CVE-2010-1492 in Elastix
Summary
by MITRE
Directory traversal vulnerability in help/frameRight.php in Elastix 1.6.0 allows remote attackers to read arbitrary files via a .. (dot dot) in the id_nodo parameter. NOTE: the provenance of this information is unknown; the details are obtained solely from third party information.
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Analysis
by VulDB Data Team • 08/16/2017
The vulnerability identified as CVE-2010-1492 represents a critical directory traversal flaw within the Elastix 1.6.0 telephony management system, specifically affecting the help/frameRight.php component. This weakness enables remote attackers to access arbitrary files on the target system through manipulation of the id_nodo parameter, exploiting a fundamental flaw in input validation and file access control mechanisms. The vulnerability stems from insufficient sanitization of user-supplied input, allowing malicious actors to traverse directory structures and potentially access sensitive system files, configuration data, or private information that should remain protected.
The technical implementation of this vulnerability operates through a classic path traversal attack vector where the .. (dot dot) sequence is appended to the id_nodo parameter to move up directory levels. When the application processes this parameter without proper validation, it directly incorporates the user-supplied path into file operations, enabling attackers to navigate beyond intended directories and access files outside the application's designated scope. This flaw aligns with CWE-22, which categorizes improper limitation of a pathname to a restricted directory, commonly known as path traversal or directory traversal attacks. The vulnerability demonstrates a clear failure in input validation and access control enforcement within the web application's file handling routines.
The operational impact of this vulnerability extends beyond simple information disclosure, as it provides attackers with potential access to sensitive system resources including configuration files, database credentials, system logs, and other confidential data that could facilitate further exploitation. An attacker could leverage this vulnerability to gain unauthorized access to system files that might contain authentication tokens, encryption keys, or other critical security information. The remote nature of the attack means that exploitation does not require physical access to the system, making it particularly dangerous as it can be exploited from anywhere on the network. This vulnerability also aligns with ATT&CK technique T1083, which covers the discovery of system information through directory listing and file access enumeration.
Mitigation strategies for CVE-2010-1492 should focus on implementing robust input validation and sanitization mechanisms to prevent directory traversal attacks. Organizations should immediately patch the affected Elastix 1.6.0 installation with the latest security updates or apply manual code fixes that properly validate and sanitize all user-supplied input parameters. The solution should include implementing a whitelist approach for acceptable parameter values, using secure file access methods that prevent path traversal sequences, and ensuring that all file operations occur within designated safe directories. Additionally, implementing proper access controls and privilege separation can limit the damage that could result from successful exploitation. Network segmentation and firewall rules should be configured to restrict access to administrative interfaces, while regular security audits and penetration testing should be conducted to identify and remediate similar vulnerabilities in other components of the system.