CVE-2017-8801 in OfficeScan
Summary
by MITRE
Trend Micro OfficeScan 11.0 before SP1 CP 6325 (with Agent Module Build before 6152) and XG before CP 1352 has XSS via a crafted URI using a blocked website.
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Analysis
by VulDB Data Team • 09/24/2020
The vulnerability identified as CVE-2017-8801 affects Trend Micro OfficeScan versions prior to SP1 CP 6325, specifically when the Agent Module Build is earlier than 6152, and also impacts XG versions before CP 1352. This issue represents a cross-site scripting vulnerability that arises from improper input validation within the web interface of these security products. The flaw enables attackers to inject malicious scripts through crafted URIs that reference blocked websites, exploiting the application's failure to adequately sanitize user-supplied input before rendering it in web responses.
The technical implementation of this vulnerability stems from the application's handling of URI parameters when processing blocked website references within its web interface. When a user navigates to a maliciously crafted URI containing specially constructed parameters, the system fails to properly escape or filter the input before displaying it to the user. This oversight allows attackers to inject JavaScript code that executes within the context of the victim's browser session, potentially enabling session hijacking, credential theft, or redirection to malicious sites. The vulnerability specifically manifests when the application displays information about blocked websites without adequate sanitization of the URI components, creating an environment where attacker-controlled data can be interpreted as executable code.
The operational impact of this vulnerability extends beyond simple script execution, as it can be leveraged to compromise the security posture of organizations relying on Trend Micro OfficeScan for endpoint protection. An attacker who successfully exploits this vulnerability could potentially escalate privileges within the context of the web interface, access sensitive administrative functions, or redirect users to phishing sites designed to harvest credentials. The vulnerability affects both the OfficeScan server and XG appliances, making it particularly concerning for organizations with large distributed security infrastructures. The attack vector requires user interaction through a malicious URI, but once triggered, the consequences can be severe as the exploitation occurs within the context of a legitimate security product interface.
Organizations should immediately apply the relevant security patches provided by Trend Micro to address this vulnerability, specifically targeting the SP1 CP 6325 update for OfficeScan and CP 1352 for XG appliances. Network segmentation and access controls should be implemented to limit exposure of the affected systems to untrusted users, while web application firewalls can provide additional protection against malicious URI patterns. Security monitoring should include detection of suspicious URI parameters and unusual access patterns to the OfficeScan web interface, as these may indicate exploitation attempts. The vulnerability aligns with CWE-79 Cross-site Scripting and follows patterns consistent with ATT&CK technique T1059.007 Command and Scripting Interpreter: JavaScript, highlighting the importance of input validation and output encoding in web applications. Regular security assessments and vulnerability scanning should be conducted to identify similar issues in other components of the security infrastructure, as this vulnerability demonstrates the critical need for proper sanitization of all user-supplied data in web-based security applications.