CVE-2017-15216 in MIPS
Summary
by MITRE
MISP before 2.4.81 has a potential reflected XSS in a quickDelete action that is used to delete a sighting, related to app/View/Sightings/ajax/quickDeleteConfirmationForm.ctp and app/webroot/js/misp.js.
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Analysis
by VulDB Data Team • 01/03/2023
The vulnerability CVE-2017-15216 represents a reflected cross-site scripting flaw within the MISP (Malware Information Sharing Platform) software ecosystem. This issue affects versions prior to 2.4.81 and specifically targets the quickDelete action functionality used for removing sightings from the platform. The vulnerability manifests in the web application's handling of user input within the sighting deletion process, creating an avenue for malicious actors to inject harmful scripts into the application's response. The affected components include the view template file app/View/Sightings/ajax/quickDeleteConfirmationForm.ctp and the javascript file app/webroot/js/misp.js, which together form the user interface elements responsible for the deletion confirmation process.
The technical exploitation of this vulnerability occurs when a malicious user crafts a specially crafted URL containing malicious script code and sends it to a victim who is authenticated to the MISP instance. When the victim clicks the link or navigates to the crafted URL, the malicious script executes within the victim's browser context, leveraging the reflected nature of the vulnerability where the script is reflected back from the server to the user agent. This type of vulnerability falls under CWE-79 which categorizes cross-site scripting flaws, specifically the reflected XSS variant where input data is immediately reflected back without proper sanitization. The vulnerability is particularly dangerous in the context of security platforms like MISP where users handle sensitive threat intelligence data, as it could allow attackers to steal session cookies, perform unauthorized actions on behalf of users, or redirect victims to malicious sites.
The operational impact of CVE-2017-15216 extends beyond simple script execution as it represents a critical threat to the integrity and confidentiality of security operations within organizations using MISP. An attacker exploiting this vulnerability could potentially gain unauthorized access to threat intelligence data, manipulate sighting records, or execute malicious code on behalf of legitimate users. This compromises the trust model of the security platform and could lead to the compromise of the entire threat intelligence sharing ecosystem. The vulnerability is particularly concerning given that MISP is widely used by security teams, law enforcement agencies, and organizations for sharing cyber threat intelligence, making it a prime target for adversaries seeking to disrupt security operations or gain access to sensitive threat data. The reflected nature of the vulnerability means that exploitation can be achieved through social engineering techniques such as phishing campaigns or by embedding malicious links in compromised websites.
Mitigation strategies for CVE-2017-15216 should prioritize immediate remediation through upgrading to MISP version 2.4.81 or later, which includes proper input sanitization and output encoding mechanisms. Organizations should also implement comprehensive web application firewalls that can detect and block reflected XSS attempts, while ensuring that all user-supplied input undergoes proper validation and encoding before being processed or displayed. The implementation of Content Security Policy headers can provide an additional layer of protection against script injection attempts, though this should not be considered a replacement for proper input validation. Security teams should also conduct regular security assessments of their MISP installations, monitor for suspicious activity patterns, and ensure that all users are educated about the risks of clicking untrusted links. From an ATT&CK framework perspective, this vulnerability aligns with techniques such as T1059.007 for scripting and T1566 for social engineering, making it important for organizations to maintain robust defenses against both technical and social engineering attack vectors.