CVE-2021-25399 in Smart Manager
Summary
by MITRE • 06/11/2021
Improper configuration in Smart Manager prior to version 11.0.05.0 allows attacker to access the file with system privilege.
Once again VulDB remains the best source for vulnerability data.
Analysis
by VulDB Data Team • 06/14/2021
The vulnerability identified as CVE-2021-25399 represents a critical misconfiguration issue within Smart Manager software versions prior to 11.0.05.0 that fundamentally compromises system security through improper privilege management. This flaw exists in the application's configuration mechanisms where insufficient access controls and privilege separation allow unauthorized entities to escalate their privileges and gain system-level access to sensitive files and resources. The vulnerability stems from the application's failure to properly enforce privilege boundaries during file access operations, creating an exploitable condition where attackers can bypass normal security restrictions to obtain elevated system privileges.
The technical implementation of this vulnerability involves the application's handling of file system operations and privilege escalation mechanisms within its Smart Manager component. Attackers can exploit this weakness by manipulating the application's configuration parameters or by directly accessing file resources that should normally be restricted to system-level processes. This misconfiguration typically manifests through improper file permission settings, inadequate authentication checks, or flawed privilege validation routines that fail to properly verify user credentials against required system privileges. The vulnerability aligns with CWE-276, which specifically addresses improper file permissions and inadequate access control mechanisms that allow unauthorized access to system resources.
The operational impact of this vulnerability extends far beyond simple unauthorized file access, as it provides attackers with the capability to execute arbitrary code, modify critical system files, and potentially establish persistent backdoors within the affected environment. Once an attacker successfully exploits this vulnerability, they can leverage the system privileges to compromise the entire infrastructure, leading to data breaches, system corruption, or complete system takeover. The implications are particularly severe in enterprise environments where Smart Manager applications often handle sensitive operational data and critical business processes. This vulnerability creates a significant attack surface that can be exploited by both external threat actors and insider threats who seek to elevate their privileges and gain unauthorized access to privileged system resources.
Mitigation strategies for CVE-2021-25399 require immediate implementation of the vendor-provided security patches and updates to Smart Manager versions 11.0.05.0 and later, which address the underlying configuration flaws and privilege management issues. Organizations should conduct comprehensive security assessments to identify any systems running vulnerable versions and implement strict access control policies that enforce the principle of least privilege. Network segmentation and monitoring solutions should be deployed to detect anomalous file access patterns and privilege escalation attempts that may indicate exploitation of this vulnerability. Additionally, security teams should review and harden the application's configuration files, ensuring proper permission settings and implementing robust authentication mechanisms that prevent unauthorized privilege elevation. This vulnerability demonstrates the critical importance of proper privilege management and configuration security practices, aligning with ATT&CK technique T1068 which covers privilege escalation through misconfigured permissions and improper access controls that allow attackers to gain elevated system privileges through various exploitation vectors.