CVE-2017-8302 in Mura
Summary
by MITRE
Mura CMS 7.0.6967 allows admin/?muraAction= XSS attacks, related to admin/core/views/carch/list.cfm, admin/core/views/carch/loadsiteflat.cfm, admin/core/views/cusers/inc/dsp_nextn.cfm, admin/core/views/cusers/inc/dsp_search_form.cfm, admin/core/views/cusers/inc/dsp_users_list.cfm, admin/core/views/cusers/list.cfm, and admin/core/views/cusers/listusers.cfm.
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Analysis
by VulDB Data Team • 12/02/2022
The CVE-2017-8302 vulnerability represents a critical cross-site scripting flaw in Mura CMS version 7.0.6967 that specifically targets administrative interfaces. This vulnerability stems from inadequate input validation and output encoding mechanisms within multiple administrative view files, creating persistent attack vectors for malicious actors seeking to compromise the content management system. The affected files include core administrative templates such as list.cfm, loadsiteflat.cfm, and various user management components, indicating a systemic weakness in the application's security architecture that affects multiple administrative functions.
The technical implementation of this vulnerability occurs when user-supplied data is directly rendered in administrative interfaces without proper sanitization or encoding. Attackers can inject malicious scripts through parameters that are processed by these specific .cfm files, which are written in ColdFusion markup language. The flaw allows for persistent XSS attacks where malicious payloads can be executed in the context of administrative sessions, potentially enabling full system compromise. This vulnerability specifically targets the administrative user interface components that handle content architecture and user management operations, making it particularly dangerous as it could allow attackers to escalate privileges or manipulate core system functionality.
The operational impact of CVE-2017-8302 extends beyond simple data theft or defacement, as it provides attackers with elevated privileges within the Mura CMS administrative environment. Successful exploitation could enable attackers to modify content, manipulate user accounts, access sensitive system information, or even gain complete control over the CMS installation. The vulnerability affects multiple administrative functions including content architecture management and user administration, creating a broad attack surface that could be leveraged for various malicious activities. Organizations using Mura CMS 7.0.6967 are particularly at risk as this vulnerability could be exploited by attackers with minimal technical expertise.
Security mitigation strategies for CVE-2017-8302 should prioritize immediate patching of the Mura CMS installation to the latest available version that addresses this specific vulnerability. Organizations should implement comprehensive input validation and output encoding mechanisms across all administrative interfaces, following established security practices such as those outlined in the OWASP Top Ten and CWE guidelines. The vulnerability aligns with CWE-79 which categorizes cross-site scripting flaws, and can be mapped to ATT&CK technique T1190 for exploitation of vulnerabilities in web applications. Additionally, implementing web application firewalls, regular security assessments, and mandatory security training for administrators can significantly reduce the risk of exploitation. Organizations should also conduct thorough penetration testing to identify similar vulnerabilities in other administrative components and ensure proper security hardening of all CMS interfaces.