensitive authentication credentials, and potentially gain unauthorized access to the network attached storage system. An attacker could leverage this vulnerability to execute malicious scripts that could redirect users to phishing sites, steal session cookies, or even perform actions on behalf of authenticated users. The attack requires minimal privileges since it targets a web interface component accessible to unauthenticated users, making it particularly dangerous in environments where the storage device is exposed to external networks or where users may interact with it from untrusted locations.
Mitigation strategies for this vulnerability should focus on implementing comprehensive input validation and output encoding mechanisms throughout the application. The most effective remediation involves sanitizing all user-supplied input including cookie values before rendering them in web pages, implementing proper content security policies to restrict script execution, and ensuring that all web application components follow secure coding practices. Organizations should also consider implementing network segmentation to limit exposure of such devices to untrusted networks, regularly updating firmware to address known vulnerabilities, and conducting thorough security assessments of network attached storage systems. This vulnerability aligns with ATT&CK technique T1059.007 which covers scripting languages and T1566 which covers credential harvesting through social engineering, highlighting the potential for both automated exploitation and manual attack vectors that could compromise user accounts and system integrity.