CVE-2007-0643 in Dev-C++
Summary
by MITRE
Stack-based buffer overflow in Bloodshed Dev-C++ 4.9.9.2 allows user-assisted remote attackers to cause a denial of service (application crash) and possibly execute arbitrary code via a long line in a .cpp file.
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Analysis
by VulDB Data Team • 08/20/2024
The vulnerability identified as CVE-2007-0643 represents a critical stack-based buffer overflow flaw within Bloodshed Dev-C++ version 4.9.9.2 that demonstrates the persistent security challenges associated with integrated development environments and their code parsing capabilities. This vulnerability specifically targets the compiler component of the development environment, which processes source code files and translates them into executable programs. The flaw occurs when the application encounters a malformed .cpp file containing an excessively long line of code, triggering a buffer overflow condition in the stack memory allocation during the parsing process. The vulnerability is classified as user-assisted remote, meaning that an attacker must convince a victim to open a specially crafted malicious file, but once executed, the consequences can be severe and potentially lead to complete system compromise. The stack-based nature of this buffer overflow places the vulnerability within the scope of common weakness enumeration CWE-121, which specifically addresses stack-based buffer overflow conditions that occur when insufficient bounds checking is performed on data copied to stack memory. This particular vulnerability aligns with the attack pattern described in the attack tree framework under the MITRE ATT&CK matrix as a code injection technique, specifically targeting the compilation and execution phases of software development processes.
The technical implementation of this vulnerability stems from inadequate input validation within the source code parser component of Dev-C++, where the application fails to properly check the length of input lines before attempting to process them in memory. When a .cpp file containing an extremely long line is processed, the compiler's internal buffer allocation mechanism cannot accommodate the excessive data length, causing the stack memory to overflow and overwrite adjacent memory locations. This overflow condition typically manifests as an application crash during compilation, but more critically, could potentially allow an attacker to inject and execute arbitrary code by carefully crafting the overflow to redirect program execution flow. The vulnerability's impact extends beyond simple denial of service as the buffer overflow could be exploited to overwrite return addresses, function pointers, or other critical memory segments that control program execution. The severity classification of this vulnerability reflects the potential for privilege escalation and system compromise, particularly when the development environment runs with elevated privileges or when the malicious code is executed within a context that allows for further system access. The vulnerability demonstrates a fundamental weakness in the software's defensive programming practices and highlights the importance of implementing proper bounds checking mechanisms in all input processing components.
The operational impact of CVE-2007-0643 extends significantly beyond the immediate denial of service condition, as it represents a potential gateway for more sophisticated attacks against development environments and the systems they operate on. When exploited successfully, this vulnerability could enable attackers to compromise the integrity of the development process itself, potentially leading to the injection of malicious code into legitimate software projects or the complete takeover of the development workstation. The implications are particularly concerning in enterprise environments where development tools may be shared across multiple users or deployed in automated build systems, as the vulnerability could be exploited to gain access to source code repositories or compromise entire development pipelines. Organizations using affected versions of Dev-C++ face substantial risk of unauthorized code injection and system compromise, especially when developers may unknowingly open malicious files or when the development environment is configured to automatically process untrusted input from external sources. The vulnerability's exploitation requires minimal technical expertise and can be accomplished through simple file manipulation, making it particularly dangerous in environments where security awareness among developers is low or where the development environment is not properly isolated from other network resources.
Mitigation strategies for CVE-2007-0643 must address both immediate defensive measures and long-term architectural improvements to prevent similar vulnerabilities from occurring in development environments. The most critical immediate action involves upgrading to a patched version of Bloodshed Dev-C++ or migrating to more modern, actively maintained development environments such as Code::Blocks, Visual Studio, or other contemporary IDEs that have addressed this vulnerability. Organizations should implement strict file validation procedures for all source code inputs, particularly in automated build environments, where untrusted code may be processed without proper sanitization. Input length validation and bounds checking mechanisms should be implemented at all levels of the parsing and compilation pipeline to prevent buffer overflow conditions from occurring. Additionally, system hardening measures including stack protection mechanisms, address space layout randomization, and non-executable stack protections should be enabled to reduce the effectiveness of potential exploitation attempts. Regular security assessments of development environments and source code management systems are essential to identify and remediate similar vulnerabilities before they can be exploited. The vulnerability also underscores the importance of maintaining up-to-date software versions and implementing proper software lifecycle management practices that include regular security patching and vulnerability assessment procedures. Organizations should consider implementing automated code analysis tools and static application security testing to detect potential buffer overflow conditions and other memory corruption vulnerabilities in their source code before they can be exploited. The incident serves as a reminder that development environments, despite being considered less critical than production systems, remain attractive targets for attackers seeking to compromise the software development lifecycle and gain access to sensitive code and intellectual property assets.