CVE-2024-36070 in tine
Summary
by MITRE • 05/19/2024
tine before 2023.11.8, when an LDAP backend is used, allows anonymous remote attackers to obtain sensitive authentication information via setup.php because of getRegistryData in Setup/Frontend/Json.php. (An update is also available for the 2022.11 series.)
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Analysis
by VulDB Data Team • 03/28/2025
The vulnerability identified as CVE-2024-36070 affects Tine 2.0 software versions prior to 2023.11.8 when configured with an LDAP backend. This represents a critical security flaw that exposes sensitive authentication information to unauthenticated remote attackers. The vulnerability stems from improper access control mechanisms within the application's setup process, specifically in how registry data is handled during the initial configuration phase. Attackers can exploit this weakness to extract authentication credentials and other sensitive information without requiring valid credentials or authentication tokens.
The technical implementation of this vulnerability occurs through the setup.php script which contains a flaw in the Setup/Frontend/Json.php component. When the application processes registry data during setup operations, it fails to properly validate or restrict access to sensitive information. This allows anonymous remote attackers to make requests to the setup endpoint and retrieve configuration data that should normally be protected. The vulnerability specifically leverages the getRegistryData function which is designed to provide internal system information but does not adequately enforce authorization checks. This misconfiguration creates an information disclosure channel that can be exploited by attackers to gain insights into the system's authentication mechanisms and backend configurations.
The operational impact of this vulnerability is significant as it provides attackers with access to sensitive authentication information that could be used for further exploitation or lateral movement within the network. The exposure of LDAP backend credentials and configuration details can enable attackers to impersonate legitimate users or gain access to additional systems that rely on the same authentication infrastructure. This vulnerability particularly affects organizations that depend on LDAP authentication for their Tine 2.0 deployments, as the leaked information could facilitate privilege escalation attacks or complete system compromise. The fact that this vulnerability affects the setup process means that even systems that are not actively being configured could be at risk if the setup endpoint remains accessible to unauthorized users.
Organizations using affected versions of Tine 2.0 should immediately apply the available security patches to address this vulnerability. The update specifically addresses the access control flaw in the Setup/Frontend/Json.php component and includes proper authentication checks for the getRegistryData function. System administrators should also review their network configurations to ensure that setup endpoints are not accessible from untrusted networks or the internet. Security monitoring should be enhanced to detect unusual access patterns to setup-related endpoints, and access controls should be implemented to restrict setup functionality to authorized administrators only. Additionally, organizations should conduct thorough security assessments of their LDAP configurations and authentication mechanisms to identify any potential exploitation that may have occurred before the patch was applied. This vulnerability aligns with CWE-284, which addresses improper access control, and could be mapped to ATT&CK technique T1078 for valid accounts and T1566 for credential access through information discovery.
The vulnerability demonstrates the critical importance of proper input validation and access control implementation in web applications, particularly during setup and configuration phases where sensitive information is typically exposed. Organizations should implement defense-in-depth strategies that include network segmentation, access control restrictions, and continuous monitoring to prevent unauthorized access to system configuration endpoints. Regular security updates and patch management processes are essential to protect against known vulnerabilities in third-party applications and prevent exploitation of similar flaws in other system components.