CVE-2022-40715 in 1350OMS
Summary
by MITRE • 09/19/2022
An issue was discovered in NOKIA 1350OMS R14.2. An Absolute Path Traversal vulnerability exists for a specific endpoint via the logfile parameter, allowing a remote authenticated attacker to read files on the filesystem arbitrarily.
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Analysis
by VulDB Data Team • 09/19/2022
The vulnerability identified as CVE-2022-40715 represents a critical absolute path traversal flaw within the Nokia 1350OMS R14.2 system, specifically affecting a designated endpoint that processes the logfile parameter. This security weakness enables remote authenticated attackers to arbitrarily access and read files from the underlying filesystem, potentially exposing sensitive system information and compromising the integrity of the affected device. The vulnerability stems from inadequate input validation and sanitization mechanisms that fail to properly restrict file path access, allowing malicious actors to manipulate the logfile parameter and navigate beyond intended directories.
This particular flaw falls under the Common Weakness Enumeration category CWE-22, which specifically addresses improper limitation of a pathname to a restricted directory, commonly known as path traversal or directory traversal attacks. The vulnerability operates by exploiting insufficient validation of user-supplied input through the logfile parameter, enabling attackers to craft malicious requests that traverse the file system hierarchy. The attack vector requires authentication, meaning that an attacker must first establish legitimate credentials to exploit this weakness, but once authenticated, the impact remains severe due to the arbitrary file reading capabilities. The affected Nokia 1350OMS R14.2 device represents a network infrastructure component that likely handles operational logging and monitoring functions, making the potential exposure of system files particularly concerning for network security and operational integrity.
The operational impact of this vulnerability extends beyond simple information disclosure, as successful exploitation could lead to unauthorized access to system configuration files, log data, and potentially sensitive operational parameters that could be leveraged for further attacks. From an adversarial perspective, this vulnerability aligns with techniques documented in the MITRE ATT&CK framework under the T1083 - File and Directory Discovery tactic, where adversaries seek to understand the file system structure and locate sensitive data. The authenticated nature of the attack means that attackers could potentially escalate privileges or access additional system resources through the retrieved information, particularly if the device operates within a network environment where it has access to other systems or sensitive operational data. The vulnerability affects the device's ability to maintain proper access controls and data isolation, potentially compromising the confidentiality and integrity of operational data and system logs.
Mitigation strategies for CVE-2022-40715 should focus on implementing robust input validation and sanitization for all user-supplied parameters, particularly those that influence file system access operations. The most effective immediate solution involves restricting the logfile parameter to specific, predefined directories and implementing proper path validation to prevent traversal attacks. Organizations should also consider implementing principle of least privilege access controls for the affected endpoint, ensuring that authenticated users have minimal necessary access rights to prevent exploitation. Network segmentation and monitoring of suspicious file access patterns can help detect potential exploitation attempts. Additionally, regular security updates and patches should be applied to address the underlying vulnerability in the Nokia 1350OMS R14.2 firmware, while implementing proper log monitoring to detect unauthorized access attempts to system files. The vulnerability underscores the importance of input validation and access control mechanisms in network infrastructure devices, particularly those handling operational logging functions that may contain sensitive system information.