CVE-2017-15323 in DP300
Summary
by MITRE
Huawei DP300 V500R002C00, NIP6600 V500R001C00, V500R001C20, V500R001C30, Secospace USG6500 V500R001C00, V500R001C20, V500R001C30, TE60 V100R001C01, V100R001C10, V100R003C00, V500R002C00, V600R006C00, TP3106 V100R001C06, V100R002C00, VP9660 V200R001C02, V200R001C30, V500R002C00, V500R002C10, ViewPoint 8660 V100R008C03, ViewPoint 9030 V100R011C02, V100R011C03, eCNS210_TD V100R004C10, eSpace U1981 V200R003C30 have a DoS vulnerability caused by memory exhaustion in some Huawei products. For lacking of adequate input validation, attackers can craft and send some malformed messages to the target device to exhaust the memory of the device and cause a Denial of Service (DoS).
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Analysis
by VulDB Data Team • 02/17/2023
The vulnerability identified as CVE-2017-15323 represents a critical denial of service flaw affecting multiple Huawei network security and communication devices including DP300, NIP6600, Secospace USG6500, TE60, TP3106, VP9660, ViewPoint series, and eCNS210_TD products. This vulnerability stems from insufficient input validation mechanisms within the affected software versions, creating a pathway for malicious actors to exploit memory exhaustion conditions that can render devices inoperable. The flaw specifically targets the handling of malformed network messages that are processed by these devices, allowing attackers to consume available system memory through carefully crafted payloads.
The technical implementation of this vulnerability demonstrates a classic memory exhaustion attack pattern where the absence of proper input validation allows attackers to send specially constructed messages that trigger excessive memory allocation within the target device's processing stack. When these malformed messages are received and processed, the devices allocate memory resources without adequate bounds checking or resource limiting, leading to progressive memory consumption until the system reaches its operational limits. This process typically occurs through buffer overflows, improper handling of variable-length data, or failure to implement adequate resource management controls in the message parsing routines.
The operational impact of this vulnerability extends beyond simple service disruption as it affects critical network infrastructure components that may be deployed in enterprise, telecommunications, or government environments. Organizations relying on these Huawei devices for network security, voice communication, or video conferencing services face significant risks when this vulnerability is exploited, potentially leading to extended outages that can affect business continuity, communication services, or critical infrastructure operations. The attack surface is particularly concerning given the widespread deployment of these devices across various sectors including financial services, healthcare, and public utilities where uninterrupted service is paramount.
Security practitioners should consider this vulnerability in the context of the CWE-129 weakness classification which addresses inadequate input validation, and align it with ATT&CK technique T1499.004 for network denial of service attacks. The vulnerability's exploitation requires minimal sophistication but can cause substantial operational damage, making it particularly attractive to threat actors seeking to disrupt network services. Organizations should implement immediate mitigations including network segmentation to limit exposure, deployment of intrusion detection systems to monitor for malformed traffic patterns, and regular firmware updates to address the underlying memory management flaws. Additionally, configuring rate limiting and implementing proper input validation controls at network boundaries can help reduce the attack surface and prevent successful exploitation of this memory exhaustion vulnerability across the affected Huawei product portfolio.