CVE-2017-17293 in ARXXXX
Summary
by MITRE
Huawei AR120-S V200R006C10, V200R007C00, V200R008C20, V200R008C30, AR1200 V200R006C10, V200R006C13, V200R007C00, V200R007C01, V200R007C02, V200R008C20, V200R008C30, AR1200-S V200R006C10, V200R007C00, V200R008C20, V200R008C30, AR150 V200R006C10, V200R007C00, V200R007C01, V200R007C02, V200R008C20, V200R008C30, AR150-S V200R006C10, V200R007C00, V200R008C20, V200R008C30, AR160 V200R006C10, V200R006C12, V200R007C00, V200R007C01, V200R007C02, V200R008C20, V200R008C30, AR200 V200R006C10, V200R007C00, V200R007C01, V200R008C20, V200R008C30, AR200-S V200R006C10, V200R007C00, V200R008C20, V200R008C30, AR2200 V200R006C10, V200R006C13, V200R006C16, V200R007C00, V200R007C01, V200R007C02, V200R008C20, V200R008C30, AR2200-S V200R006C10, V200R007C00, V200R008C20, V200R008C30, AR3200 V200R006C10, V200R006C11, V200R007C00, V200R007C01, V200R007C02, V200R008C00, V200R008C10, V200R008C20, V200R008C30, AR3600 V200R006C10, V200R007C00, V200R007C01, V200R008C20, AR510 V200R006C10, V200R006C12, V200R006C13, V200R006C15, V200R006C16, V200R006C17, V200R007C00, V200R008C20, V200R008C30, DP300 V500R002C00, MAX PRESENCE V100R001C00, NetEngine16EX V200R006C10, V200R007C00, V200R008C20, V200R008C30, RP200 V500R002C00, V600R006C00, SRG1300 V200R006C10, V200R007C00, V200R007C02, V200R008C20, V200R008C30, SRG2300 V200R006C10, V200R007C00, V200R007C02, V200R008C20, V200R008C30, SRG3300 V200R006C10, V200R007C00, V200R008C20, V200R008C30, TE30 V100R001C02, V100R001C10, V500R002C00, V600R006C00, TE40 V500R002C00, V600R006C00, TE50 V500R002C00, V600R006C00, TE60 V100R001C01, V100R001C10, V500R002C00, V600R006C00, TP3106 V100R002C00, TP3206 V100R002C00, V100R002C10 have a buffer overflow vulnerability. An authenticated, local attacker may craft a specific XML file to the affected products. Due to insufficient input validation, successful exploit will cause some service abnormal.
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Analysis
by VulDB Data Team • 02/08/2023
The vulnerability identified as CVE-2017-17293 represents a critical buffer overflow flaw affecting numerous Huawei network equipment models across multiple product lines including AR series routers, SRG series gateways, and various video conferencing devices. This vulnerability resides within the XML processing functionality of affected devices, where insufficient input validation permits maliciously crafted XML files to trigger memory corruption during parsing operations. The flaw manifests when authenticated local attackers submit specifically constructed XML payloads that exceed allocated buffer boundaries, leading to unpredictable system behavior and potential service disruption. The affected product range spans multiple firmware versions from V200R006C10 through V200R008C30 for various router models, along with V500R002C00 and V600R006C00 versions for conferencing equipment, indicating a widespread exposure across Huawei's networking and communications portfolio.
The technical exploitation of this vulnerability follows a classic buffer overflow pattern where the system fails to properly validate the size of incoming XML data before processing. When the XML parser encounters oversized input data, it writes beyond the allocated memory buffer, potentially overwriting adjacent memory locations including return addresses, function pointers, or other critical control structures. This memory corruption can result in arbitrary code execution or service termination, depending on the specific memory locations overwritten and the system's response to the overflow condition. The vulnerability requires local authentication, meaning an attacker must first establish a legitimate session with the device before attempting exploitation, though this authentication requirement does not prevent the potential for privilege escalation or service disruption once the buffer overflow is successfully triggered.
From an operational impact perspective, this vulnerability presents significant security risks to organizations relying on Huawei networking equipment, as it allows for potential service degradation or complete system instability. The buffer overflow can cause critical network services to crash, leading to denial of service conditions that may affect business operations, network connectivity, or communication systems. The affected devices operate in enterprise and telecommunications environments where continuous availability is paramount, making this vulnerability particularly concerning. The potential for arbitrary code execution within the device's operating environment could allow attackers to gain further control over network infrastructure, potentially enabling lateral movement within the network or data exfiltration from connected systems. This aligns with ATT&CK technique T1059.007 for command and scripting interpreter and T1499.004 for network disruption, as the vulnerability could be leveraged to cause system instability or service unavailability.
The mitigation strategies for CVE-2017-17293 should focus on immediate firmware updates provided by Huawei to address the buffer overflow in XML processing components. Organizations must ensure all affected devices receive the latest security patches and firmware versions that include input validation improvements and memory boundary checks. Network segmentation and access control measures should be implemented to limit local access to these devices, reducing the attack surface for potential exploitation. Monitoring systems should be configured to detect unusual XML processing activities or service disruptions that might indicate attempted exploitation. The vulnerability maps to CWE-121, heap-based buffer overflow, and CWE-122, stack-based buffer overflow, highlighting the need for proper memory management practices in software development. Additionally, implementing network access controls, disabling unnecessary services, and maintaining comprehensive system logging will help detect and prevent exploitation attempts while ensuring continued network availability and security posture.