CVE-2022-22948

The vulnerability in vCenter Server arises from improper permissions assigned to files, leading to potential information disclosure. This flaw allows a malicious actor with non-administrative access to exploit the system and gain unauthorized access to sensitive data. The underlying issue stems from a misconfiguration in the access control mechanisms that govern file permissions, which should ideally restrict access to sensitive information based on user roles. The failure to enforce these restrictions adequately opens the door for exploitation, where an attacker could leverage their existing access to read files that should remain confidential.

Attack vectors for this vulnerability are particularly concerning due to the ease with which they can be exploited. An attacker with basic access rights could employ various techniques to navigate the file system and identify sensitive files. For example, they might use directory traversal or other reconnaissance methods to locate files that contain sensitive configuration data, user credentials, or other critical information. Once identified, the attacker can read this data, potentially leading to further exploitation of the environment, such as lateral movement within the network or privilege escalation. The simplicity of the attack, combined with the potential for significant information leakage, makes this vulnerability particularly dangerous.

The real-world impact of this vulnerability can be severe, especially for organizations that rely heavily on vCenter Server for managing their virtualized environments. The exposure of sensitive information can lead to data breaches, regulatory fines, and loss of customer trust. For instance, if an attacker gains access to user credentials or configuration files, they could compromise the integrity of the entire virtual infrastructure, leading to service disruptions or unauthorized access to critical systems. The business risk extends beyond immediate financial implications; it can also affect an organization’s reputation and operational continuity, making it imperative for organizations to address this vulnerability promptly.

To detect and mitigate this vulnerability, organizations should implement a multi-faceted approach. Regular security assessments and audits of file permissions should be conducted to ensure that only authorized users have access to sensitive files. Additionally, employing intrusion detection systems can help identify unusual access patterns that may indicate an attempted exploitation of this vulnerability. Organizations should also consider applying the latest patches and updates provided by VMware, as these often contain fixes for known vulnerabilities. Furthermore, educating staff about the importance of access controls and the potential risks associated with misconfigured permissions can enhance overall security posture.

In conclusion, the information disclosure vulnerability in vCenter Server presents a significant risk to organizations that utilize this platform for their virtual infrastructure management. The ease of exploitation, combined with the potential for severe consequences, underscores the need for proactive security measures. By implementing robust detection and mitigation strategies, organizations can safeguard their sensitive information and minimize the risk of unauthorized access. Addressing this vulnerability is not just a technical necessity; it is a critical component of maintaining trust and integrity in an increasingly complex digital landscape.

CSURFACE threat intelligence has detected a marked escalation in exploitation activity targeting CVE-2022-22948, coinciding with the emergence of new public proof-of-concept exploits and a Metasploit module that significantly lowers the technical barrier for attackers. This development has elevated the vulnerability’s CVSS score to 6.5 and prompted its inclusion in the CISA Known Exploited Vulnerabilities (KEV) catalog, underscoring its growing operational relevance. Our telemetry indicates a sharp increase in exploitation attempts, with the vulnerability now linked to the UNC3886 ransomware group, highlighting a shift toward more aggressive threat actor engagement. Although the EPSS score shows a slight decline recently, its current level remains elevated, reflecting sustained exploitation potential. This evolution materially increases the risk posture for organizations running VMware vCenter Server, as the availability of automated tools and public exploits facilitates broader and more frequent attacks. Defenders should recognize that the vulnerability has transitioned from a theoretical concern to an actively exploited vector leveraged by sophisticated adversaries, thereby raising the urgency for detection and response capabilities.

Update 2 — July 09, 2026

CSURFACE threat intelligence has detected a marked escalation in activity related to CVE-2022-22948, with telemetry indicating a doubling in detection frequency over recent monitoring periods. This surge underscores increased adversary interest and potentially broader scanning or exploitation attempts against VMware vCenter Server environments. Although the EPSS score remains stable and below critical thresholds, the sharp rise in observed activity signals a shift from sporadic probing to more persistent targeting. The presence of publicly available proof-of-concept exploits and Metasploit modules further lowers the barrier for exploitation, increasing the likelihood of successful information disclosure incidents. While ransomware groups have not been definitively linked to this vulnerability’s exploitation, the association with UNC3886 suggests potential for future integration into more complex attack chains. Collectively, these developments elevate the threat level from moderate concern to a more urgent operational risk, emphasizing the need for heightened vigilance in detection and response efforts within affected environments.