CVE-2024-30146 is a medium-severity vulnerability identified in HCL Software's HCL Domino Leap product, specifically affecting versions 1.1.3 through 1.1.4. The vulnerability stems from improper access control (CWE-284) on an endpoint that allows certain administrative users to import applications directly from the server's filesystem. This flaw means that authorized admin users can potentially import applications beyond intended restrictions, which could lead to unauthorized code or data being introduced into the environment. The vulnerability requires high privileges (admin-level access) and does not require user interaction, but it is exploitable remotely (network attack vector). The CVSS 3.1 base score of 4.1 reflects a medium severity, with low impacts on confidentiality, integrity, and availability, given the limited scope of exploitation and the requirement for privileged access. No known exploits are currently reported in the wild, and no patches have been explicitly linked yet. The improper access control could allow an attacker with admin credentials to bypass intended security policies around application imports, potentially leading to unauthorized modifications or introduction of malicious applications within the HCL Domino Leap environment. However, the impact is somewhat mitigated by the prerequisite of administrative privileges and the complexity of exploitation due to access control hurdles.

For European organizations using HCL Domino Leap, this vulnerability poses a moderate risk primarily to environments where administrative access is shared or insufficiently controlled. If exploited, it could allow malicious or careless administrators to import unauthorized applications, potentially leading to data integrity issues or introduction of malicious code. This could disrupt business processes relying on Domino Leap applications or expose sensitive data if the imported applications have elevated privileges or access to confidential information. The impact on confidentiality, integrity, and availability is limited but non-negligible, especially in sectors with strict compliance requirements such as finance, healthcare, and government. Since exploitation requires admin privileges, the threat is more about insider misuse or compromised admin accounts rather than external attackers without credentials. European organizations with complex Domino Leap deployments or weak administrative controls may face increased risk. Additionally, the lack of a patch at the time of disclosure means organizations must rely on compensating controls until updates are available.

1. Restrict and tightly control administrative access to HCL Domino Leap, ensuring only trusted personnel have admin privileges. 2. Implement strong authentication mechanisms for admin accounts, such as multi-factor authentication (MFA), to reduce risk of credential compromise. 3. Monitor and audit all application import activities within Domino Leap to detect any unauthorized or suspicious imports promptly. 4. Employ network segmentation and access controls to limit exposure of the Domino Leap server to only necessary administrative networks. 5. Until an official patch is released, consider disabling or restricting the vulnerable import endpoint if feasible, or apply application-layer firewalls or WAF rules to block unauthorized access. 6. Educate administrators on the risks of importing unverified applications and enforce strict policies on application sourcing and validation. 7. Keep abreast of vendor advisories for patches or updates addressing this vulnerability and plan timely deployment once available.