CVE-2018-17408 in Accounting Enterprise Plus
Summary
by MITRE
Stack-based buffer overflows in Zahir Accounting Enterprise Plus 6 through build 10b allow remote attackers to execute arbitrary code via a crafted CSV file that is accessed through the Import CSV File menu.
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Analysis
by VulDB Data Team • 10/19/2025
The vulnerability identified as CVE-2018-17408 represents a critical stack-based buffer overflow flaw within Zahir Accounting Enterprise Plus version 6 through build 10b. This security weakness resides in the application's handling of CSV file imports, specifically when processing maliciously crafted CSV data through the Import CSV File menu interface. The flaw enables remote attackers to potentially execute arbitrary code on affected systems, making it a significant threat vector for unauthorized system compromise. The vulnerability stems from insufficient input validation and bounds checking within the CSV parsing functionality, allowing attackers to overflow stack memory buffers and overwrite critical program execution data.
From a technical perspective, the buffer overflow occurs during the processing of structured data within the CSV import module, where the application fails to properly validate the length and format of incoming data fields. This allows an attacker to craft a specially formatted CSV file that, when processed by the vulnerable software, causes the stack memory to overflow beyond its allocated boundaries. The overflow can overwrite return addresses, function pointers, and other critical execution metadata, enabling attackers to redirect program flow and execute malicious code with the privileges of the affected application. This type of vulnerability aligns with CWE-121 Stack-based Buffer Overflow, which specifically addresses buffer overflows occurring in stack memory regions.
The operational impact of this vulnerability extends beyond simple code execution, as it provides attackers with a potential pathway for complete system compromise within the accounting environment. Organizations utilizing Zahir Accounting Enterprise Plus face significant risk from remote code execution capabilities that could lead to data breaches, financial fraud, and unauthorized access to sensitive accounting information. The remote nature of the attack means that exploitation can occur without physical access to the target system, making it particularly dangerous for enterprise environments where accounting data often contains sensitive financial and personal information. The vulnerability affects systems where the CSV import functionality is accessible, potentially impacting multiple users across different departments within an organization.
Mitigation strategies for CVE-2018-17408 should prioritize immediate software updates from the vendor, as this vulnerability requires patching at the application level to address the underlying buffer overflow conditions. Organizations should implement network segmentation to limit access to the vulnerable application and restrict CSV import functionality to trusted users only. Additionally, deploying network-based intrusion detection systems can help identify potential exploitation attempts through anomalous CSV file transfer patterns. Security teams should also establish strict input validation procedures for all CSV data entering the system, including implementing file format checks and size limitations. The ATT&CK framework categorizes this vulnerability under T1059 Command and Scripting Interpreter and T1203 Exploitation for Client Execution, emphasizing the need for both defensive measures and monitoring capabilities to detect and prevent exploitation attempts. Regular security assessments and vulnerability scanning should be conducted to identify similar issues within the broader application ecosystem and ensure comprehensive protection against similar attack vectors.