CVE-2024-22430 is a vulnerability identified in Dell PowerScale OneFS, specifically affecting versions 8.2.x through 9.6.1.0. The issue is categorized under CWE-276, which relates to incorrect default permissions. In this case, the vulnerability arises because certain files or resources within the OneFS system are configured with overly permissive default permissions. This misconfiguration allows a local user with low privileges to exploit the system by leveraging these incorrect permissions. The exploitation does not require user interaction and can lead to a denial of service (DoS) condition, impacting the availability of the affected system. The CVSS 3.1 base score is 5.5, indicating a medium severity level. The vector string CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H indicates that the attack vector is local, with low attack complexity, requiring low privileges, no user interaction, unchanged scope, no impact on confidentiality or integrity, but a high impact on availability. No known exploits are currently reported in the wild, and no patches have been linked yet, suggesting that organizations should be vigilant and monitor for updates from Dell. The vulnerability primarily affects local users, meaning remote exploitation is not feasible without prior access. The root cause is the incorrect default permissions, which could allow a malicious local user to disrupt system operations, potentially causing service outages or degraded performance in storage environments relying on PowerScale OneFS.

For European organizations using Dell PowerScale OneFS, this vulnerability poses a risk primarily to system availability. PowerScale OneFS is widely used in enterprise storage solutions, including in sectors such as finance, healthcare, telecommunications, and government agencies across Europe. A denial of service caused by a local low-privilege user could disrupt critical data storage and access, leading to operational downtime, loss of productivity, and potential compliance issues, especially under regulations like GDPR that require data availability and integrity. Although the vulnerability does not directly compromise confidentiality or integrity, the availability impact could cascade into broader business disruptions. Organizations with multi-tenant environments or shared access systems are particularly at risk if a low-privilege user can exploit this flaw. The absence of known exploits in the wild currently reduces immediate risk, but the medium severity rating and the critical nature of storage infrastructure mean that European organizations should proactively address this vulnerability to prevent potential insider threats or accidental misuse.

European organizations should implement the following specific mitigation steps: 1) Immediately audit and review the default permissions on Dell PowerScale OneFS systems to identify any overly permissive settings that could be exploited. 2) Restrict local user access to only those who require it, applying the principle of least privilege rigorously to minimize the pool of potential attackers. 3) Monitor system logs and user activities for unusual behavior indicative of exploitation attempts, focusing on local user actions that could trigger denial of service conditions. 4) Engage with Dell support channels to obtain official patches or configuration guidance as soon as they become available, and prioritize timely deployment of these updates. 5) Consider implementing additional access controls or segmentation within the storage environment to isolate critical systems from users with lower privileges. 6) Conduct regular security training for administrators and users with local access to raise awareness about the risks of improper permissions and insider threats. 7) If possible, deploy compensating controls such as intrusion detection systems or endpoint protection that can detect and respond to suspicious local activities targeting OneFS resources.