CVE-2014-1989 in Garoon
Summary
by MITRE
Cybozu Garoon 3.0 through 3.7 SP3 allows remote authenticated users to bypass intended access restrictions and delete schedule information via unspecified API calls.
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Analysis
by VulDB Data Team • 05/12/2026
The vulnerability identified as CVE-2014-1989 affects Cybozu Garoon versions 3.0 through 3.7 SP3, representing a critical access control flaw that undermines the security model of this enterprise collaboration platform. This issue manifests as an authorization bypass that permits authenticated users to perform unauthorized deletion operations on schedule information through unspecified API endpoints. The vulnerability resides in the application's insufficient validation of user permissions and access controls within its web services interface, creating a pathway for malicious actors who have legitimate login credentials to escalate their privileges beyond intended boundaries.
The technical implementation of this vulnerability stems from inadequate input validation and permission checking mechanisms within the API layer of Garoon's architecture. When authenticated users make specific API calls to schedule management functions, the system fails to properly verify whether the requesting user possesses the necessary administrative or ownership privileges to delete schedule entries. This weakness allows attackers to manipulate API parameters or invoke specific endpoints that should be restricted to authorized administrators or schedule owners. The vulnerability can be classified under CWE-285, which addresses improper authorization issues in software systems, and aligns with ATT&CK technique T1078 for valid accounts and T1485 for data destruction through unauthorized access to system resources.
The operational impact of this vulnerability extends beyond simple data loss, as schedule information in enterprise environments often contains sensitive business data, meeting arrangements, and resource allocation details that are critical to organizational operations. An attacker exploiting this vulnerability could potentially disrupt business continuity by deleting important calendar entries, interfering with scheduled meetings, or destroying historical scheduling data that may be required for compliance or audit purposes. The unauthorized deletion capability represents a significant threat to data integrity and can cause cascading effects throughout an organization's planning and coordination processes. This vulnerability particularly affects organizations that rely heavily on calendar-based scheduling for critical business operations, making it a prime target for both insider threats and compromised accounts.
Mitigation strategies for CVE-2014-1989 should focus on implementing robust access control measures and strengthening API security within the Garoon environment. Organizations should immediately apply the vendor-provided patches or updates that address the authorization bypass issue in affected versions. Network segmentation and API gateway implementations can help limit the attack surface by restricting direct access to sensitive API endpoints. Additionally, implementing comprehensive logging and monitoring of API calls can help detect anomalous deletion activities that may indicate exploitation attempts. The security posture should include regular privilege reviews to ensure users only possess necessary access rights, and implementing principle of least privilege controls specifically for schedule management functions. Organizations should also consider deploying intrusion detection systems that can identify suspicious API usage patterns and establish automated alerts for unauthorized deletion operations to provide early warning capabilities against potential exploitation of this vulnerability.