CVE-2018-15610 in IP Office
Summary
by MITRE
A vulnerability in the one-X Portal component of Avaya IP Office allows an authenticated attacker to read and delete arbitrary files on the system. Affected versions of Avaya IP Office include 9.1 through 9.1 SP12, 10.0 through 10.0 SP7, and 10.1 through 10.1 SP2.
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Analysis
by VulDB Data Team • 05/16/2023
The vulnerability identified as CVE-2018-15610 represents a critical security flaw within the one-X Portal component of Avaya IP Office communication systems. This issue affects a range of versions including 9.1 through 9.1 SP12, 10.0 through 10.0 SP7, and 10.1 through 10.1 SP2, making it a widespread concern across multiple generations of Avaya's unified communications platform. The vulnerability stems from inadequate input validation and access control mechanisms that allow authenticated users to exploit improper file handling procedures within the system's web interface.
The technical nature of this vulnerability manifests through insufficient sanitization of user inputs in the one-X Portal component, which enables an attacker who has already established authentication credentials to manipulate file system operations. This flaw specifically affects the system's ability to properly validate file paths and access permissions, allowing an authenticated user to craft malicious requests that bypass normal file access controls. The vulnerability operates at the application level and leverages the existing authentication mechanism to escalate privileges within the file system boundaries, effectively transforming legitimate user access into unauthorized file operations.
From an operational perspective, this vulnerability poses significant risks to organizations relying on Avaya IP Office systems for their communication infrastructure. An authenticated attacker can leverage this weakness to read sensitive configuration files, system logs, and potentially proprietary business data stored on the server. The ability to delete arbitrary files introduces additional destructive capabilities that could compromise system integrity, disrupt communication services, and potentially lead to complete system compromise. The impact extends beyond simple data exposure as the deletion capability can be used to remove critical system components, leading to service disruption and potential data loss.
The vulnerability aligns with CWE-22, which describes improper limitation of a pathname to a restricted directory, commonly known as path traversal attacks. This classification indicates that the flaw involves insufficient restrictions on file system access paths, allowing attackers to navigate beyond intended directories. From an adversarial perspective, this vulnerability maps to multiple ATT&CK techniques including T1078 for valid accounts and T1005 for data from local system. The attack chain typically involves initial authentication followed by exploitation of the file system access controls, potentially leading to further system compromise through lateral movement or privilege escalation.
Organizations should immediately implement mitigations including applying the latest security patches from Avaya, which would address the input validation and access control deficiencies. Network segmentation and firewall rules should be configured to limit access to the one-X Portal component to trusted administrative networks only. Additional protective measures include implementing monitoring solutions to detect unusual file access patterns and establishing strict access control policies that limit authentication to only necessary personnel. Regular security assessments and vulnerability scanning should be conducted to identify similar weaknesses in other system components, while incident response procedures should be updated to address potential exploitation of this vulnerability through unauthorized file access or deletion activities.