CVE-2006-5571 in CruiseWorks
Summary
by MITRE
Stack-based buffer overflow in /scripts/cruise/cws.exe in CruiseWorks 1.09c and 1.09d allows remote attackers to execute arbitrary code via a long string in the doc parameter.
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Analysis
by VulDB Data Team • 04/25/2026
The vulnerability identified as CVE-2006-5571 represents a critical stack-based buffer overflow flaw within the CruiseWorks software suite, specifically affecting versions 1.09c and 1.09d. This vulnerability resides in the /scripts/cruise/cws.exe component which serves as a core element of the CruiseWorks web application framework. The flaw manifests when the application processes user-supplied input through the doc parameter, creating an exploitable condition that can be leveraged by remote attackers to gain unauthorized system control.
The technical implementation of this vulnerability stems from inadequate input validation mechanisms within the cws.exe executable. When a malicious user submits an excessively long string through the doc parameter, the application fails to properly bounds-check the input before copying it onto the stack. This insufficient validation allows the overflow to overwrite adjacent stack memory regions, potentially corrupting the return address and other critical execution context. The vulnerability aligns with CWE-121 Stack-based Buffer Overflow, which specifically addresses buffer overflows occurring in stack memory regions where insufficient bounds checking permits data to overwrite adjacent memory locations. The attack vector is particularly concerning as it operates over a network interface, enabling remote exploitation without requiring local system access.
The operational impact of this vulnerability extends beyond simple code execution, creating significant risks for system integrity and data confidentiality. Successful exploitation can result in complete system compromise, allowing attackers to execute arbitrary commands with the privileges of the affected service account. This remote code execution capability enables threat actors to establish persistent access, escalate privileges, install backdoors, or conduct further reconnaissance activities within the compromised network environment. The vulnerability affects organizations using CruiseWorks for web-based applications, potentially exposing critical infrastructure to unauthorized access and manipulation. According to ATT&CK framework, this vulnerability maps to T1059.007 Command and Scripting Interpreter: PowerShell and T1203 Exploitation for Client Execution, highlighting the potential for post-exploitation activities and client-side exploitation techniques.
Mitigation strategies for CVE-2006-5571 should prioritize immediate patching of affected systems, as the vendor has likely released security updates addressing this specific buffer overflow condition. Organizations should implement network segmentation and access controls to limit exposure of vulnerable components to untrusted networks. Input validation should be strengthened at multiple layers including application-level filtering and web application firewalls to detect and block malicious payloads targeting this vulnerability. Additionally, regular security assessments and vulnerability scanning should be conducted to identify similar buffer overflow conditions within the broader application ecosystem. System hardening measures including stack protection mechanisms and address space layout randomization should be implemented to reduce the effectiveness of exploitation attempts even if the primary vulnerability remains unpatched. The remediation process must also include comprehensive monitoring for signs of exploitation attempts and maintaining up-to-date incident response procedures to address potential compromise scenarios.