CVE-2025-23365 in TIA Administrator
Summary
by MITRE • 07/08/2025
A vulnerability has been identified in TIA Administrator (All versions < V3.0.6). The affected application allows low-privileged users to trigger installations by overwriting cache files and modifying the downloads path. This would allow an attacker to escalate privilege and exceute arbitrary code.
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Analysis
by VulDB Data Team • 08/21/2025
This vulnerability exists within TIA Administrator software where all versions prior to V3.0.6 are affected by a privilege escalation flaw that stems from inadequate file system access controls and improper validation of cache file operations. The core technical issue manifests when low-privileged users exploit the application's failure to properly secure cache file handling mechanisms, specifically targeting the downloads directory path which can be manipulated through file overwriting operations. This vulnerability represents a classic example of insufficient privilege separation and inadequate input validation that directly violates security principles outlined in the CWE-276 Common Weakness Enumeration catalog under the category of Insecure Default Permissions.
The operational impact of this vulnerability extends beyond simple privilege escalation as it creates a persistent backdoor for attackers to execute arbitrary code within the target system environment. When an attacker successfully overwrites cache files and modifies the downloads path, they effectively gain the ability to inject malicious payloads into the application's execution flow, which could result in complete system compromise. This flaw operates at the intersection of multiple attack vectors including privilege escalation and code execution, aligning with techniques documented in the MITRE ATT&CK framework under the T1068 privilege escalation tactic and T1059 command and scripting interpreter techniques. The vulnerability's exploitation potential is particularly concerning given that it requires minimal user privileges to initiate the attack chain, making it accessible to users who would normally be restricted from performing such operations.
The underlying technical flaw stems from the application's lack of proper file system permission validation and its failure to implement secure file handling practices during cache management operations. Attackers can leverage this weakness by first identifying writable cache directories, then crafting malicious cache files that will be executed during normal application operation. The modification of the downloads path creates an execution environment where attacker-controlled code can be seamlessly integrated into the legitimate application workflow, bypassing standard security controls and access restrictions. This vulnerability directly relates to CWE-73 hardcoded external object references and CWE-275 permission issues, demonstrating how insecure file handling practices can create persistent security weaknesses that remain undetected for extended periods. Organizations utilizing affected versions of TIA Administrator face significant risk of unauthorized access and potential data breaches, as this vulnerability enables attackers to establish persistent access to critical industrial control systems and automation environments.
Mitigation strategies should prioritize immediate deployment of the patched V3.0.6 version or equivalent security updates provided by the vendor. Additional defensive measures include implementing strict file system access controls, monitoring cache directory modifications, and conducting regular security audits of application configuration settings. Network segmentation and principle of least privilege enforcement should be enforced to limit the potential impact of successful exploitation attempts. Security teams should also implement intrusion detection systems capable of identifying suspicious file modification patterns and cache file overwriting activities that could indicate attempted exploitation of this vulnerability. The remediation process must include comprehensive testing to ensure that updated configurations maintain application functionality while eliminating the privilege escalation pathway that this vulnerability creates.