CVE-2024-22187 in Productivity 3000 P3-550E
Summary
by MITRE • 05/28/2024
A write-what-where vulnerability exists in the Programming Software Connection Remote Memory Diagnostics functionality of AutomationDirect P3-550E 1.2.10.9. A specially crafted network packet can lead to an arbitrary write. An attacker can send an unauthenticated packet to trigger this vulnerability.
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Analysis
by VulDB Data Team • 02/13/2025
The vulnerability identified as CVE-2024-22187 represents a critical write-what-where condition within the remote memory diagnostics functionality of AutomationDirect P3-550E programming software version 1.2.10.9. This flaw resides in the network communication layer that handles remote memory diagnostic requests, specifically in how the system processes incoming data packets destined for memory manipulation operations. The vulnerability stems from insufficient input validation and memory management controls within the remote diagnostics interface, creating an opportunity for attackers to manipulate arbitrary memory locations through crafted network payloads. The affected system operates in industrial control environments where remote diagnostics capabilities are essential for maintenance and troubleshooting, but this feature has been implemented without proper security boundaries.
The technical exploitation of this vulnerability occurs through the manipulation of network packets sent to the target device's remote diagnostics port. When an attacker crafts a malicious packet containing specially formatted data, the system's insufficient validation mechanisms fail to properly sanitize the input before processing memory write operations. This allows the attacker to specify both the memory address to write to and the data to write, effectively creating a write-what-where primitive. The vulnerability is particularly dangerous because it requires no authentication, meaning any network entity can potentially exploit this flaw. The attack vector operates over the network protocol stack, typically utilizing TCP or UDP connections that are not properly secured or authenticated, and the memory operations are processed with insufficient bounds checking or address validation.
The operational impact of this vulnerability extends beyond simple privilege escalation or code execution. In industrial environments where the P3-550E system is deployed, this vulnerability could enable attackers to corrupt critical system memory, potentially leading to system instability, denial of service, or even physical damage to industrial processes. The arbitrary write capability could be leveraged to overwrite system variables, function pointers, or critical control parameters, disrupting the normal operation of industrial control systems. According to CWE classification, this vulnerability maps to CWE-787: "Out-of-bounds Write," which specifically addresses memory corruption vulnerabilities that allow attackers to write data beyond allocated memory boundaries. The impact is particularly severe in industrial control systems where reliability and predictability are paramount for safety and operational continuity.
The exploitation of this vulnerability aligns with several techniques documented in the MITRE ATT&CK framework, particularly those related to initial access and privilege escalation. The unauthenticated nature of the attack places this vulnerability within the initial access category, where attackers can gain entry without requiring credentials or prior access. The memory corruption aspect of the vulnerability fits within the privilege escalation domain, where attackers can leverage the write-what-where primitive to gain elevated system privileges. Network-based attacks against industrial control systems are increasingly common and represent a growing threat landscape, with this vulnerability exposing systems that are often not properly secured or monitored for network-based attacks. Organizations implementing the affected P3-550E systems should consider this vulnerability as part of their broader industrial cybersecurity risk assessment and incident response planning.
Mitigation strategies for this vulnerability should focus on network segmentation and access control measures to prevent unauthorized network access to the affected system. The most effective immediate solution involves implementing network access controls that restrict access to the remote diagnostics port to only authorized management systems or networks. System administrators should also consider disabling the remote diagnostics functionality if it is not actively required for operations, as this would eliminate the attack surface entirely. Additionally, network monitoring should be enhanced to detect unusual patterns of traffic to the affected port, which could indicate attempted exploitation. The vendor should be consulted for firmware updates that address the memory validation issues, as this vulnerability requires a software patch to provide a permanent fix. Organizations should also implement regular vulnerability assessments and penetration testing to identify similar issues in other industrial control systems within their environment.