CVE-2018-1328 in Zeppelin
Summary
by MITRE
Apache Zeppelin prior to 0.8.0 had a stored XSS issue via Note permissions. Issue reported by "Josna Joseph".
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Analysis
by VulDB Data Team • 09/06/2023
Apache Zeppelin version 0.8.0 and earlier contained a critical stored cross-site scripting vulnerability that emerged from improper input validation within the note permissions functionality. This vulnerability allowed authenticated attackers to inject malicious scripts into note permission settings that would execute in the context of other users' browsers when they accessed affected notes. The flaw specifically manifested when users with appropriate privileges configured note permissions, as the application failed to properly sanitize user-supplied input before storing and rendering it within the web interface. The vulnerability was classified as a stored XSS issue because the malicious payload persisted in the application's database and executed automatically whenever affected users interacted with the compromised note permissions. This weakness directly relates to CWE-79 which defines cross-site scripting vulnerabilities as the failure to properly encode output data, and aligns with ATT&CK technique T1059.005 for command and scripting interpreter. The security implications were severe as attackers could leverage this vulnerability to steal session cookies, perform unauthorized actions on behalf of other users, or redirect victims to malicious websites. The vulnerability was particularly dangerous because it required minimal privileges to exploit and could be triggered by any user with permission to modify note settings.
The technical exploitation of this vulnerability involved crafting malicious input within note permission fields that would be stored and subsequently rendered without proper sanitization. When legitimate users accessed the affected notes, their browsers would execute the injected scripts within the context of their authenticated sessions, potentially leading to complete account compromise. The attack vector was particularly insidious because it leveraged the trust relationship between the application and its users, making detection more difficult. The vulnerability was present in the note management interface where users could assign permissions to different users or groups, and the application's failure to validate or escape input data created an opening for malicious actors to inject JavaScript code. This flaw was consistent with ATT&CK tactic T1566 which involves social engineering techniques that manipulate users into executing malicious code, and CWE-79's classification of output encoding failures. The impact extended beyond simple script execution as attackers could potentially use the compromised sessions to access other system resources or escalate privileges within the application.
Organizations using Apache Zeppelin versions prior to 0.8.0 faced significant security risks due to this vulnerability, as it could be exploited by both internal and external attackers who gained access to legitimate user accounts. The stored nature of the vulnerability meant that even after the initial attack, the malicious scripts would continue to execute whenever affected users accessed the compromised notes, creating a persistent threat. Security teams needed to implement immediate mitigations including upgrading to version 0.8.0 or later, which contained proper input validation and sanitization measures. Additional defensive measures included implementing web application firewalls to detect and block suspicious input patterns, conducting regular security audits of note permissions, and educating users about the dangers of modifying note settings with untrusted input. The vulnerability highlighted the importance of proper input validation and output encoding in web applications, particularly in collaborative environments where multiple users interact with shared resources. Organizations should have also implemented monitoring for unusual permission changes and established incident response procedures to quickly address potential exploitation attempts. This vulnerability served as a reminder of the critical need for comprehensive security testing including dynamic analysis and input validation reviews as part of the software development lifecycle.