CVE-2018-12656 in SLiMS 8 Akasia
Summary
by MITRE
Reflected Cross-Site Scripting (XSS) exists in the Membership module in SLiMS 8 Akasia 8.3.1 via an admin/modules/membership/index.php?keywords= URI.
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Analysis
by VulDB Data Team • 03/28/2023
The vulnerability CVE-2018-12656 represents a reflected cross-site scripting flaw within the Membership module of SLiMS 8 Akasia version 8.3.1. This security weakness resides in the administrative interface at the specific URI path admin/modules/membership/index.php?keywords=. The vulnerability arises when user-supplied input passed through the keywords parameter is not properly sanitized or encoded before being reflected back to the user's browser. This creates an opportunity for malicious actors to inject arbitrary JavaScript code that executes in the context of the victim's browser session.
The technical implementation of this vulnerability follows the standard reflected XSS pattern where the application takes user input directly from the HTTP request and incorporates it into dynamically generated web pages without adequate output encoding or validation. When an attacker crafts a malicious URL containing script payloads in the keywords parameter and tricks a victim administrator into clicking it, the malicious code executes within the administrator's browser context. This allows for session hijacking, credential theft, and potential privilege escalation attacks since the victim is an administrator with elevated permissions within the SLiMS system.
From an operational impact perspective, this vulnerability poses significant risks to the integrity and confidentiality of library management systems that rely on SLiMS 8 Akasia. An attacker who successfully exploits this vulnerability can gain administrative access to the membership module, potentially leading to unauthorized modification of member records, data exfiltration, or even complete system compromise. The reflected nature of this XSS means that the attack vector is relatively straightforward and can be delivered through phishing emails, malicious links in chat systems, or social engineering campaigns targeting library administrators who maintain the SLiMS system.
The vulnerability aligns with CWE-79 which defines Cross-Site Scripting as a weakness where untrusted data is incorporated into web page content without proper validation or encoding. This weakness is categorized under the broader class of injection flaws that can lead to various security consequences including session manipulation and data theft. According to ATT&CK framework, this vulnerability maps to T1059.001 for command and scripting interpreter with the specific technique of using JavaScript to execute malicious code. The attack chain typically involves initial access through a crafted URL, followed by execution of malicious scripts that can persist in the victim's browser session.
Mitigation strategies for CVE-2018-12656 should focus on implementing proper input validation and output encoding mechanisms throughout the application. The most effective immediate solution involves sanitizing all user-supplied input parameters, particularly those used in URL query strings, by implementing strict validation rules and encoding output before rendering. The system should employ context-specific output encoding, particularly HTML entity encoding for data reflected in web page content. Additionally, implementing Content Security Policy headers can provide an additional layer of protection against XSS attacks by restricting the sources from which scripts can be executed. Organizations should also ensure that all SLiMS installations are updated to versions that have addressed this vulnerability through proper code patches and input sanitization measures. Regular security audits and penetration testing should be conducted to identify similar vulnerabilities in other components of the system, as reflected XSS vulnerabilities often occur in multiple locations within web applications.