CVE-2014-8678 in OpUtils
Summary
by MITRE
The ConfigSaveServlet servlet in ManageEngine OpUtils before build 71024 allows remote attackers to "disclose" files via a crafted filename, related to "saveFile."
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Analysis
by VulDB Data Team • 04/04/2022
The ConfigSaveServlet component within ManageEngine OpUtils version 71024 and earlier contains a critical file disclosure vulnerability that enables remote attackers to access arbitrary files on the underlying system. This vulnerability exists within the servlet's handling of the "saveFile" parameter, which processes user-supplied filenames without adequate validation or sanitization. The flaw represents a classic path traversal vulnerability where malicious input can manipulate the file system access patterns to retrieve sensitive data from locations outside the intended directory structure.
This vulnerability operates through a directory traversal attack vector that leverages the improper input validation in the ConfigSaveServlet. When a remote attacker submits a crafted filename parameter containing directory traversal sequences such as "../", the servlet fails to properly sanitize this input before using it in file operations. The vulnerability is classified under CWE-22 as Improper Limitation of a Pathname to a Restricted Directory, which is a fundamental security flaw that allows attackers to access files outside the intended scope of the application's file operations. The issue stems from insufficient input filtering and validation mechanisms that should have prevented the exploitation of relative path references in file handling operations.
The operational impact of this vulnerability extends beyond simple information disclosure as it provides attackers with access to potentially sensitive system files including configuration data, database credentials, application logs, and other confidential information stored on the server. An attacker could exploit this vulnerability to gain insights into the system architecture, identify running services, extract authentication credentials, or access other files that could facilitate further compromise of the system. The vulnerability affects the confidentiality and integrity of the system as it allows unauthorized access to files that should remain protected within the application's designated file access boundaries. This type of vulnerability is particularly dangerous in network infrastructure management tools like OpUtils where sensitive configuration data is often stored.
Mitigation strategies for this vulnerability should include immediate implementation of input validation and sanitization measures to prevent directory traversal sequences from being processed by the servlet. Organizations should apply the vendor-provided patch or upgrade to ManageEngine OpUtils build 71024 or later, which contains the necessary fixes to address the file disclosure issue. Network segmentation and access controls should be implemented to limit exposure of the vulnerable servlet to untrusted networks, while regular security audits should monitor for similar input validation flaws in other components. The vulnerability aligns with ATT&CK technique T1083 which covers directory and file discovery, and T1566 which covers credential access through various means including information gathering. System administrators should also implement proper logging and monitoring to detect anomalous file access patterns that might indicate exploitation attempts, and maintain regular backups to ensure system recovery capabilities in case of successful compromise.