CVE-2016-1150 in Office
Summary
by MITRE
Cross-site scripting (XSS) vulnerability in Cybozu Office 9.0.0 through 10.3.0 allows remote attackers to inject arbitrary web script or HTML via unspecified vectors, a different vulnerability than CVE-2015-7795, CVE-2015-7796, CVE-2015-7797, CVE-2015-7798, and CVE-2016-1149.
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Analysis
by VulDB Data Team • 07/30/2018
The CVE-2016-1150 vulnerability represents a critical cross-site scripting flaw discovered in Cybozu Office versions 9.0.0 through 10.3.0, exposing organizations to significant web application security risks. This vulnerability falls under the broader category of CWE-79 Improper Neutralization of Input During Web Page Generation, which is a fundamental weakness in web application security that allows malicious actors to inject client-side scripts into web pages viewed by other users. The vulnerability specifically affects the web interface components of Cybozu Office, a collaborative business platform that includes features such as document management, workflow automation, and team collaboration tools.
The technical exploitation of this XSS vulnerability occurs through unspecified vectors within the application's input handling mechanisms, allowing remote attackers to inject arbitrary web scripts or HTML content without requiring authentication or privileged access. Unlike related vulnerabilities CVE-2015-7795 through CVE-2016-1149, which targeted different aspects of the application's security model, CVE-2016-1150 operates through distinct attack pathways that bypass standard input validation controls. The vulnerability's impact extends beyond simple script injection, as it can enable attackers to steal session cookies, perform unauthorized actions on behalf of users, manipulate application data, or redirect users to malicious websites.
From an operational perspective, this vulnerability poses severe risks to organizations utilizing Cybozu Office, particularly those handling sensitive business data or requiring secure collaboration environments. The remote nature of the attack means that threat actors can exploit this weakness from anywhere on the internet without requiring physical access to the network or application servers. Successful exploitation could lead to complete compromise of user sessions, data exfiltration, and potential lateral movement within the network. The vulnerability's presence in multiple versions of the software indicates a persistent flaw in the application's security architecture that required ongoing patching efforts to address.
Organizations should implement comprehensive mitigation strategies including immediate deployment of vendor-provided security patches, enhanced input validation mechanisms, and regular security assessments of their web applications. The vulnerability demonstrates the importance of maintaining up-to-date security controls and the necessity of implementing defense-in-depth strategies that include web application firewalls, content security policies, and regular security testing. According to ATT&CK framework category T1059.008 Command and Scripting Interpreter: PowerShell, this vulnerability could be leveraged to establish persistent access through malicious script delivery, while T1566.001 Phishing: Spearphishing Attachment represents the common attack vector used to initially compromise systems. Organizations should also consider implementing automated vulnerability scanning tools to identify similar weaknesses in their broader application portfolio and ensure that all web-facing applications undergo regular security validation processes to prevent exploitation of similar XSS vulnerabilities.