CVE-2009-1568 in iPrint Client
Summary
by MITRE
Stack-based buffer overflow in ienipp.ocx in Novell iPrint Client 5.30, and possibly other versions before 5.32, allows remote attackers to execute arbitrary code via a long target-frame parameter.
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Analysis
by VulDB Data Team • 11/16/2025
The vulnerability identified as CVE-2009-1568 represents a critical stack-based buffer overflow flaw within the ienipp.ocx component of Novell iPrint Client version 5.30 and potentially earlier versions up to 5.31. This issue arises from insufficient input validation when processing the target-frame parameter, creating a condition where an attacker can manipulate the application's memory structure through crafted malicious input. The vulnerability falls under the CWE-121 category of Stack-based Buffer Overflow, which specifically targets the stack memory region where local variables and function return addresses are stored, making it particularly dangerous for privilege escalation and arbitrary code execution scenarios.
The technical implementation of this vulnerability occurs when the iPrint Client processes web-based print requests that contain an excessively long target-frame parameter value. When the application attempts to store this parameter on the stack without proper bounds checking, it overflows the allocated buffer space, potentially overwriting adjacent memory locations including return addresses and function pointers. This memory corruption allows an attacker to redirect program execution flow to malicious code injected into the stack space, effectively enabling remote code execution with the privileges of the compromised application process. The attack vector is particularly concerning as it requires no local access and can be exploited through web-based interfaces, making it highly suitable for network-based attacks.
The operational impact of CVE-2009-1568 extends beyond simple code execution, as it provides attackers with a potential pathway for privilege escalation and persistent access within network environments. Organizations utilizing Novell iPrint Client software face significant risk from this vulnerability, particularly in environments where the application is deployed with elevated privileges or where users have access to web-based print services. The vulnerability's remote exploitability means that attackers can target systems from outside the network perimeter, potentially compromising print servers and networked printers that rely on iPrint Client functionality. This creates a substantial attack surface that could be leveraged for lateral movement within networks or as part of broader exploitation campaigns targeting enterprise environments.
Mitigation strategies for this vulnerability should prioritize immediate patching of affected Novell iPrint Client installations to version 5.32 or later, which contains the necessary code modifications to address the buffer overflow condition. Network administrators should implement firewall rules to restrict access to iPrint Client web interfaces and print server ports, limiting the attack surface where this vulnerability could be exploited. Additionally, system hardening measures including disabling unnecessary web-based print services, implementing strict input validation for all user-supplied parameters, and monitoring for suspicious network traffic patterns can help reduce the risk of exploitation. From an ATT&CK framework perspective, this vulnerability maps to techniques involving remote code execution and privilege escalation, with potential for lateral movement through compromised print services. Organizations should also consider implementing application whitelisting policies to prevent execution of untrusted code and establish incident response procedures to detect and respond to potential exploitation attempts. The vulnerability demonstrates the importance of proper input validation and memory management practices in preventing buffer overflow exploits, aligning with industry best practices for secure coding standards and defensive programming techniques.