CVE-2025-9142 in Hramony SASE
Summary
by MITRE • 01/14/2026
A local user can trigger Harmony SASE Windows client to write or delete files outside the intended certificate working directory.
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Analysis
by VulDB Data Team • 01/14/2026
The vulnerability identified as CVE-2025-9142 represents a critical path traversal flaw within the Harmony SASE Windows client software that enables local users to manipulate file system operations beyond the designated certificate working directory. This security weakness stems from insufficient input validation and inadequate path sanitization mechanisms within the client application's file handling processes. The flaw specifically affects the Windows operating system implementation of the Harmony SASE client, which is designed to manage secure access and certificate operations for enterprise network environments. Attackers exploiting this vulnerability can leverage the compromised client to write or delete files in arbitrary locations on the target system, potentially leading to privilege escalation or system compromise.
The technical root cause of this vulnerability aligns with CWE-22 Path Traversal and CWE-73 Path Traversal, where the application fails to properly validate or sanitize file paths before processing them. The Harmony SASE client appears to improperly handle relative path references or directory traversal sequences, allowing malicious input to bypass intended security boundaries. When the client processes certificate-related operations, it accepts user-supplied paths without adequate sanitization, enabling an attacker to specify paths that extend beyond the intended certificate directory. This flaw operates at the application level and does not require network connectivity, making it particularly dangerous as it can be exploited through local system access alone. The vulnerability essentially allows an attacker to manipulate the client's file system operations through crafted input that exploits the absence of proper path validation controls.
The operational impact of CVE-2025-9142 extends beyond simple unauthorized file operations to potentially enable more sophisticated attack vectors within enterprise environments. Local users with access to the Harmony SASE client can leverage this vulnerability to overwrite critical system files, inject malicious code into the certificate management process, or delete essential components that maintain the integrity of the security infrastructure. In enterprise settings where Harmony SASE clients are deployed for secure network access, this vulnerability could allow attackers to undermine the certificate-based authentication mechanisms that protect network resources. The attack surface is particularly concerning because it targets the certificate working directory, which typically contains sensitive cryptographic materials and trust relationships that are fundamental to secure communications within the enterprise network. Additionally, the ability to delete files could disrupt legitimate certificate operations, potentially causing service outages or forcing administrators to manually restore compromised systems.
Mitigation strategies for CVE-2025-9142 should focus on immediate application-level fixes and operational security enhancements. Organizations should prioritize applying vendor-provided patches or updates that address the path traversal vulnerability in the Harmony SASE client. System administrators should implement additional access controls and monitoring to detect unauthorized file system modifications, particularly around certificate directories and sensitive system locations. The principle of least privilege should be enforced to limit local user access to the Harmony SASE client, reducing the attack surface for potential exploitation. Network segmentation and host-based security controls can help detect anomalous file operations that might indicate exploitation attempts. Security monitoring should include detection of unusual file creation or deletion patterns in certificate-related directories, as well as monitoring for path traversal sequences in application logs. Organizations should also consider implementing application whitelisting policies that restrict execution of the Harmony SASE client to authorized users and systems, preventing unauthorized individuals from leveraging the vulnerability. The ATT&CK framework categorizes this vulnerability under T1059 Command and Scripting Interpreter and T1566 Phishing, as exploitation typically involves local system access and potentially requires social engineering to gain initial access before leveraging the path traversal flaw for privilege escalation or system compromise.