JeecgBoot Missing Authorization in SystemApiController

Executive Summary

JeecgBoot through version 3.9.5 has a missing authorization vulnerability in the SystemApiController's sendBusAnnouncement handler. This flaw allows any authenticated user, even with low privileges, to send system-wide announcements without proper permissions. Attackers can craft malicious HTTP POST requests to /sys/api/sendBusAnnouncement with forged sender details, recipient lists, titles, and content to deliver spoofed messages that appear to come from administrators or the system itself.

Useful 0 Not Useful 0

Detection Guidance

Check for unauthorized POST requests to /sys/api/sendBusAnnouncement with crafted payloads. Monitor logs for suspicious announcement messages from low-privileged users. Inspect network traffic for repeated or unusual requests to this endpoint.

Useful 0 Not Useful 0

Impact Analysis

This vulnerability enables phishing attacks where attackers impersonate system administrators or the system itself to trick users into revealing sensitive information, downloading malware, or performing unauthorized actions. Users may trust these spoofed messages due to their appearance of legitimacy, potentially leading to data breaches, financial loss, or compromised accounts.

Useful 0 Not Useful 0

Compliance Impact

This vulnerability could lead to violations of GDPR (data protection) and HIPAA (health information privacy) by enabling unauthorized access to sensitive data through phishing attacks. Organizations may fail to protect personal data adequately, resulting in regulatory fines, reputational damage, and loss of trust. Compliance requires preventing such unauthorized message delivery mechanisms.

Useful 0 Not Useful 0

Mitigation Strategies

Apply the latest JeecgBoot patch to fix the missing authorization issue. Restrict access to /sys/api/sendBusAnnouncement by updating firewall rules or API gateways. Review and remove any unauthorized announcements sent via this endpoint.

Useful 0 Not Useful 0