CVE-2016-1214 in Garoon
Summary
by MITRE
Cross-site scripting (XSS) vulnerability in the "Response request" function in Cybozu Garoon before 4.2.2.
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Analysis
by VulDB Data Team • 12/21/2020
The vulnerability identified as CVE-2016-1214 represents a cross-site scripting flaw within the Cybozu Garoon collaboration platform, specifically affecting versions prior to 4.2.2. This issue resides in the "Response request" function, which is a core component designed to facilitate user interactions and workflow management within the enterprise environment. The vulnerability stems from insufficient input validation and output encoding mechanisms that fail to properly sanitize user-supplied data before rendering it within the web application's response context.
The technical exploitation of this vulnerability occurs when an attacker crafts malicious input within the response request functionality and submits it to a vulnerable Garoon instance. The application processes this input without adequate sanitization measures, allowing malicious script code to be injected into the response page. When other users view the affected response request, the embedded malicious code executes within their browser context, potentially enabling attackers to steal session cookies, perform unauthorized actions on behalf of users, or redirect them to malicious websites. This vulnerability specifically aligns with CWE-79, which categorizes cross-site scripting as a code injection flaw where untrusted data is improperly incorporated into web pages without proper validation or encoding.
The operational impact of this vulnerability extends beyond simple data theft, as it can serve as a stepping stone for more sophisticated attacks within enterprise networks. Attackers can leverage this vulnerability to establish persistent access to corporate collaboration environments, potentially compromising sensitive business data and communication channels. The attack surface is particularly concerning given that Garoon is designed for enterprise use, meaning successful exploitation could affect multiple users within an organization simultaneously. This type of vulnerability also aligns with ATT&CK technique T1566, which describes social engineering attacks that can be facilitated through web-based exploitation of application vulnerabilities.
Organizations utilizing affected versions of Cybozu Garoon should prioritize immediate remediation through the official 4.2.2 update release, which includes proper input validation and output encoding mechanisms. Security teams should also implement network-based mitigations such as web application firewalls that can detect and block malicious script injection attempts. Additionally, regular security assessments of collaboration platforms and user education regarding suspicious web interactions can help reduce the risk of exploitation. The vulnerability demonstrates the critical importance of maintaining up-to-date enterprise software and implementing proper input validation controls across all web application components to prevent similar issues from compromising organizational security posture.