CVE-2023-32764 in Cloud Enterprise Client
Summary
by MITRE • 08/03/2023
Fabasoft Cloud Enterprise Client 23.3.0.130 allows a user to escalate their privileges to local administrator.
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Analysis
by VulDB Data Team • 01/03/2026
The vulnerability identified as CVE-2023-32764 affects the Fabasoft Cloud Enterprise Client version 23.3.0.130, presenting a critical privilege escalation flaw that allows authenticated users to gain local administrator privileges on the affected system. This issue represents a significant security weakness within the client application's permission model and access control mechanisms. The vulnerability exists due to insufficient validation of user permissions and potentially flawed privilege checking routines within the application's local execution context. Attackers exploiting this vulnerability can elevate their privileges without requiring additional authentication or administrative credentials, fundamentally compromising the security posture of systems running the affected client software.
The technical implementation of this privilege escalation flaw likely stems from improper handling of local system permissions or inadequate sandboxing mechanisms within the client application. The vulnerability may manifest through insecure direct object references, improper access control checks, or flawed privilege separation between user and administrative functions. According to CWE classification, this vulnerability aligns with CWE-269: Improper Privilege Management, which encompasses issues where applications fail to properly enforce access controls for privileged operations. The flaw could also be categorized under CWE-787: Out-of-bounds Write, if the escalation occurs through buffer manipulation, or CWE-276: Incorrect Default Permissions, if the application initializes with overly permissive access rights.
From an operational impact perspective, this vulnerability creates a severe risk for organizations relying on the Fabasoft Cloud Enterprise Client for document management and enterprise collaboration. Once exploited, attackers can execute arbitrary code with full administrative privileges, potentially leading to complete system compromise, data exfiltration, lateral movement within the network, and persistence mechanisms. The vulnerability undermines the principle of least privilege and can enable attackers to modify system configurations, install malicious software, access sensitive data, and establish backdoors. Organizations using this client may experience unauthorized access to confidential documents, disruption of business operations, and potential compliance violations, particularly in regulated environments where data protection is paramount.
The exploitation of this vulnerability can be facilitated through various attack vectors including social engineering, compromised user accounts, or by leveraging other initial access points within the network infrastructure. According to ATT&CK framework, this vulnerability maps to T1068: Exploitation for Privilege Escalation, where adversaries leverage software vulnerabilities to gain elevated privileges. The attack chain may involve initial access through legitimate user credentials followed by exploitation of this privilege escalation flaw to achieve local administrator access. Organizations should consider implementing network segmentation, monitoring for unusual privilege escalation activities, and maintaining up-to-date security patches to mitigate the risk. The vulnerability also aligns with T1078: Valid Accounts, as it leverages legitimate user accounts to escalate privileges without requiring additional authentication mechanisms.
Mitigation strategies should focus on immediate patching of the affected client version to address the privilege escalation flaw. Organizations should also implement additional security controls including regular privilege reviews, monitoring for unauthorized privilege changes, and enforcement of principle of least privilege. Network access controls and application whitelisting can help prevent exploitation attempts, while endpoint detection and response solutions should be configured to alert on suspicious privilege escalation activities. Security teams should conduct thorough vulnerability assessments to identify other potential privilege escalation paths within the organization's infrastructure and ensure that proper access control policies are enforced across all enterprise applications. Regular security awareness training should also be implemented to reduce the risk of social engineering attacks that could lead to exploitation of this vulnerability.