CVE-2022-29089 is an information disclosure vulnerability identified in Dell Networking OS10, specifically in versions released prior to October 2021 that have Smart Fabric Services enabled. The vulnerability is categorized under CWE-522, which relates to insufficiently protected credentials. An unauthenticated remote attacker can exploit this flaw by reverse engineering the system to extract sensitive information, including credentials that grant administrative access to the REST API. This access could allow the attacker to perform unauthorized administrative actions on the network device. The vulnerability has a CVSS 3.1 base score of 6.4, indicating a medium severity level. The vector string (CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:H) shows that the attack requires adjacent network access (AV:A), high attack complexity (AC:H), no privileges required (PR:N), and no user interaction (UI:N). The impact includes low confidentiality and integrity impacts but a high impact on availability, suggesting that exploitation could disrupt network services. No known exploits are currently reported in the wild, and no patches are explicitly linked in the provided data, though it is implied that versions after October 2021 address the issue. The vulnerability primarily affects network infrastructure devices running Dell Networking OS10 with Smart Fabric Services enabled, which are critical components in enterprise and data center environments.

For European organizations, this vulnerability poses a significant risk to network infrastructure security. Dell Networking OS10 is used in various enterprise and service provider networks across Europe, especially in data centers and large-scale network deployments. Exploitation could lead to unauthorized administrative control over network devices, enabling attackers to disrupt network availability, manipulate traffic, or exfiltrate sensitive data. The high impact on availability could result in network outages affecting business continuity and critical services. The low confidentiality and integrity impacts still represent a risk, as credential disclosure can facilitate further attacks or lateral movement within networks. Given the adjacency requirement, attackers would need access to the local network segment, which could be achieved through compromised internal hosts or insider threats. European organizations with complex network environments and Smart Fabric Services enabled are particularly at risk, especially those in sectors such as finance, telecommunications, and critical infrastructure where network reliability and security are paramount.

Organizations should first identify all Dell Networking OS10 devices in their environment and verify the firmware versions and Smart Fabric Services configuration. Immediate mitigation includes upgrading affected devices to versions released after October 2021 where this vulnerability is addressed. If upgrading is not immediately feasible, disabling Smart Fabric Services can reduce exposure. Network segmentation should be enforced to limit access to management interfaces and REST APIs to trusted administrators only, ideally through dedicated management VLANs or out-of-band management networks. Implement strict access controls and monitoring on network segments where these devices reside to detect any anomalous activity. Additionally, employ network intrusion detection systems (NIDS) capable of identifying suspicious REST API access patterns. Regularly audit device configurations and credentials, and rotate administrative credentials to minimize the risk of credential compromise. Finally, maintain close communication with Dell for any patches or advisories and apply them promptly.