CVE-2017-17222 in eSpace 7950
Summary
by MITRE
Import Language Package function in Huawei eSpace 7950 V200R003C30; eSpace 8950 V200R003C00; V200R003C30 has a remote code execution vulnerability. An authenticated, remote attacker can craft and send the packets to the affected products after Language Package is uploaded. Due to insufficient verification of the packets, this could be exploited to execute arbitrary code.
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Analysis
by VulDB Data Team • 02/17/2023
The CVE-2017-17222 vulnerability affects Huawei eSpace 7950 and 8950 communication devices running specific software versions, presenting a critical remote code execution flaw within the language package import functionality. This vulnerability resides in the device's handling of language packages, which are essential for user interface localization and system configuration. The affected systems process language packages through a function that fails to adequately validate incoming data, creating a pathway for malicious actors to exploit the system remotely. The vulnerability specifically targets the import mechanism that allows administrators to upload language packages to configure system interfaces in different languages, making it a legitimate administrative function that has been subverted for malicious purposes.
The technical flaw manifests through insufficient input validation and sanitization within the language package processing pipeline. When an authenticated attacker uploads a specially crafted language package, the system's inadequate verification mechanisms fail to detect malicious code embedded within the package structure. This weakness allows attackers to bypass normal security controls and execute arbitrary code on the affected devices with the privileges of the authenticated user. The vulnerability is particularly concerning because it requires only authentication to exploit, meaning that an attacker who has obtained valid credentials can remotely compromise the system without requiring additional access vectors. The flaw operates at the application layer, specifically within the device's firmware or software configuration management subsystem, where the language package import function does not properly validate the integrity and content of uploaded files.
The operational impact of this vulnerability extends beyond simple unauthorized code execution, as it enables attackers to gain full control over the affected communication devices. Once exploited, attackers can manipulate the device's configuration, access sensitive communications, install backdoors, or use the compromised device as a pivot point for further attacks within the network. The vulnerability affects enterprise communication systems that rely on these devices for voice and video conferencing, making it particularly dangerous in business environments where such systems handle confidential information. The remote nature of the exploit means that attackers can target these devices from anywhere on the network, potentially allowing for widespread compromise across multiple locations. Organizations using these devices face significant risks including data breaches, service disruption, and potential escalation to more severe network intrusions.
Mitigation strategies for CVE-2017-17222 should focus on immediate patching of affected systems, as Huawei has released security updates addressing this vulnerability. Network segmentation and access control measures can help limit the potential impact by restricting access to administrative functions and language package upload capabilities. Implementing network monitoring to detect unusual traffic patterns related to language package uploads and system configuration changes can provide early warning of potential exploitation attempts. Security teams should also enforce strict authentication controls and regularly audit administrative access logs to identify unauthorized activities. Organizations should consider implementing network-based intrusion detection systems that can identify and block malicious packet patterns associated with this vulnerability. The vulnerability aligns with CWE-20 Improper Input Validation and follows attack patterns documented in the ATT&CK framework under T1059 Command and Scripting Interpreter, as it enables attackers to execute arbitrary commands on compromised systems through legitimate administrative functions. Regular security assessments and vulnerability scanning should be conducted to identify similar issues in other network infrastructure components that may present similar attack surfaces.