CVE-2011-2963 in Movicon
Summary
by MITRE
TCPUploadServer.exe in Progea Movicon 11.2 before Build 1084 does not require authentication for critical functions, which allows remote attackers to obtain sensitive information, delete files, execute arbitrary programs, or cause a denial of service (crash) via a crafted packet to TCP port 10651.
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Analysis
by VulDB Data Team • 01/11/2025
The vulnerability identified as CVE-2011-2963 affects Progea Movicon 11.2 before Build 1084 and resides in the TCPUploadServer.exe component that operates on TCP port 10651. This represents a critical security flaw where the system fails to implement proper authentication mechanisms for essential administrative functions. The absence of authentication requirements creates an attack surface that enables malicious actors to exploit the system without legitimate credentials, fundamentally compromising the security posture of industrial control systems that rely on this software.
The technical nature of this vulnerability stems from the lack of access control validation within the TCPUploadServer.exe process. When remote attackers send crafted packets to port 10651, they can bypass authentication requirements and directly interact with the system's core functionalities. This flaw aligns with CWE-287, which addresses improper authentication issues in software systems. The vulnerability essentially creates a backdoor through which unauthorized users can perform administrative operations that should normally be restricted to authenticated administrators. The attack vector is particularly concerning because it operates at the network level, allowing remote exploitation without requiring physical access to the system.
The operational impact of this vulnerability is severe and multifaceted, encompassing information disclosure, file deletion, arbitrary code execution, and denial of service conditions. Attackers can potentially extract sensitive operational data, remove critical system files, install malicious software, or cause system crashes that could disrupt industrial processes. This vulnerability directly impacts the integrity, confidentiality, and availability of the affected systems, making it particularly dangerous in industrial environments where system stability and data protection are paramount. The potential for remote code execution places this vulnerability in the ATT&CK framework under the T1059 technique category for command and control, while also aligning with T1499 for network denial of service attacks.
Organizations utilizing Progea Movicon 11.2 before Build 1084 should immediately implement network segmentation to isolate the affected system from untrusted networks and restrict access to TCP port 10651 through firewall rules. The most effective mitigation strategy involves applying the vendor-provided patch or upgrading to a version that includes proper authentication mechanisms for the TCPUploadServer.exe component. Network monitoring should be enhanced to detect unusual traffic patterns on port 10651, and access controls should be implemented at multiple layers including network firewalls, application-level controls, and physical security measures. Additionally, security audits should be conducted to identify any other services or components that may exhibit similar authentication weaknesses, as this vulnerability demonstrates a pattern of insufficient access control implementation that could affect other system functions.