CVE-2012-0186 in Lotus Expeditor
Summary
by MITRE
Directory traversal vulnerability in the Eclipse Help component in IBM Lotus Expeditor 6.1.x and 6.2.x before 6.2 FP5+Security Pack allows remote attackers to discover the locations of files via a crafted URL.
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Analysis
by VulDB Data Team • 01/10/2018
The vulnerability identified as CVE-2012-0186 represents a directory traversal flaw within the Eclipse Help component of IBM Lotus Expeditor versions 6.1.x and 6.2.x prior to 6.2 FP5+Security Pack. This directory traversal vulnerability stems from insufficient input validation in the help system's URL parsing mechanism, allowing remote attackers to manipulate file path references and potentially access unauthorized system resources. The flaw specifically affects the way the application processes help system URLs, creating an opportunity for malicious actors to explore the underlying file system structure. Such vulnerabilities typically arise when applications fail to properly sanitize user-supplied input before using it in file system operations, creating pathways for attackers to navigate beyond intended directories.
The technical implementation of this vulnerability involves the manipulation of URL parameters within the Eclipse Help component to traverse directory structures. Attackers can craft specially formatted URLs that exploit the lack of proper path validation, potentially allowing them to access sensitive files, configuration data, or system resources that should remain protected. This type of vulnerability falls under CWE-22, which specifically addresses improper limitation of a pathname to a restricted directory, commonly known as path traversal or directory traversal. The vulnerability enables attackers to bypass normal access controls and gain unauthorized visibility into the application's file system, potentially exposing sensitive information that could aid in further exploitation attempts.
The operational impact of this vulnerability extends beyond simple information disclosure, as it provides attackers with reconnaissance capabilities that can be leveraged for more sophisticated attacks. Successful exploitation could reveal the underlying file system structure, potentially exposing configuration files, database connection strings, or other sensitive artifacts that could be used in subsequent attack phases. The vulnerability affects IBM Lotus Expeditor's help system, which is typically accessible over network protocols, making it remotely exploitable without requiring authentication. This characteristic aligns with ATT&CK technique T1083, which describes discovering file and directory permissions, and T1005, which involves data from local system. The exposure of file system locations could enable attackers to identify additional vulnerabilities or sensitive data repositories within the application environment.
Mitigation strategies for CVE-2012-0186 should focus on implementing proper input validation and sanitization within the Eclipse Help component. Organizations should immediately apply the security patch released by IBM as part of the 6.2 FP5+Security Pack update, which addresses this specific directory traversal vulnerability. Additionally, network segmentation and access controls should be implemented to limit exposure of the affected system to untrusted networks. Security monitoring should be enhanced to detect unusual URL patterns or attempts to traverse directory structures. The remediation process should include comprehensive testing to ensure that the patch does not introduce regressions in the help system functionality while effectively closing the directory traversal pathway. Organizations should also consider implementing web application firewalls and intrusion detection systems to provide additional layers of protection against similar vulnerabilities in the future.