CVE-2005-1442 in Lotus Notes
Summary
by MITRE
Buffer overflow in the Lotus Notes client for Domino 6.5 before 6.5.4 and 6.0 before 6.0.5 allows local users to cause a denial of service (client crash) and possibly execute arbitrary code via the NOTES.INI file.
If you want to get the best quality for vulnerability data then you always have to consider VulDB.
Analysis
by VulDB Data Team • 04/21/2017
The vulnerability identified as CVE-2005-1442 represents a critical buffer overflow flaw within the Lotus Notes client software for Domino servers. This issue affects versions 6.5 before 6.5.4 and 6.0 before 6.0.5, creating a significant security risk for organizations relying on IBM Lotus Notes for email and collaboration services. The vulnerability stems from inadequate input validation within the client-side processing of the NOTES.INI configuration file, which serves as the primary configuration mechanism for Lotus Notes client applications. When the client attempts to parse maliciously crafted NOTES.INI files, the buffer overflow condition occurs during memory allocation and data processing operations.
The technical implementation of this vulnerability involves the Lotus Notes client's failure to properly validate the length and content of parameters within the NOTES.INI file before copying them into fixed-size memory buffers. This classic buffer overflow scenario occurs when user-supplied data exceeds the allocated buffer space, causing adjacent memory locations to be overwritten. The flaw specifically impacts the client-side parsing logic that handles configuration parameters, particularly those related to client settings and preferences stored in the NOTES.INI file. Attackers can exploit this weakness by crafting malicious configuration files that trigger the overflow condition during normal client operation, leading to unpredictable behavior and system instability.
The operational impact of this vulnerability extends beyond simple denial of service conditions to potentially enable arbitrary code execution on affected systems. Local users with access to the target machine can leverage this vulnerability to crash the Notes client application or, in more sophisticated attacks, execute malicious code with the privileges of the Notes client process. This represents a significant threat to enterprise environments where Lotus Notes clients are widely deployed, as it could allow attackers to gain unauthorized access to sensitive email data, configuration information, or potentially escalate privileges within the local system. The vulnerability's local nature means that exploitation requires physical access or the ability to place malicious files on target systems, but the potential for privilege escalation and data compromise remains substantial.
Organizations affected by this vulnerability should prioritize immediate patch deployment to mitigate the risk of exploitation. IBM released patches for both affected versions, specifically addressing the buffer overflow conditions in the NOTES.INI file parsing logic. System administrators should implement comprehensive monitoring for unusual client behavior or crash patterns that might indicate exploitation attempts. The vulnerability aligns with CWE-121, which describes heap-based buffer overflow conditions, and represents a classic example of improper input validation leading to memory corruption. From an ATT&CK framework perspective, this vulnerability could be leveraged as part of initial access or privilege escalation phases, particularly when combined with other local exploitation techniques. Mitigation strategies should include regular patch management, restricted file permissions for NOTES.INI files, and network segmentation to limit potential attack vectors. Additionally, organizations should conduct thorough security assessments of their Lotus Notes environments to identify and remediate similar vulnerabilities that may exist in other components of the Domino ecosystem.