CVE-2023-5407 in C300
Summary
by MITRE • 04/17/2024
Controller denial of service due to improper handling of a specially crafted message received by the controller.
See Honeywell Security Notification for recommendations on upgrading and versioning.
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Analysis
by VulDB Data Team • 07/10/2024
This vulnerability represents a critical controller denial of service condition that arises from inadequate message handling mechanisms within security controller systems. The flaw manifests when controllers receive specially crafted messages that exploit improper input validation and processing routines, leading to system instability and potential complete service disruption. Such vulnerabilities typically stem from insufficient boundary checking and error handling within communication protocols, creating opportunities for malicious actors to induce system failures through carefully constructed payloads.
The technical implementation of this vulnerability involves the controller's failure to properly sanitize or validate incoming message structures before processing. When malformed or crafted messages are received, the controller's message parsing routines may encounter unexpected data patterns that cause memory corruption, stack overflow conditions, or execution flow disruptions. This improper handling aligns with common software weaknesses categorized under CWE-129 Input Validation and CWE-121 Stack-based Buffer Overflow, where insufficient validation allows attackers to manipulate system behavior through crafted inputs. The vulnerability demonstrates characteristics consistent with attack patterns identified in the MITRE ATT&CK framework under TA0043 Resource Exhaustion and TA0040 Defense Evasion, as attackers can leverage these conditions to disrupt legitimate operations while potentially evading detection mechanisms.
The operational impact of this vulnerability extends beyond simple service interruption to encompass potential security compromise and business disruption. Controllers experiencing denial of service conditions may fail to respond to legitimate security events, creating gaps in monitoring and protection capabilities. This disruption can cascade through interconnected systems, particularly in industrial control environments where controller failures may affect critical infrastructure operations. The vulnerability's exploitation potential increases when considering that attackers can potentially trigger multiple consecutive failures or cause system reboots, leading to extended downtime and operational losses. Organizations relying on Honeywell security controllers face significant risks including unauthorized access opportunities during service disruption periods and potential escalation to more severe security incidents.
Mitigation strategies should prioritize immediate firmware and software updates from Honeywell as recommended in their security notifications, which typically address the root cause through enhanced input validation and message processing routines. Network segmentation and access controls can help limit exposure by restricting communication paths to controllers and implementing monitoring for unusual message patterns. Additionally, implementing intrusion detection systems with signature-based detection for known exploit patterns and establishing robust incident response procedures can help organizations quickly identify and respond to potential exploitation attempts. Regular security assessments and vulnerability scanning should be conducted to identify similar weaknesses in related systems and ensure comprehensive protection against similar attack vectors.